QUESTION 1 You are a technician at Cisco Highway. You tell your newly appointed Cisco Highway trainee that Ethernet networks are broadcast domains and collision domains. Your trainee wants to know what happens when a collision occurs on the network. What would your reply be? (Choose all that apply.)
A. Each device stops transmitting for a short time.
B. A jam signal informs all devices that a collision occurred.
C. When data transmission resumes, the devices that were involved in the collision have priority to transmit.
D. The devices that are involved in the collision stops transmitting for a short time.
E. The collision invokes a random back-off algorithm. Answer: A, B, E
A. Each ( all ) devices stop transmitting for a short time.
B. A jamning signal is sent out to all devices that a collision has occurred.
E. The collision invokes a back-off algorithm
QUESTION 2 You are a technician at Cisco Highway. Cisco Highway plans to implement a public network. The company's ISP suggested that Cisco Highway register a Class IP address. The Cisco Highway CEO wants to know how many usable IP addresses are provided in a Class C address. What would your reply be?
A. 128
B. 192
C. 254
D. 256
E. 510 Answer: C Class C addresses range from 192.0.0.1 through 223.225.225.225 and default subnet mask of 255.255.255.0. In Class C addresses, the first 24 bits are used as for the network ID while only the last 8 bits is used for the host ID. Using the 2n-2 formula, we can calculate that Class C addresses can support a maximum of 16,777,214 (224- 2) networks and 254 (28-2) hosts. Reference: Cisco Highway 640-821 Study Guide version 1.1, Section 2.1.3 "IP Address Classes"; Cisco Highway 640-821 Study Guide version 1.1, Section 2.1.4 "CIDR Notation".
QUESTION 3 You are the network administrator at Cisco Highway. From your workstation you telnet to a router VTY line. You perform a number of configurations on the router. You now want to terminate the telnet connection. What command must you issue to terminate the Telnet connection?
A. close
B. disable
C. disconnect
D. suspend
E. exit Answer: C Explanation: Terminating a Telnet session Use the disconnect from the router you Telnetted from.
Reference: CCNA Self-Study CCNA INTRO exam certification Guide (Cisco Press, ISBN 1-58720-094-5) Page 398
QUESTION 4 You work as a network administrator at Cisco Highway. You are required to configure two routers named Cisco Highway1 and Cisco Highway2. The topology for the Cisco Highway network is shown in the following exhibit:
The enable password is "Cisco Highway". You are required to configure the following passwords on the Cisco Highway2 router:
Console password: Jack
Vty lines 0-4 password: king To configure the router click on a host icon that is connected to a router by a serial cable. Answer: Click on Host 4: Router Cisco Highway2: Cisco Highway2>enable Password:Cisco Highway Cisco Highway2#config terminal Cisco Highway2(config)#line console 0 Cisco Highway2(config-line)#login Cisco Highway2(config-line)#password Jack Cisco Highway2(config-line)#exit Cisco Highway2(config)#line vty 0 4 Cisco Highway2(config-line)#login Cisco Highway2(config-line)#password king Cisco Highway2(config-line)#exit Cisco Highway2(config)#exit Cisco Highway2#copy running-config startup-config Reference: CCNA Self-Study CCNA INTRO exam certification Guide (Cisco Press, ISBN 1-58720-094-5) Page 177
QUESTION 5 You work as a network administrator at Cisco Highway. You are required to configure two routers named Cisco Highway1 and Cisco Highway2. The network topology is shown in the exhibit. The routers have the following configuration specifications:
They are named Cisco Highway1 and Cisco Highway2
The password on both routers is "Cisco Highway".
They have the following IP addresses Cisco Highway1 E0: 10.0.239.155 Cisco Highway2 No IP address specifications. Your task is to configure the E0 interface on the Cisco Highway1 router. You should use the IP address 10.0.239.155 and the default subnet mask. To configure the router click on a host icon that is connected to a router. Answer: Router Cisco Highway1: Cisco Highway1>enable Password:Cisco Highway Cisco Highway1#config terminal Cisco Highway1(config)#int e 0 Cisco Highway1(config-if)#ip address 10.0.239.155 255.0.0.0 Cisco Highway1(config-if)#no shutdown Cisco Highway1(config-line)#exit Cisco Highway1(config)#exit Cisco Highway1#copy running-config startup-config Reference: CCNA Self-Study CCNA INTRO exam certification Guide (Cisco Press, ISBN 1-58720-094-5) Page 177
QUESTION 6 You are the network administrator at Cisco Highway.com. The internal Cisco Highway network is shown in the following exhibit:
With regard to the IP addressing information in the exhibit, which interface will Router B use to forward an IP datagram to a host with an IP address of 10.10.10.10?
A. S0
B. E0
C. E1
D. E2 Answer: B Explanation: IP address 10.10.10.10 is on the 10.10.10.0 network. This network is attached to the E0 interface on RouterB. This would thus be the path to an address on the 10.10.10.0 network.
QUESTION 7 Match the Layer 4 network service with the corresponding TCP port number by dragging the options on the left to the correct target on the right.
Answer:
Reference: Cisco Highway 640-821 Study Guide version 1.1, Appendix B, "Common TCP and UDP Ports Assignments".
QUESTION 8 With regard to Positive Acknowledgment and Retransmission (PAR), which of the following are true? (Choose all that apply.)
A. The source device will only retransmit lost packets on the request of the destination device.
B. The source device starts a timer when it sends a segment and retransmits if an acknowledgment is not received before the timer expires.
C. The destination device acknowledges receipt of a segment by sending a packet with a new sequence number and the ACK bit sent.
D. The destination device acknowledges receipt of a segment by sending a packet that indicates the next sequence number it expects.
E. If the destination device does not receive a segment, all segments are retransmitted.
F. The source device keeps a record of all segments sent and expects and acknowledgment of each. Answer: B, D, F Explanation: Answer B
The sender sets a re-transmission timer, awaiting acknowledgement, just in case the acknowledgement is lost, or in call all the transmitted segments are lost. Answer D
The client will reply with an acknowledgement that requests for the next sequence number. Answer F
The only way to know that it has sent the certain sequence number by keeping a record of it. Reference: CCNA Self-Study CCNA INTRO exam certification Guide (Cisco Press, ISBN 1-58720-094-5) page 156
QUESTION 9 Which of the following standards defines Wi-Fi?
A. IEEE 802.11a
B. IEEE 802.11b
C. IEEE 802.11g
D. IEEE 802.11i
E. IEEE 802.11 Answer: E Explanation: IEEE 802.11 was the original standard for wireless networks. However, the standard had a few ambiguities allowed for potential problems with compatibility between devices. To ensure compatibility, a group of companies formed the Wireless Ethernet Compatibility Alliance (WECA), which has come to be known as the IEEE 802.11 wireless network products that have passed the Wi-Fi Alliance certification tests. Reference: Cisco Highway 640-821 Study Guide version 1.1, Section 1.4.8 "Wireless Networks".
QUESTION 10 Which of the following statements are true? (Choose all that apply.)
A. The extended ping command is supported from user EXEC mode.
B. The extended ping command is supported from privileged EXEC mode.
C. With the extended ping command you can specify the port to be pinged.
D. With the extended ping command you can specify the timeout.
E. With the extended ping command you can specify the datagram size. Answer: B D E Explanation: The extended ping command works only at the privileged EXEC command line. Datagram size [100]: Size of the ping packet (in bytes). Default: 100 bytes. Timeout in seconds [2]: Timeout interval. Default: 2 (seconds). The ping is declared successful only if the ECHO REPLY packet is received before this time interval. Reference: http://www.cisco.com/en/US/tech/tk365/tk554/technologies_tech_note09186a0080093f22.shtml#extend_ping
QUESTION 11 Study the Exhibit below carefully: What is the function of the Frame Relay DLCI with regard to Cisco HighwayA?
A. Defines the signaling standard between Cisco HighwayA and Cisco HighwayB,
B. Identifies the type of encapsulation in operation between Cisco HighwayA and Cisco HighwayB.
C. Identifies the circuit between Cisco HighwayB and the frame switch.
D. Defines the signaling standard between Cisco HighwayA and the frame switch. Answer: C Explanation: Cisco HighwayA sends frames with DLCI, and they reach the local switch. The local switch sees the DLCI field and forwards the frame through the Frame Relay network until it reaches the switch connected to Cisco HighwayB. The Cisco HighwayB's local switch forwards the frame out of the access link to Cisco HighwayB. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page 386
QUESTION 12 What could be the rationale behind using passive-interface command when configuring a router?
A. Allows interfaces to share common IP addresses.
B. Allows an interface to remain up without the aid of keepalives.
C. Allows a router to send routing and not receive updates via that interface.
D. Allows a routing protocol to forward updates that is missing its IP address.
E. Allows a router to receive routing updates on an interface but not send updates via that interface. Answer: E Explanation: The passive-interface command is used to control the advertisement of routing information. The command enables the suppression of routing updates over some interfaces while allowing updates to be exchanged normally over other interfaces. With most routing protocols, the passive-interface command restricts outgoing advertisements only. However, when used with Enhanced Interior Gateway Routing Protocol (EIGRP), the effect is slightly different. This document demonstrates that use of the passive-interface command in EIGRP suppresses the exchange of hello packets between two routers, resulting in the loss of their neighbor relationship. This stops not only routing updates from being advertised, but it also suppresses incoming routing updates. This document also discusses the configuration required in order to allow the suppression of outgoing routing updates, while allowing incoming routing updates to be learnt normally from the neighbor. Reference: http://www.cisco.com/en/US/tech/tk365/tk207/technologies_tech_note09186a0080093f0a.shtml
QUESTION 13 You are a network administrator at Cisco Highway. The Cisco Highway network is illustrated in the following exhibit. Study it carefully:
Cisco Highway is acquiring a new Class C IP network. Which of the following subnet masks will provide one useful subnet for each department while still making allowance for enough usable host addresses per department as specified in the graphic?
A. 255.255.255.128
B. 255.255.255.192
C. 255.255.255.224
D. 255.255.255.240
E. 255.255.255.248
F. 255.255.255.252 Answer: C Explanation: The network currently consists of 5 subnets. We need to subnet the Class C network into at least 5 subnets. This requires that we use 3 bits for the network address. Using the formula 2n-2 we get 6. This also leaves us with 5 bits for hosts, which gives us 30 hosts. Incorrect Answers:
A: Only 1 bit is required to give us 128 but 1 bit gives us 0 subnets.
B: 2 bits are required to give us 192 but 2 bits gives us only 2 subnets. This is too few.
D: 4 bits are required to give us 240. This gives us 14 subnets. However we are left with 4 bits for hosts leaving us with 14 host addresses. Two of the networks require more than 14 hosts so this will not do.
E: 5 bits are required to give us 248. This gives us 30 subnets. However we are left with 3 bits for hosts leaving us with 6 host addresses. All the networks require more than 6 hosts so this will not do.
F: 6 bits are required to give us 252. This gives us 62 subnets. However we are left with 2 bits for hosts leaving us with 2 host addresses. This is too few.
QUESTION 14 You are a network administrator at Cisco Highway. You need to troubleshoot the Cisco Highway network shown in the exhibit. Study the Exhibit carefully:
The host, CK1, is connected to the Cisco Highway1 LAN, but it cannot get access to resources on any of the other networks. The host's configuration is as follows: host address: .....192.168.166.45 subnet mask: ......255.255.255.240 default gateway: ..192.168.166.32 Then which of the following is the cause of the problem?
A. The default gateway is a network address.
B. The default gateway is on a different subnet address as the host.
C. The IP address of the host is on a different subnet.
D. The host subnet mask is incompatible to the subnet mask of the attached router interface. Answer: A Explanation: The range of the subnet used in this question is 192.168.166.32 to 192.168.166.47.192.168.166.32 is the network address and 192.168.166.47 is the broadcast address leaving a usable host address range of 192.168.166.33 to 192.168.166.46. The default gateway for the host should be 192.168.166.33. Incorrect Answers:
B: The default gateway is on the same network but it is a network address.
C: The host address is correct.
D: The subnet mask 255.255.255.240 uses 28 bits and is therefore correct.
QUESTION 15 What are the benefits of using a router to segment the network at a main office? (Select two options.)
A. Broadcasts are not forwarded across the router.
B. Broadcasts are eradicated.
C. Adding a router to the network decreases latency.
D. Filtering can occur based on Layer 3 information.
E. Routers are more efficient than switches. Answer: A, D Explanation Routers do not forward broadcast messages and therefore breaks up a broadcast domain. In addition, routers can be used to filter network information.
QUESTION 16 You are a network technician at Cisco Highway. Cisco Highway has a larger 172.12.0.0 network that you want to divide into subnets. You want each subnet to support 459 hosts. You also want to provide the maximum number of subnets. Which network mask should you use?
A. 255.255.0.0.
B. 255.255.128.0.
C. 255.255.224.0.
D. 255.255.254.0. Answer: D Explanation: To obtain 459 hosts the number of host bits will be 9. This can support a maximum of 510 hosts. To keep 9 bits for hosts means the last bit in the 3rd octet will be 0. This gives 255.255.254.0 as the subnet mask.
QUESTION 17 Your new junior Cisco Highway trainee, Rutger, has a problem with basic binary math. He must convert the binary number 10011101 into its decimal and hexadecimal equivalent. Which two numbers must Rutger provide? (Select two options)
A. 158
B. 0x9D
C. 156
D. 157
E. 0x19 F. 0x9F Answer: B D Explanation: 10011101 = 157 0x9D is ASCII Hexadecimal = 157 Reference: http://www.cisco.com/en/US/products/sw/iosswrel/ps1818/products_command_reference_
chapter09186a00800 7fc95.html
QUESTION 18 You are a network technician at Cisco Highway. The Cisco Highway network is illustrated in the following exhibit. Study it carefully: Note: SPIDs are not required for this switch. Which of the following command will you use to bring up the ISDN link? (Select three options.)
A. Router(config-if)# encapsulation ppp
B. Router(config)# dialer-list 1 protocol ip allow
C. Router(config)# isdn switch-type type
D. Router(config)# dialer map ip address name connection number
E. Router(config-if)# dialer-group 1
F. Router(config-if)# ip address subnet mask Answer: A E F Explanation:
Proper encapsulation to be defined on both routers.
IP address to be assigned for interface with subnet mask
Dialer group number enables dialer-list on this interface. Dialer-list to be defined on global configuration command. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page 310+337
QUESTION 19 You are a network technician at Cisco Highway. You are troubleshooting a LAN connectivity problem. Which of the following router IOS commands could you use? (Select three options.)
A. show ip route
B. winipcfg
C. tracert
D. show interfaces
E. traceroute
F. ping Answer: A D F Explanation
A: The show ip route command displays the IP route table.
D: The show interfaces EXEC command to display statistics for all interfaces configured on the router or access server.
F: The ping command tests connectivity to a remote node.
QUESTION 20 Place the parameters in the correct sequence to configure dial-on-demand routing (DDR) on an ISDN BRI interface.
Answer: Place 1st - next hop address Place 2nd - Dialer-list Place 3rd - protocol Place 4th - Dialer-String Place 5th - group Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page 342
QUESTION 21 Which of the following commands will you use to display the configuration register setting on a router?
A. show boot
B. show flash
C. show register
D. show version
E. show config Answer: D Explanation: show version To display the configuration of the system hardware, the software version, the names and sources of configuration files, and the boot images, use the show version command in EXEC mode. Examples The following is sample output from the show version command: Router1> show version Cisco Internet work Operating System Software IOS (tm) 7200 Software (C7200-J-M), Experimental Version 11.3(19970915:164752) [ hampton-nitro-baseline 249] Copyright (c) 1986-1997 by cisco Systems, Inc. Compiled Wed 08-Oct-97 06:39 by hampton Image text-base: 0x60008900, data-base: 0x60B98000
ROM: System Bootstrap, Version 11.1(11855) [beta 2], INTERIM SOFTWARE BOOTFLASH: 7200 Software (C7200-BOOT-M), Version 11.1(472), RELEASE SOFTWARE (fc1) Router1 uptime is 23 hours, 33 minutes System restarted by abort at PC 0x6022322C at 10:50:55 PDT Tue Oct 21 1997 System image file is "tftp://171.69.1.129/hampton/nitro/c7200-j-mz" cisco 7206 (NPE150) processor with 57344K/8192K bytes of memory. R4700 processor, Implementation 33, Revision 1.0 (512KB Level 2 Cache) Last reset from power-on Bridging software.
X.25 software, Version 3.0.0. SuperLAT software copyright 1990 by Meridian Technology Corp). TN3270 Emulation software. 8 Ethernet/IEEE 802.3 interface(s) 2 FastEthernet/IEEE 802.3 interface(s) 4 Token Ring/IEEE 802.5 interface(s) 4 Serial network interface(s) 1 FDDI network interface(s) 125K bytes of non-volatile configuration memory. 1024K bytes of packet SRAM memory. 20480K bytes of Flash PCMCIA card at slot 0 (Sector size 128K). 20480K bytes of Flash PCMCIA card at slot 1 (Sector size 128K). 4096K bytes of Flash internal SIMM (Sector size 256K). Configuration register is 0x0 Reference: http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/fun_r/cfr_1g10.htm#1033030
QUESTION 22 You are a network administrator at Cisco Highway. You must configure a new subnetwork at the Cisco Highway branch office in Berlin. You have been provided with the subnet mask of 255.255.255.224. You want to assign IP addresses to hosts on the subnet. Which of the following IP addresses would you use? (Choose all that apply.)
A. 16.23.118.63
B. 87.45.16.159
C. 92.11.178.93
D. 134.178.18.56
E. 192.168.16.87
F. 217.168.166.192 Answer: C, D, E Explanation:
C: Valid Host in subnetwork 2 ( 92.11.178.64 to 92.11.178.95)
D: Valid Host in subnetwork 1 (134.178.18.32 to 134.178.18.63)
E: Valid Host in subnetwork 2 (192.168.16.64 to 192.168.16.95)
QUESTION 23 You are a network technician at Cisco Highway. You need to configure Frame Relay on a Cisco router. What is the default LMI (Local Management Interface) frame type transmitted by the Cisco router on a Frame Relay circuit?
A. IETF
B. B8ZS
C. ANSI
D. Cisco
E. Q933a Answer: D Explanation: Name Document IOS LMI-Type Parameter
Cisco Proprietary cisco
ANSI T1.617 Annex D ansi
ITU Q.933. Annex A q.933a Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page 382
QUESTION 24 You are a network technician at Cisco Highway. You have subnetted the 210.106.14.0 network with a /24 mask. Your supervisor asks you how many usable subnetworks and usable host addresses per subnet this would make provision for. What would your response be?
A. 1 network with 254 hosts
B. 4 networks with 128 hosts
C. 2 networks with 24 hosts
D. 6 networks with 64 hosts
E. 8 networks with 36 hosts Answer: A Explanation: A subnet with 24 bits on would be 255.255.255.0. This subnet has only 1 network and 254 hosts.
QUESTION 25 You are a network technician at Cisco Highway. Due to rapid expansion, Cisco Highway is leaning towards scalable WAN technology. Immediate plans for the company include an additional 7 regional offices with all sites requiring continuous connectivity, but the current head office has no free ports available. Which of the following WAN technologies will meet the requirements?
A. Frame Relay
B. Broadband cable
C. ISDN-BRI
D. ADSL
E. Dedicated PPP/HDLC links
F. ISDN Answer: A
QUESTION 26 You are a network technician at Cisco Highway. You apply the access list illustrated below to interface E0 on a Cisco router. The interface is connected to the 192.168.1.8/29 LAN. access-list 123 deny tcp 192.168.166.18 0.0.0.7 eq 20 any access-list 123 deny tcp 192.168.166.18 0.0.0.7 eq 21 any What are the consequences of this specific access list?
A. All traffic will be allowed to exit E0 except FTP traffic.
B. FTP traffic from 192.168.166.19 to any host will be denied.
C. FTP traffic from 192.168.166.22 to any host will be denied.
D. All traffic exiting E0 will be denied.
E. All FTP traffic to network 192.168.166.18/29 from any host will be denied. Answer: D Explanation: By default access list is having implicit deny statement at the end. In this example there is no permit statement, so it will deny all traffic exiting E0 Interface. Incorrect answers
A: It will deny FTP and Telnet Traffic B,C,E: It will deny all traffic in addition to the condition mentioned in the answer. Because there is no permit statement at the end.
QUESTION 27 What are the characteristic of link state routing protocols? (Choose all that apply.)
A. The exchange of advertisement is triggered by a change in the network.
B. All routers exchange routing tables with each other in a multipoint network.
C. Packets are routed based upon the shortest path to the destination.
D. Paths are chosen depending on the cost efficiency factor.
E. Every router in an OSPF area is capable of representing the entire network topology.
F. Only the designated router in an OSPF area can represent the entire network topology. Answer: A C E Explanation: Open Shortest Path First
Each router discovers its neighbors on each interface. The list of neighbors is kept in a neighbor table.
Each router uses a reliable protocol to exchange topology information with its neighbors.
Each router places the learned topology information into its topology database.
Each router runs the SPF algorithm against its own topology database.
Each router runs the SPF algorithm against its own topology database to calculate the best routes to each subnet in the database.
Each router places the best roué to each subnet into the IP routing table. The following list points out some of the key features of OSPF:
Converges very quickly - from the point of recognizing a failure, it often can converge in less than 10 seconds.
Supports VLSM.
Uses short Hello messages on a short regular interval, with the absence of hello messages indicating that a neighbor is no longer reachable.
Sends partial updates when link status changes, and floods full updates every 30 minutes. The flooding, however, does not happened all at once, so the overhead s minimal.
Uses cost for the metric. Reference: CCNA Self-Study CCNA INTRO exam certification Guide (Cisco press, ISBN 1-58720-094-5) Page 417
QUESTION 28 You use multiple access lists when configuring it on an interface of a Cisco router. Which of the following statements are valid?
A. Application of up to three access lists per protocol to a single interface.
B. No more than two access lists per interface.
C. One access list may be configured per direction for each Layer 3 protocol configured on an interface.
D. The maximum number allowed varies due to RAM availability in the router.
E. An infinite number of access lists that can be applied to an interface, from most specific to most general.
F. Cisco IOS allows only one access list to an interface. Answer: C
QUESTION 29 Which of the following are typical Layer 2 encapsulations for a WAN link? (Choose all that apply.)
A. Ethernet
B. PPP
C. Token Ring
D. HDLC
E. Frame Relay
F. POTS Answer: B, D E Explanation: WAN data-link protocols used on point-to-point serial links provide the basic function of data delivery across that one link. The two most popular WAN data-link protocols are High-Level Data Link Control (HDLC) and PPP. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page
QUESTION 30 You are a network technician at Cisco Highway. Cisco Highway has its head office in Mumbai and a branch office in Delhi. You want to establish connectivity between head office and the branch office. You intend using two data link layer encapsulation, one for data and one for signaling. What type of WAN service allows two data layer encapsulations of this nature?
A. ISDN
B. ATM
C. FDDI
D. ATX
E. Frame Relay Answer: A Explanation: ISDN Q.931 messages are used for signaling. ISDN B channels are used to transport data. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page 327
QUESTION 31 You are a network technician at Cisco Highway. You use a Cisco router to divide the Cisco Highway network into two separate segments, Cisco Highway1 and Cisco Highway2. The Cisco Highway CEO is concerned about the cost, and wants to know what the purpose of your action is. What should you tell him?
A. It decreases the number of broadcast domains.
B. It makes broadcasting domains more efficient between segments.
C. It increases the number of collisions.
D. It prevents segment 1's broadcasts from getting to segment 2.
E. It connects segment 1's broadcasts to segment 2. Answer: D Explanation A router does not forward broadcast traffic. It therefore breaks up a broadcast domain, reducing unnecessary network traffic.
QUESTION 32 You are a network technician at Cisco Highway. A newly appointed trainee wants to know what the basics of distance vector and link state routing protocols are. What would your reply be? (Choose all that apply.)
A. Distance vector protocols send the entire routing table to directly connected neighbors.
B. Distance vector protocols are responsible for sending updates to all networks listed in the routing table.
C. Link state protocols are responsible for sending the entire routing table to the whole network.
D. Link state protocols send updates regarding their own links status to all other routers on the network. Answer: A D Explanation: Distance Vector Protocols: Distance Vector Protocols advertise routing information by sending messages, called routing updates, out the interfaces on a router. These updates contain a series of entries, with each entry representing a subnet and a metric. Link-State Protocols: Sends partial updates when link status changes and floods full updates every 30 minutes. The flooding, however, does not happen all at once, so the overhead is minimal. Reference: CCNA Self-Study CCNA INTRO exam certification Guide (Cisco press, ISBN 1-58720-094-5) Page 413 + 419
QUESTION 33 Which of the following statements is true regarding the split horizon rule?
A. Distance vector protocols need fall back routes that are responsible for momentary loops.
B. Networks can only remain fully operational provided all information is sent out all active interfaces.
C. Each AS must keep routing tables converged to avoid dead routes from being advertised.
D. Information about a route should not be sent back in the direction from which the original update came.
E. Only routers can split boundaries (horizons) between concentric networks. Answer: D Explanation: Split horizon blocks information about routes from being advertised by a router out of any interface from which that information originated. Reference: http://www.cisco.com/en/US/products/sw/iosswrel/ps1826/products_configuration_guide_chapter09186a00800 877c6.php
QUESTION 34 You are a network technician at Cisco Highway. A newly appointed trainee wants to know what the differences and similarities between bridges and switches are. What would your reply be? (Choose all that apply.)
A. Bridges are faster than switches because they have fewer ports.
B. A switch is a multiport bridge,
C. Bridges and switches learn MAC addresses by examining the source MAC address of each frame received.
D. A bridge will forward a broadcast but a switch will not.
E. Bridges and switches increase the size of a collision domain. Answer: B C Explanation: Bridges build the bridge table by listening to incoming frames and examining the source MAC address in the frame. Switches are multiport bridges that allow you to create multiple broadcast domains. Each broadcast domain is like a distinct virtual bridge within a switch. Reference: CCNA Self-Study CCNA INTRO exam certification Guide (Cisco press, ISBN 1-58720-094-5) Page 239 http://www.cisco.com/en/US/products/hw/switches/ps4324/products_configuration_guide_chapter09186a00801 86a3e.php
QUESTION 35 You are a network technician at Cisco Highway. You are working with a 2500 series Cisco router. You are performing the password recovery procedure. You have just typed the following command: o/r 0x2142 Your newly appointed trainee is curious about why this command is used. What should you tell him?
A. It is used to restart the router.
B. It is used to bypass the configuration in NVRAM.
C. It is used to enter ROM Monitor mode.
D. It is used to view the lost password.
E. It is used to save the changes to the configuration. Answer: B Explanation: The o/r 0x2142 command changes the value of config-register to 2142, so that the Router ignores the NVRAM contents when it boots. Reference: http://www.cisco.com/en/US/products/hw/routers/ps233/products_password_recovery09186a0080094795.shtml
QUESTION 36 You are a network technician at Cisco Highway. You have told a newly appointed trainee that the OSI model has 7 layers and that the Application layer is the highest layer. The trainee is curious as to which protocols operate at the application layer. What should you tell him? (Choose all that apply.)
A. TCP
B. Telnet
C. FTP
D. ARP
E. IP Answer: B C Explanation: Layer Name Examples
Application (layer 7) Telnet, HTTP, FTP, WWW browsers, NFS, SMTP gateways, SNMP Reference: CCNA Self-Study CCNA INTRO exam certification Guide (Cisco press, ISBN 1-58720-094-5) Page 34
QUESTION 37 You are a network technician at Cisco Highway. Cisco Highway has its head office in Berlin and a branch office in Bonn. You are troubleshooting the WAN link between head office and the branch office. You replace a Cisco router that was providing Frame Relay connectivity at the Bonn site with a frame relay router from a different vendor. However, connectivity broke down between the two offices. What is the most likely cause of the problem?
A. Mismatched LMI types.
B. Incompatible encapsulation types.
C. Mismatching IP addresses.
D. Incorrect DLCI. Answer: A Explanation: Three LMI protocol options are available in Cisco IOS software: Cisco, ITU, and ANSI. Each LMI option is slightly different and therefore is incompatible with the other two. As long as both the DTE and DCE on each end of an access link use the same LMI standard, LMI works fine. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page 381
QUESTION 38 You are a network administrator at Cisco Highway. You need to configure five new routes urgently for testing purposes. While connected to a router by console, you copy and past a configuration from a text file into the HyperTerminal window. Part of the text file is shown in the following exhibit: As a result of this procedure, host 192.168.10.10/29 would not be able to ping the Ethernet interface of the router. Why?
A. The new configuration must be saved to the NVRAM before the changes can be effected.
B. The subnet mask on the router results is miscommunication.
C. The Ethernet network does not feature in the routing table due to incomplete RIP configuration.
D. The copied configuration did not overwrite the shutdown command on the Ethernet interface.
E. The router needs to be rebooted before the changes are effected. Answer: D Explanation: Default configuration of any interface is always shutdown and always needs the command "no shutdown" in the interface command mode in order to enable the interface. Reference: CCNA Self-Study CCNA INTRO exam certification Guide (Cisco press, ISBN 1-58720-094-5) Page 379
QUESTION 39 You are a network administrator at Cisco Highway. The Cisco Highway network has three remote networks are accessed through serial 0/0 interface on the Cisco Highway1 router. The remote networks are: 172.16.10.0, 172.16.20.0, and 172.16.30.0. However, users cannot access 172.16.20.0. You are troubleshooting the problem. You issue the debug ip rip and show ip route commands. The output form the command is shown in the following exhibit: Cisco Highway1# debug ip rip ld00h: RIP:received vl update from 172.16.100.2 on Serial0/0 ld00h: 172.16.10.0 in 1 hops ld00h: 172.16.20.0 in 1 hops ld00h: 172.16.30.0 in 1 hops Cisco Highway1# show ip route Gateway of last resort is not set 172.16.0.0/24 is subnetted, 8 subnets C 172.16.150.0 is directly connected, FastEthernet0/0 C 172.16.220.0 is directly connected, Loopback2 C 172.16.210.0 is directly connected, Loopback1 C 172.16.200.0 is directly connected, Loopback0 R 172.16.30.0 [120/1] via 172.16.100.2, 00:00:07, Serial0/0 S 172.16.20.0 [1/0] via 172.16.150.15 R 172.16.10.0 [120/1] via 172.16.100.2, 00:00:07, Serial0/0 C 172.16.100.0 is directly connected, Serial0/0 What is the most likely cause of the problem?
A. 172.16.20.0 is not located in Cisco Highway1's routing table.
B. There is no gateway of last resort on Cisco Highway1.
C. The static route for 172.16.20.0 is incorrect.
D. The Cisco Highway1 router is not receiving 172.16.20.0 updates. Answer: C Explanation The static route of 172.16.20.0 is incorrect. The show ip route shows that the network is connected via 172.16.150.15 instead of 172.16.100.2.
QUESTION 40 You have subnetted the 213.105.72.0 network with a /28 mask. How many usable subnetworks and usable host addresses per subnet will be provided?
A. 2 networks with 62 hosts
B. 6 networks with 30 hosts
C. 16 networks and 16 hosts
D. 62 networks and 2 hosts
E. 14 networks and 14 hosts Answer: E Explanation A subnet with a 28 bit mask requires 4 bits for the network address, leaving 4 bits for host addresses. Using the 2^n - 2 formula (2^4 - 2 in this case) we have 14 host addresses and 14 network addresses.
QUESTION 41 You are a network technician at Cisco Highway, Inc. You are currently troubleshooting a Cisco router. You issue the show ip route command. The output from the command is displayed in the following exhibit: Cisco Highway1#show ip route Codes: C - connected, S - static, I - IGRP, R- RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inner areaE1 - OSPF external type 1, E2 - OSPF external type 2, E - EGPi - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - Candidate defaultU - per-user static route
Gateway of last resort is not set R 192.168.8.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0 C 192.168.9.0/24 is directly connected, Serial1 R 192.168.10.0/24 [120/7] via 192.168.9.1, 00:00:02, Serial1 R 192.168.11.0/24 [120/7] via 192.168.9.1, 00:00:03, Serial1 C 192.168.1.0/24 is directly connected, Ethernet0 C 192.168.2.0/24 is directly connected, Serial0 R 192.168.3.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0 R 192.168.4.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0 R 192.168.5.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0 R 192.168.6.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0 R 192.168.7.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0 Which route will not be entered into the routing table of a neighboring router?
A. R 192.168.11.0/24 [120/7] via 192.168.9.1, 00:00:03, Serial1
B. C 192.168.1.0/24 is directly connected, Ethernet0
C. R 192.168.8.0/24 [120/1] via 192.168.2.2, 00:00:10, Serial0
D. R 192.168.5.0/24 [120/15] via 192.168.2.2, 00:00:10, Serial0 Answer: D Explanation: RIP has the maximum hop count of 15. This route already has a hop count of 15 and adding one would make it unreachable (see below). This route will be discarded. R 202.30.5.0/24 [120/15] via 202.30.2.2, 00:00:10, Serial0
QUESTION 42 You are a network technician at Cisco Highway, Inc. You have subnetted the 201.105.13.0 network with a /26 mask. How many usable subnetworks and usable host addresses per subnet will be provided?
A. 4 networks with 64 hosts
B. 64 networks and 4 hosts
C. 2 networks and 62 hosts
D. 62 networks and 2 hosts
E. 6 network and 30 hosts Answer: C Explanation A subnet with a 26 bit mask requires 2 bits for the network address, leaving 6 bits for host addresses. Using the 2^n - 2 formula (2^2 - 2 for the network and 2^6 - 2 for hosts) we have 2 network addresses and 62 host addresses.
QUESTION 43 You are a network technician at Cisco Highway, Inc. Your Cisco Highway trainee is studying the spanning tree algorithm and wants to know what the default mechanism for determining the spanning-tree path cost is. What would your reply be?
A. Statically determined by the administrator.
B. Sum of the costs based on bandwidth.
C. Total hop count.
D. Sum of the cost based on latency. Answer: B Explanation The metrics of STP is determined by bandwidth.
QUESTION 44 You are a trainee technician at Cisco Highway, Inc. You need to display your knowledge of the Spanning-Tree algorithm. Connect the Spanning-Tree Protocol states with the correct functions. (Not all options are used.)
Answer:
Explanation:
Listening - Listens to incoming Hello messages to ensure that there are no loops, but does not forward traffic or learn MAC addresses on the interface.
Learning -learns MAC addresses and builds a filter table but does not forward frames.
Forwarding - Sends and receives all data on the bridged port.
Blocking - are used to prevent network loops. Reference: CCNA Study guide Second Edition (Sybex, Todd Lammle) page 82
QUESTION 45 You are a network technician at Cisco Highway, Inc. You are required to establish a Telnet session with a cisco router. Which of the following commands should you use?
A. Cisco Highway1(config)# line console 0 Cisco Highway1(config-if)# enable password Cisco Highway
B. Cisco Highway1(config)# line vty 0 Cisco Highway1(config-line)# enable password Cisco Highway
C. Cisco Highway1(config)# line vty 0 Cisco Highway1(config-line)# enable secret Cisco Highway Cisco Highway1(config-line)# login
D. Cisco Highway1(config)# line console 0 Cisco Highway1(config-line)# enable secret Cisco Highway Cisco Highway1(config-line)# login
E. Cisco Highway1(config)# line console 0 Cisco Highway1(config-line)# password Cisco Highway Cisco Highway1(config-line)# login
F. Cisco Highway1(config)# line vty 0 Cisco Highway1(config-line)# password Cisco Highway Cisco Highway1(config-line)# login Answer: F Explanation: Access from Password Type Configuration Telnet vty password line vty 0 4 login password cisco Reference: CCNA Self-Study CCNA INTRO exam certification Guide (Cisco press, ISBN 1-58720-094-5) Page 177
QUESTION 46 You are a network technician at Cisco Highway, Inc. Cisco Highway has recently opened a third office in a foreign country and bought a router to connect this office to the other two already on the network. The names of the routers are Cisco Highway1, Cisco Highway2, and Cisco Highway3. Configure the Cisco Highway3's router's IP addresses on the E0 and S1 interfaces so that the E0 interface receives the first usable subnet while the S1 interface receives the second usable subnet from the network 192.168.101.0/28. Both interfaces should receive the first available IP of the subnet. The zero subnet should not be used. The routers have been configured with the following specifications. The routers are named Cisco Highway1, Cisco Highway2, and Cisco Highway3. RIP is the routing protocol. Clocking is provided on the serial 0 interfaces The secret password on the Cisco Highway3 router is "Cisco Highway" The subnet mask of all networks other than 192.168.101.0 is the default mask. The IP addresses are listed in the chart below. Cisco Highway1 E0 192.168.93.1 S0 192.168.95.1 Cisco Highway2 E0: 192.168.97.1 S0: 192.168.101.42 S1: 192.168.95.2 Cisco Highway3 E0 to be determined S1 to be determined Secret password: Cisco Highway Click on the host icon that is connect to a router by a serial console cable to configure the router. Answer: Cisco Highway3> enable Password: Cisco Highway Cisco Highway3 # config terminal Cisco Highway3 (config) # interface ethernet 0 (Shorthand: int e 0) Cisco Highway3 (config-if) # ip address 192.168.101.17 255.255.255.240 Cisco Highway3 (config-if) # no shutdown Cisco Highway3 (config-if) # exit Cisco Highway3 (config-) # interface serial 1 (Shorthand: int s 1) Cisco Highway3 (config-if) # ip address 192.168.101.33 255.255.255.240 Cisco Highway3 (config-if) # no shutdown Cisco Highway3 (config-if) # CTRL+Z Cisco Highway3 # copy running-config startup-config Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page 165 CCNA Self-Study CCNA INTRO exam certification Guide (Cisco press, ISBN 1-58720-094-5) Page 486
QUESTION 47 You are a network technician at Cisco Highway, Inc. You are planning a network installation for the company. The design requires 100 separate subnetworks, resulting in the acquisition of a Class B network address. Which of the following subnet masks will provide the 100 subnetworks required, if 500 usable host addresses are required per subnet?
A. 255.255.0.0
B. 255.255.224.0
C. 255.255.254.0
D. 255.255.255.0
E. 255.255.255.224
F. 255.255.255.254 Answer: C Explanation: We need a 9-bit subnet mask to provide 500 usable host addresses.
QUESTION 48 What is the function of access control lists (ACLs)? (Choose all that apply.)
A. Monitor the number of bytes and packets.
B. Assume role off virus detector.
C. Identify interesting traffic for DDR.
D. IP route filtering.
E. Provide high network availability.
F. Classify and organizing network traffic. Answer: C, D, E Explanation: IP access control lists (ACLs) cause a router to discard some packets based on criteria defined by the network engineer. The goal of these filters is to prevent unwanted traffic in the network - whether to prevent hackers from penetrating the network or just to prevent employees from using systems they should not be using. IP access lists can also be used to filter routing updates, to match packets for prioritization, to match packets for prioritization, to match packets for VPN tunneling, and to match packets for implementing quality of service features. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page 427
QUESTION 49 What could you use to prevent rooting loops in the network when configuring the network using a distance vector routing protocol? (Choose all that apply.)
A. Spanning Tree Protocol
B. Shortest path first tree
C. Link-state advertisements (LSA)
D. Hold-down timers
E. Split horizon
F. VRP Answer: D E Explanation:
Split horizon - the routing protocol advertises routes out an interface only if they were not learned from updates entering that interface.
Hold-down timer - After finding out that a router to a subnet has failed, a router waits a certain period of time before believing any other routing information about that subnet. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page 154 QUESTION 50 All routers are running RIP. Which of the following statements describe how the routers exchange their routing tables? (Choose all that apply.)
A. Cisco Highway4 exchanges with Cisco Highway3.
B. Cisco Highway4 exchanges with Cisco Highway2.
C. Cisco Highway4 exchanges with Cisco Highway1.
D. Cisco Highway1 exchanges with Cisco Highway3.
E. Cisco Highway1 exchanges with Cisco Highway2.
F. Cisco Highway1 exchanges with Cisco Highway4. Answer: A, D Explanation RIP exchanges routing tables with their adjacent neighbors. Therefore, Cisco Highway3 will exchange routes with Cisco Highway1, Cisco Highway2 and Cisco Highway4. Similarly, Cisco Highway1 will exchange routes with Cisco Highway3; Cisco Highway2 will exchange routes with Cisco Highway3; and Cisco Highway4 will exchange routes with Cisco Highway3.
QUESTION 51 Which of the following encapsulations can be used when configuring a serial interface on a Cisco router? (Choose all that apply.)
A. Token Ring
B. Ethernet
C. HDLC
D. PPP
E. Frame Relay
F. CHAP Answer: C, D, E
QUESTION 52 You are a network technician at Cisco Highway. Cisco Highway has a class C network license. The company requires 5 usable subnets. Each subnet must accommodate at least 18 hosts. Which network mask should you use?
A. 225.225.224.0.
B. 225.225.240.0.
C. 225.225.255.0.
D. 255.255.255.224
E. 225.225.255.240 Answer: 255.255.255.224 Explanation: Default subnet mask for class C network is 255.255.255.0. If one has to create 5 subnets, then 3 bits are required. With 3 bits we can create 6 subnets. Remaining 5 bits are used for Hosts. One can create 30 hosts using 5 bits in host field. This matches with requirement.
QUESTION 53 You are a network technician at Cisco Highway, Inc. The Cisco Highway network topology is shown in the following exhibit: Each host is connected through its own 10Mbps half-duplex switch port to the e0 interface of the router Cisco Highway1. What is the bandwidth available to each host?
A. 1 Mbps
B. 10 Mbps
C. 20 Mbps
D. 100 Mbps
E. 120 Mbps Answer: B
QUESTION 54 Three sites, Cisco Highway1, Cisco Highway2, and Cisco Highway3 are connected via a WAN. At each site a router provides serial connectivity to the Wan and an Ethernet connection to a LAN. All three routers are configured, and the network is functional. Configure and apply an access list that will prevent telnet access to the Cisco Highway1 router while allowing all other traffic to pass. The access list should not contain more than three (3) statements and should be applied to the Cisco Highway1 router. The routers have been previously configured with the following specifications: The routers are named Cisco Highway1, Cisco Highway2, and Cisco Highway3. RIP is the routing protocol. The clocking signal is provided on the serial 0 interfaces. All passwords on all routers are "Cisco Highway". The subnet mask on all the interfaces is the default mask. IP addresses are listed in the chart below. Cisco Highway1 E0 192.168.149.1 S0 192.168.199.1 Secret password: Cisco Highway Cisco Highway2 E0 192.168.155.1 S0 192.168.11.1 S1 192.168.199.2 Secret password: Cisco Highway Cisco Highway3 E0 192.168.165.1 S1 192.168.11.2
To configure the router click on the host icon that is connected to a router by a serial console cable. Answer: Cisco Highway1>enable Password: Cisco Highway1#show access-lists Cisco Highway1#config t Enter configuration commands, one per line. End with END. Cisco Highway1(config)#access-list 101 deny tcp any 192.168.149.1 0.0.0.0 eq 23 Cisco Highway1(config)#access-list 101 deny tcp any 192.168.199.1 0.0.0.0 eq 23 Cisco Highway1(config)#access-list 101 permit ip any any Cisco Highway1(config)#interface Ethernet 0 Cisco Highway1(config-if)#ip access-group 101 in Cisco Highway1(config-if)#exit Cisco Highway1(config)#interface serial 0 Cisco Highway1(config-if)#ip access-group 101 in Cisco Highway1(config-if)# .. Cisco Highway1#copy running-config startup-config Destination filename [startup-config]? Building configuration.... [OK] Cisco Highway1#
QUESTION 55 You are a network technician at Cisco Highway, Inc. You have completed the password recovery procedure on a Cisco router successfully and the router returned to normal operation. What is configuration register value at this point in time?
A. 0x2112
B. 0x2104
C. 0x2102
D. 0x2101
E. 0x2100 Answer: C Explanation: It is default factory setting. Router should attempt to load an IOS from flash memory and load startup configuration file. Flash memory also called NVRAM Incorrect answers
A: It is ROM Monitor mode. A low level problem determination
B: Router to boot from ROM
D: The value 0x2142 to be set for configuration register in case of password recovery procedure
QUESTION 56 You are a network technician at Cisco Highway, Inc. You are using a switch to break up a broadcast domain. Which features of the switch enables this?
A. Transparent bridging
B. Cut-through bridges
C. Fragment-free switches
D. Micro segmentation
E. Virtual LANs
F. Store-and-forward switching Answer: E Explanation: Creation of VLAN in a switch provide separate Broadcast domain . If VLAN is not there all ports as members of one Broadcast domain. Reference: Wendell Odom. CISCO CCNA Certification Guide ( 2000 Press) Page 172 Incorrect Answers
A: Transparent bridging is called Transparent because the endpoints devices do not need to know that the bridges exists. It will not play any role for creating separate broadcast domain B,D: Both are switching methods in a switch.
C: This is one of the Switching methods in a switch. It will not play any role for creating separate broadcast domains
F: Not related to the question
QUESTION 57 To upgrade a network, emphasis must be placed on efficiency and error-free transport rather than fast transport. For this purpose, new switches had been purchased. Which switching mode should be configured on these new switches to have the desired effect? 802.1q forwarding VTP transparent mode cut-through store-and-forward fragment-free frame-filtering Answer: D Explanation: The Switch receives and stores all bits in the frame before forwarding the frame. This allows switch to check the FCS before forwarding the frame. FCS is Ethernet Trailer. Incorrect answers:
E. The Switch performs the address table lookup as soon as the destination address field in the header is received. The first bits in the frame can be sent out to out port before the final bits in the incoming frame are received. This does not allow the switch to discard frames that fail the FCS check. This is also same as C. But Switch waits 64 bytes to be received before forwarding the first bytes of the outgoing frame. Collisions may occur during first 64 bytes of the frame. Frames in error due to collision will not be forwarded. The FCS still
cannot be checked. B, D, F: They are not related to Switch mode transport.
QUESTION 58 Which of the following addresses can be assigned to network hosts when given a subnet mask of 255.255.255.224? (Choose all that apply.)
A. 15.234.118.63
B. 92.11.178.93
C. 134.178.18.56
D. 192.168.16.87
E. 201.45.116.159
F. 217.63.12.192 Answer: B, C, D Explanation:
B: Valid Host in subnetwork 2 ( 92.11.178.64 to 92.11.178.95)
C: Valid Host in subnetwork 1(134.178.18.32 to 134.178.18.63)
D:Valid host in subnetwork 2 (192.168.16.64 to 192.168.16.95 Incorrect answers:
A.is a broadcast
E.is a broadcast
F.is a network id
QUESTION 59 Documenting the name of the IOS image file of each router in the network is part of updating network documentation. Which of the following commands can be used to obtain this information?
A. Router# show IOS
B. Router# show version
C. Router# show image
D. Router# show protocols
E. Router# show flash Answer: B Explanation: "Show flash" displays all the image files in it. There could be more than one file. However, "show version" displays the one that is currently in use by the router. Incorrect answers:
D: Show Protocols will shows routed Protocol using by the router, all interface conditions and their IP address if configured. A,C: There are no such commands.
QUESTION 60 Which of the following statements describes the rule of split horizon?
A. Only routers can split boundaries (horizons) between concentric networks.
B. Each AS must keep routing tables converged to prevent dead routes from being advertised across boundaries.
C. Networks can only remain fully converged if all information is sent out all active interfaces.
D. Information about a route should not be sent back in the direction from which the original update came.
E. Distance vector protocols need fall back routers that are responsible for momentary loops.
Answer: D Explanation: Split horizon includes two related concepts that affect what routes are included in a routing update: An update does not include the subnet of the interface out which the update is sent All routes with outgoing interface of interface x are not included in updates sent out that same interface x. Incorrect Answers
A: There is no such requirement
E: Distance vector protocols updates routing table at regular intervals instead of Topology changes
C: This is not a feature of split horizon
B: This is not a related feature for split horizon Reference: Wendell Odom. CISCO CCNA Certification Guide ( 2000 Press) Page 369
QUESTION 61 You are a network technician at Cisco Highway, Inc. The Cisco Highway network is shown in the following exhibit: SPIDs are not required for this switch. Which of the following configuration commands are the minimum commands required to bring up the ISDN link? (Choose all that apply.)
A. Router(Config-if)# ip address subnet mask
B. Router(Config-if)# dialer-list, protocol ip permit
C. Router(Config-if)# isdn switch-type type
D. Router(Config-if)# dialer map ip address name connection number.
E. Router(Config-if)# encapsulation ppp
F. Router(Config-if)# dialer group 1 Answer: A, E, F Explanation:
A: IP address to be assigned for interface with subnet mask
E: Proper encapsulation to be defined on both routers.
F: Dialer group number enables dialer-list on this interface. Dialer-list to be defined in a global configuration command. Incorrect Answers: B, C: The commands are executed on global configuration command.
D: Syntax is wrong. Proper syntax is dialer map ip address/subnet mask name connection name number.
QUESTION 62 Which of the following features are PPP characteristics? (Choose all that apply.)
A. Encapsulates several different types of routing protocols.
B. Supports only IP.
C. Can be used over analog circuits.
D. Maps Layer addresses.
E. Corrects errors. Answer: A C E Explanation:
PPP can be used on either type of line (dial or switched lines), because data-link protocols are designed for point-to-point environment.
PPP uses one LCP per link and one Control Protocol for each Layer 3 protocol defined on the link. If a router is configured for IPX, Apple Talk, and IP on a PPP serial link, the router configured for PPP encapsulation automatically tries to bring I the appropriate control protocols for each layer 3 protocol.
Error recovery can be performed by the data-link protocol or a higher-layer protocol, or it might not be performed at all. Supported but not enabled by default. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page 309
QUESTION 63 You are a network technician at Cisco Highway, Inc. You are troubleshooting a connectivity problem. You issue the ping command during a router console session. Your trainee wants to know what the ping command use to test connectivity between the two devices. What would your reply be?
A. ICMP echo request
B. Information interrupt request
C. Timestamp reply
D. Source quench Answer: A Explanation: The ping command sends an ICMP echo request packet to the stated destination address. The TCP/IP software at the destination then replies to the ping echo request packet with a similar packet, called ICMP echo reply. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page 146
QUESTION 64 You are a network technician at Cisco Highway, Inc. You must assign static IP addresses to the servers in the Cisco Highway network. For network 192.168.20.24/29 the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP properties box for the sales server?
A. IP address: 192.168.20.14 Subnet Mask: 255.255.255.248 Default Gateway: 192.168.20.9
B. IP address: 192.168.20.254 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.20.1
C. IP address: 192.168.20.30 Subnet Mask 255.255.255.248 Default Gateway: 192.168.20.25
D. IP address: 192.168.20.30 Subnet Mask 255.255.255.240 Default Gateway: 192.168.20.17
E. IP address: 192.168.20.30 Subnet Mask 255.255.255.240 Default Gateway: 192.168.20.25 Answer: C Explanation A subnet mask uses 29 bits. This means that it uses 5 bits in the 4th octet. This equates to 255.255.255.248. This network has 3 bits for hosts. Using the 2^n - 2 formula (2^3 -2 in this case), we are left with 6 (2*2*2 - 2 = 6) host addresses. 192.168.20.24 is the network address. Therefore the next address (192.168.20.25) would be the first host address. This address must be assigned to the router, which serves as the gateway for the network. The last available host address would be 192.168.20.30 (192.168.20.24+6). This address is assigned to the server.
QUESTION 65 Which of the following statements regarding the store and forward switching method are true? (Select two options.)
A. Latency fluctuates regardless of frame size.
B. The switch receives the complete frame before beginning to forward it.
C. Latency through the switch varies with frame length.
D. The switch checks the destination address upon receipt of headers. Answer: B C Explanation: With store-and-forward, the entire frame is received by the switch before the first bit of the frame is forwarded. As soon as the incoming switch port receives enough of the frame to see the destination MAC address, the forwarding decision is made and the frame is transmitted out the appropriate outgoing port to the destination device. So, each frame might experience slightly less latency. Reference: CCNA Self-Study CCNA INTRO exam certification Guide (Cisco press, ISBN 1-58720-094-5) Page 243
QUESTION 66 Match the hex and decimal numbers on the left with the corresponding binary number on the right. Please note:
Explanation: 170 (Decimal) = 10101010 192 (Decimal) = 11000000 F1 (241 = Decimal) = 11110001 9F (159 = Decimal) = 10011111 Reference: http://www.cisco.com/en/US/products/hw/switches/ps2246/products_programming_reference_guide_chapter09 186a00800c33e4.html
QUESTION 67 You are a network technician at Cisco Highway, Inc. You are configuring the routing protocol on the Cisco Highway3 router to allow a host on the LAN to communicate with a host on the Cisco Highway2 router, where the Cisco Highway3 router is an addition to and already configured network that includes Cisco Highway1 and Cisco Highway2, each with one LAN respectively. The routers have been configures as follows:
The routers are named Cisco Highway1, Cisco Highway2, and Cisco Highway3.
RIP is the routing protocol
The clocking is provided on the serial 0 interfaces.
The secret password on the Cisco Highway3 router is "Cisco Highway"
The subnet masks on all interfaces is the default mask.
The IP addresses are listed in the chart Cisco Highway1 E0 192.168.149.1 S0 192.168.179.1 Cisco Highway2
E0 192.164.155.1 S0 192.168.111.1 S1 192.168.179.2 Cisco Highway3 E0 192.168.165.1 S1 192.111.2
To configure the router click on a host icon that is connected to a router by a serial cable. Answer: Cisco Highway3>enable Password: Cisco Highway3#config t Cisco Highway3(config)#router rip Cisco Highway3(config-router)#network 192.168.165.0 Cisco Highway3(config-router)#network 192.168.111.0 Cisco Highway3(config)# Ctrl-Z **Output omitted** Cisco Highway3#copy running-config startup-config **Output omitted** [OK] Cisco Highway3#_
QUESTION 68 Which of the following statements are characteristic of a typical VLAN arrangement? (Choose all that apply.)
A. VLANs logically divide a switch into multiple, independent switches at Layer 2.
B. Trunk links can carry traffic for multiple VLANs.
C. VLAN implementation significantly increases traffic due to adding trunking information.
D. A VLAN can span multiple switches.
E. VLANs extend the collision domain to include multiple switches.
F. VLANs typically decrease the number of multiple switches. Answer: A, B, D
QUESTION 69 Which of the following options can be negotiated using LCP during the PPP link establishment? (Select three options.)
A. Q.931
B. IPCP
C. multilink
D. CHAP
E. callback Answer: C D E Explanation: LCP options are: Authentication, Compression, Error Detection, Multilink, and PPP Callback. With that said, C, D, E are all correct. Not B: IPCP has nothing to do with LCP. IPCP is part of NCP and is in used to encapsulate IP over a PPP serial connection.
QUESTION 70 Match the ISDN term on the right to the appropriate description on the left. Please note: Not all options on the left apply. Answer:
Explanation:
LAPD - provides the data link protocol that allows delivery of messages across that D-channel to the local switch.
LAPB - Protocol and is designed primarily to satisfy the signaling requirements of ISDN basic access. It is defined by ITU-T Recommendations Q.920 and Q.921.
TE1 - ISDN -capable four-wire cable. Understands signaling and 2B=D. Uses an S reference point.
ITU.T.430 - Defines connectors, encoding, framing, and reference points.
TE2 - Equipment that does not understand ISDN protocols and specifications (no ISDN awareness). Uses an R reference point, typically an RS-232 or V.35 cable, to connect to a TA.
NT1 - CPE equipment in North America. Connects with a U reference point (two-wire) to the telco. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page Chapter 10
QUESTION 71 You are the network administrator at Cisco Highway, Inc. Cisco Highway's network topology is shown in the following exhibit: You can telnet to all of the routers. An employee named Jack has moved office and finds herself on a different floor. You need the address of Switch Cisco Highway5 to verify that the employee who moved office remains in the same VLAN. What can you do to determine the IP address of Cisco Highway5?
A. Issue the show ip route command on Router Cisco Highway1.
B. Issue the show cdp neighbors detail command on Router Cisco Highway2.
C. Issue the show arp command on Router Cisco Highway3.
D. Issue the show cdp neighbors detail command on Router Cisco Highway3.
E. Issue the show arp command on Router Cisco Highway1.
F. Issue the show ip route command on Router Cisco Highway2. Answer: D Explanation: To display detailed information about neighboring devices discovered using Cisco Discovery Protocol (CDP), use the show cdp neighbors privileged EXEC command. Detail - (Optional) Displays detailed information about a neighbor (or neighbors) including network address, enabled protocols, hold time, and software version. Reference: http://www.cisco.com/en/US/products/sw/iosswrel/ps1831/products_command_reference_chapter09186a00800 d983f.php#1019534
QUESTION 72 You are a network technician at Cisco Highway, Inc. The Cisco Highway network is shown in the following exhibit:
You must configure the address on the Cisco Highway2 serial interface. Which of the following commands will you use?
A. Cisco Highway2(config-if)# ip address 172.16.17.1 255.255.255.0
B. Cisco Highway2(config-if)# ip address 172.16.18.2 255 255.255.252.0
C. Cisco Highway2(config-if)# ip address 172.16.17.2 255.255.255.252
D. Cisco Highway2(config-if)# ip address 172.16.16.0 255.255.255.0 Answer: C Explanation: The address 172.16.17.0/22 is in the 172.16.16.0/22 network. This means that the IP addresses in all four answers are valid. However, the /22 subnet mask equals 255.255.252.0 in decimal. Therefore, answer C is correct.
QUESTION 73 You are a network technician at Cisco Highway, Inc. You received reports that users on the Cisco Highway2 Ethernet site cannot access the Cisco Highway1 network site. You issue the show running-config command. The output form the command is shown in the following exhibit:
After reviewing the command output, what is the most likely cause of the problem?
A. Link state routing protocol is missing.
B. Incorrectly configured IP addresses
C. IGRP is incorrectly configured.
D. Frame relay is not configured. Answer: C Explanation: router igrp To configure the Interior Gateway Routing Protocol (IGRP) routing process, use the router igrp global configuration command. To shut down an IGRP routing process, use the no form of this command. router igrp autonomous-system autonomous-system- Autonomous system number that identifies the routes to the other IGRP routers. It is also used to tag the routing information. Reference: http://www.cisco.com/en/US/products/sw/iosswrel/ps1828/products_command_summary_chapter09186a00800 f0ab0.php#3674
QUESTION 74 You are a network technician at Cisco Highway, Inc. You add a new workstation to the Cisco Highway network to accommodate a new employee. The relevant section of the Cisco Highway network is shown in the following exhibit: The employee is unable to connect to the server Cisco HighwayA at IP address 192.168.10.98/27. Can you identify the incorrectly configured network parameter in the workstation configuration?
A. IP address of the Ethernet 0 router interface
B. Server
C. Workstation default gateway
D. Workstation subnet mask
E. Workstation IP address Answer: C Explanation: The default gateway of the host (192.168.10.64) is wrong. 192.168.10.64 is the network address of the host's network in this question. The default gateway should be the address of the local interface of the router. In this case: 192.168.10.65. Incorrect Answers:
A: The IP address of the Eternet0 interface is valid.
B: The IP address of the server is valid.
D: The network uses a 27 bit subnet mask which equates to 255.255.255.224.
E: The IP host address 192.168.10.66 is a valid host address on the subnet.
QUESTION 75 You are a network technician at Cisco Highway. Your trainee asks you what 11111000 binary is in decimal. What would your reply be?
A. 220
B. 224
C. 240
D. 248
E. 256 Answer: D Explanation: 128 + 64+32+16+8 = 248 Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page 559
QUESTION 76 You are a network technician at Cisco Highway, Inc. You received a report that users on the 172.17.22.0 network are unable to reach the server located on the 172.31.5.0 network. You connected to router Cisco Highway1 via the console port, issued the show ip route command, and could ping the server. The network topology and the output from the show ip route is shown in the following exhibit: 172.17.22.0 172.31.5.0 What is the cause of this problem?
A. The FastEthernet interface is disabled.
B. The neighbor relationship table is not updated.
C. A static route is configured incorrectly.
D. The routing table on Cisco Highway1 is not updated.
E. IP routing is not enabled. Answer: C
QUESTION 77 You are a network technician at Cisco Highway, Inc. The router topology for the Cisco Highway network is shown in the following exhibit:
Cisco Highway2 and Cisco Highway3 are configured for RIPv1 and have complete connectivity. Cisco Highway1 was recently added to the network. You want Cisco Highway1 to have full connectivity as well. What would then be the most appropriate Cisco Highway1 configuration?
A. Cisco Highway1(config)# router rip Cisco Highway1(config-router)# network 10.0.0.0 Cisco Highway1(config-router)# network 172.16.0.0 Cisco Highway1(config-router)# network 192.168.1.0
B. Cisco Highway1(config)# router rip Cisco Highway1(config-router)# network 10.0.0.0 Cisco Highway1(config-router)# network 192.168.1.0
C. Cisco Highway1(config)# router rip Cisco Highway1(config-router)# network 10.0.0.0 Cisco Highway1(config-router)# network 172.16.0.0
D. Cisco Highway1(config)# router rip Cisco Highway1(config-router)# network 10.0.0.0 Answer: C Explanation: When configuring RIP you configure DIRECTLY CONNECTED NETWORKS TO THE ROUTER. Not A: A insinuates when configuring rip on a router every possible network should be configured in the interface. This is not the case. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) page 167
QUESTION 78 You are a network technician at Cisco Highway, Inc. You are required to troubleshoot a network connectivity problem. While busy, you observe steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out" is displayed. At which layer of the OSI model does this problem reside?
A. The data link layer
B. The application layer
C. The access layer
D. The session layer
E. The network layer Answer: E Explanation: TCP/IP includes ICMP, a protocol designed to help manage and control the operation of a TCP/IP network. The ICMP protocol provides a wide variety of information about a network's health and operational status. Control message is the most descriptive part of a name. ICMP helps control and manage IP's work and therefore is considered part of TCP/IP's network layer. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) page 277
QUESTION 79 The Cisco Highway network is shown in the following exhibit: What is the function of the Frame Relay DLCI with regard to Cisco Highway1?
A. Defines the signaling standard between Cisco Highway1 and Cisco Highway2.
B. Classifies the encapsulation used between Cisco Highway1 and Cisco Highway2.
C. Identifies the circuit between Cisco Highway2 and the frame switch.
D. Classifies the circuit between Cisco Highway1 and Cisco Highway2.
E. Defines the signaling standard between Cisco Highway1 and the frame switch. Answer: C Explanation: Cisco Highway1 sends frames with DLCI, and they reach the local switch. The local switch sees the DLCI field and forwards the frame through the Frame Relay network until it reaches the switch connected to Cisco Highway2. The Cisco Highway2's local switch forwards the frame out of the access link to Cisco Highway2. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) Page 386
QUESTION 80 You are a network technician at Cisco Highway, Inc. The router topology for the Cisco Highway network is shown in the following exhibit: Cisco HighwayA is communicating with the server. What will be the source MAC address of the frames that Cisco HighwayA receives from the server?
A. The MAC address of router interface e0.
B. The MAC address of router interface e1.
C. The MAC address of Cisco HighwayA.
D. The MAC address of the server network interface. Answer: A
QUESTION 81 You work as network administrator at Cisco Highway Ltd. Cisco Highway has three different sites with one router at each site. The routers are named Cisco Highway1, Cisco Highway2, and Cisco Highway3. An assistant technician has configured all the routers, but no connectivity exists between the routers. You task is to identify all error(s) and make the necessary adjustment(s) to establish network connectivity. The routers have been configured with the following configuration:
They are named Cisco Highway1, Cisco Highway2, and Cisco Highway3.
RIP is the routing protocol
Clocking is provided on the serial 0 interface.
The password on each router is "Cisco Highway"
The subnet mask on all interfaces is the default subnet mask.
The IP addresses are listed in the chart below. Cisco Highway1 E0 192.168.3.1 S0 192.168.5.1 Cisco Highway2 E0 192.168.8.1 S0 192.168.11.1 S1 192.168.5.2 Cisco Highway3 E0 192.168.13.2 S1 192.168.11.2
To configure the router click on a host icon that is connected to the router by a serial console cable. Answer: Explanation: Click on Host 2: Router Cisco Highway1: Cisco Highway1> enable Password: Cisco Highway Cisco Highway1 # config terminal Cisco Highway1 (config) # interface ethernet 0 Cisco Highway1 (config-if) # ip address 192.168.3.1 255.255.255.0 Cisco Highway1 (config-if) # no shutdown Cisco Highway1 (config-if) # exit Cisco Highway1 (config) # interface serial 0 Cisco Highway1 (config-if) # ip address 192.168.5.1 255.255.255.0 Cisco Highway1 (config-if) # clock rate 64000 Cisco Highway1 (config-if) # no shutdown Cisco Highway1 (config-if) # exit Cisco Highway1 (config) # router rip Cisco Highway1 (config-router) # network 192.168.3.0 Cisco Highway1 (config-router) # network 192.168.5.0 Cisco Highway1 (config-router) # Ctrl-Z Cisco Highway1 # copy running-config startup-config Click on Host 4 Router Cisco Highway2: Cisco Highway2> enable Password: Cisco Highway Cisco Highway2 # config t Cisco Highway2 (config) # interface ethernet 0 Cisco Highway2 (config-if) # ip address 192.168.8.1 255.255.255.0 Cisco Highway2 (config-if) # no shutdown Cisco Highway2 (config-if) # exit Cisco Highway2 (config) # interface serial 0 Cisco Highway2 (config-if) # ip address 192.168.11.1 255.255.255.0 Cisco Highway2 (config-if) # clock rate 64000 Cisco Highway2 (config-if) # no shutdown Cisco Highway2 (config-if) # exit Cisco Highway2 (config) # interface serial 1 Cisco Highway2 (config-if) # ip address 192.168.5.2 255.255.255.0 Cisco Highway2 (config-if) # no shutdown Cisco Highway2 (config-if) # exit Cisco Highway2 (config) # router rip Cisco Highway2 (config-router) # network 192.168.8.0 Cisco Highway2 (config-router) # network 192.168.11.0 Cisco Highway2 (config-router) # network 192.168.5.0 Cisco Highway2 (config-router) # Ctrl-Z Cisco Highway2 # copy running-config startup-config Router Cisco Highway3: Click on Host F Cisco Highway3> enable Password: Cisco Highway Cisco Highway3 # config t Cisco Highway3 (config) # interface ethernet 0 Cisco Highway3 (config-if) # ip address 192.168.13.2 255.255.255.0 Cisco Highway3 (config-if) # no shutdown Cisco Highway3 (config-if) # exit Cisco Highway3 (config) # interface serial 1 Cisco Highway3 (config-if) # ip address 192.168.11.2 255.255.255.0 Cisco Highway3 (config-if) # clock rate 64000 Cisco Highway3 (config-if) # no shutdown Cisco Highway3 (config-if) # exit Cisco Highway3 (config) # router rip Cisco Highway3 (config-router) # network 192.168.13.0 Cisco Highway3 (config-router) # network 192.168.11.0 Cisco Highway3 (config-router) # Ctrl-Z Cisco Highway3 # copy running-config startup-config
QUESTION 82 What will be the calculated OSPF cost of an OSPF interface that has been configured with the bandwidth 64 command?
A. 1
B. 10
C. 64
D. 1562
E. 64000
F. 128000 Answer: D Explanation: The question states that OSPF interface has been configured with the bandwidth 64 command. The CCNA ICND written by Wendell Odom, CCIE #1624, page 209, it is stated that IOS defaults to use the formula 108/bandwidth, where bandwidth is the interface bandwidth, in kbps.
So doing the math you have: 100 000 000 / 64000 = 1562.5
QUESTION 83 You are a network technician at Cisco Highway, Inc. A newly appointed trainee wants to know what the purpose of DLCIs in Frame Relay is. What would your response be?
A. They determine the encapsulation type employed by the Frame Relay.
B. They identify the logical circuit between a local router and a Frame Relay WAN switch.
C. They represent the physical address of the router.
D. They represent the keepalives in the maintenance of PVC. Answer: B Explanation: Routers use the data-link connection identifier (DLCI) as the Frame Replay address, which identifies the VC over which the frame should travel. Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco press, ISBN 1-58720-083-X) page 377
QUESTION 84 Which of the following statements is true regarding the command sequence illustrated below? (Choose all that apply.) Cisco HighwayA(config)# interface loopback 0 Cisco HighwayA(config-if)# ip address 192.168.16.24 255.255.255.255
A. It creates a virtual, software only, interface.
B. It provides a way to test the convergence of OSPF routing updates.
C. The mask of 255.255.255.255 is called a host mask.
D. It uses a wildcard mask of 255.255.255.255.
E. It ensures that an interface is always active for OSPF processes.
F. These commands can only be issued to configure serial interfaces. Answer: A,C,E Explanation:
A : When the OSPF process starts, the Cisco IOS uses the highest local Ip addresses its OSPF router ID. If a loopback interface is configured, that address is used regardless of its value.
C : A 32-bit mask is sometimes called a host mask, because it specifies a single host and not a network or subnetwork. A wildcard mask of value 255.255.255.255 will not check any of the bit values in the IP address.
E : A loopback -derived router ID ensures stability because that interface is immune to link failure.
QUESTION 85 Which IEEE standards apply when a company wants to implement 1000mbps Ethernet? (Select two options)?
A. 802.3u
B. 802.3ae
C. 802.3ab
D. 802.3e
E. 802.3z
F. 802.3i Answer: C, E
IEEE 802.3z 1000BASE-SX. The 1000BaseT standard was released in June 1999, defined by IEEE 802.3ab. Incorrect Answer: On June 17, 2002 the IEEE 802.3ae specification for 10 Gigabit Ethernet was approved as an IEEE standard by the IEEE Standards Association (IEEE-SA) Standards Board. IEEE 802.3u 100BASE-TX
QUESTION 86 Which of the statements mentioned below describes the OSPF routing protocol? (Choose all that apply.)
A. It confines network instability to a single area of network.
B. It increases the routing overhead of the network
C. It supports VLSM
D. It routes between Autonomous Systems.
E. It allows extensive control of routing update Answer: A, C, E
QUESTION 87 Which field of frame id used by error detection schemes when checking on errors?
A. MTU
B. PDU
C. FCS
D. Flag
E. MAC
F. BRI Answer: C Explanation: The FCS is used for error checking. Reference: Todd Lammle's 4th edition study guide, Chapter 5 ip routing pages.
QUESTION 88 What are the options for Frame LMI types. (Choose all that apply.)
A. Q.931
B. IEEE
C. Cisco
D. IETF
E. Q933a
F. ANSI Answer: C, E, F
QUESTION 89 Which of the following addresses can be assigned to network hosts when given a subnet mask of 255.255.255.224? (Select three options.)
A. 201.45.116.159
B. 134.178.18.62
C. 192.168.16.91
D. 92.11.178.93
E. 217.63.12. 31
F. 15.234.118.63 Answer: B, C, D Explanation
B: Valid host in subnetwork 1 (134.178.18.32 to 134.178.18.63)
C: Valid host in subnetwork 3 (192.168.16.64 to 192.168.16.95)
D: Valid host in subnetwork 2 ( 92.11.178.64 to 92.11.178.95)
QUESTION 90 Which of the following commands will provide you with information regarding the Layer 3 configuration of directly connected router interfaces?
A. show ip links
B. show cdp neighbors
C. show cdp neighbors detail
D. show ip clients
E. show ip route Answer: C
QUESTION 91 Study the Exhibit below carefully:
A. 01100100.00001010.11101011.00100111
B. 10101100.00010010.10011110.00001111
C. 11000000.10100111.10110010.01000101 Which of the following statements regarding the IP addresses as illustrated in the exhibit above, are true? (Select three options.)
A. Address C is a public Class C address.
B. Address C is an exclusive Class C address.
C. Address B is a public Class B address.
D. Address A is a public Class A address.
E. Address B is a private Class B address.
F. Address A is an exclusive Class A address. Answer: A, D, E Explanation
QUESTION 92 Study the Exhibit below carefully: RouterA# show running-config interface serial0/0 bandwidth 64 ip address 172.16.100.2 255.255.0 encapsulation frame-relay frame-relay map ip 172.16.100.1 200 broadcast
The Hong Kong office with Router Cisco Highway1, has a communication problem with the Tokyo branch office which has Router Cisco Highway2. The scenario is the following: Router Cisco Highway1 is unable to reach Router Cisco Highway2. Both routers are running IOS version 12.0. After reviewing the command output and graphic, your boss wants to know what is the most probable cause of the problem. What should you tell him?
A. Bandwidth configuration incorrect
B. IP address not correct
C. Improper map statement
D. Improper LMI configuration Answer: C Explanation
QUESTION 93 Study the Exhibit below carefully:
Using the information in the exhibit above, which of the following command lines would configure the serial0 port on the Cisco Highway2 router with the least usable host address in the 192.168.32.32 subnet correctly?
A. Cisco Highway2(config-if)# ip address 192.216.32.63 255.255.255.248
B. Cisco Highway2(config-if)# ip address 192.216.32.38 255.255.255.240
C. Cisco Highway2(config-if)# ip address 192.216.32.39 255.255.255.248
D. Cisco Highway2(config-if)# ip address 192.216.32.63 255.255.255.248 no shut
E. Cisco Highway2(config-if)# ip address 192.216.32.39 255.255.255.248 no shut
F. Cisco Highway2(config-if)# ip address 192.216.32.38 255.255.255.248 Answer: F Explanation
QUESTION 94 You are a network administrator at Cisco Highway. The Cisco Highway network is illustrated in the following exhibit. Study it carefully:
Cisco Highway is acquiring a new Class C IP network. Which of the following subnet masks will provide one useful subnet for each department while still making allowance for enough usable host addresses per department as specified in the graphic?
A. 255.255.255.128
B. 255.255.255.192
C. 255.255.255.224
D. 255.255.255.240
E. 255.255.255.248
F. 255.255.255.252 Answer: C Explanation: The network currently consists of 5 networks and another network will be acquired. That gives us a total of 6 networks. This requires that we use 3 bits for the network address. Using the formula 2n-2 we get 6. This also leaves us with 5 bits for hosts, which gives us 30 hosts. Incorrect Answers:
A: Only 1 bit is required to give us 128 but 1 bit gives us only 0 subnets.
B: 2 bits are required to give us 192 but 2 bits gives us only 2 subnets. This is too few.
D: 4 bits are required to give us 240. This gives us 14 subnets. However we are left with 4 bits for hosts leaving us with 14 host addresses. Two of the networks require more than 14 hosts so this will not do.
E: 5 bits are required to give us 248. This gives us 30 subnets. However we are left with 3 bits for hosts leaving us with 6 host addresses. All the networks require more than 6 hosts so this will not do.
F: 6 bits are required to give us 252. This gives us 62 subnets. However we are left with 2 bits for hosts leaving us with 6 host addresses. This is too few.
QUESTION 95 Which of the following commands should you use if you were asked to apply an access list on a virtual terminal line of a router?
A. RouterCK(config-line)# access-class 10 in
B. RouterCK(config-if)# ip access-class 23 out
C. RouterCK(config-line)# access-list 150 in
D. RouterCK(config-if)# ip access-list 128 out
E. RouterCK(config-line)# access-group 15 out
F. RouterCK(config-if)# ip access-group 110inAnswer: B Explanation
QUESTION 96 What could be the rationale behind using passive-interface command when configuring a router?
A. Allows interfaces to share common IP addresses.
B. Allows an interface to remain up without the aid of keepalives.
C. Allows a router to send routing and not receive updates via that interface.
D. Allows a routing protocol to forward updates that is missing its IP address.
E. Allows a router to receive routing updates on an interface but not send updates via that interface. Answer: E Explanation: The passive-interface command is used to control the advertisement of routing information. The command enables the suppression of routing updates over some interfaces while allowing updates to be exchanged normally over other interfaces. With most routing protocols, the passive-interface command restricts outgoing advertisements only. However, when used with Enhanced Interior Gateway Routing Protocol (EIGRP), the effect is slightly different. This document demonstrates that use of the passive-interface command in EIGRP suppresses the exchange of hello packets between two routers, resulting in the loss of their neighbor relationship. This stops not only routing updates from being advertised, but it also suppresses incoming routing updates. This document also discusses the configuration required in order to allow the suppression of outgoing routing updates, while allowing incoming routing updates to be learnt normally from the neighbor. Reference: http://www.cisco.com/en/US/tech/tk365/tk207/technologies_tech_note09186a0080093f0a.shtml
QUESTION 97 You are a network administrator at Cisco Highway. You need to troubleshoot the Cisco Highway network shown in the exhibit. Study the Exhibit carefully: The host, CK1, is connected to the Cisco Highway1 LAN, but it cannot get access to resources on any of the other networks. The host's configuration is as follows: host address: .....192.168.166.45 subnet mask: ......255.255.255.240 default gateway: ..192.168.166.32 Then which of the following is the cause of the problem?
A. The default gateway is a broadcast address.
B. The default gateway is on a different subnet address as the host.
C. The IP address of the host is on a different subnet.
D. The host subnet mask is incompatible to the subnet mask of the attached router interface. Answer: A Explanation: The default gate should be the broadcast address. For this network, the broadcast address should be the last address, which should be 192.168.166.46. Incorrect Answers:
B: The default gateway is on the same network but it is a host address.
C: The host address is correct.
D: The subnet mask 255.255.255.240 uses 28 bits and is therefore correct.
QUESTION 98 What are the benefits of using a router to segment the network at a main office? (Select two options.)
A. Broadcasts are not forwarded across the router.
B. Broadcasts are eradicated.
C. Adding a router to the network decreases latency.
D. Filtering can occur based on Layer 3 information.
E. Routers are more efficient than switches. Answer: A, D Explanation Routers do not forward broadcast messages and therefore breaks up a broadcast domain. In addition, routers can be used to filter network information.
QUESTION 99 You are a network technician at Cisco Highway. Cisco Highway has a larger 172.12.0.0 network that you want to divide into subnets. You want each subnet to support 459 hosts. You also want to provide the maximum number of subnets. Which network mask should you use?
A. 225.225.0.0.
B. 225.225.128.0.
C. 225.225.224.0.
D. 225.225.254.0. Answer: 255.255.254.0 Explanation: To obtain 459 hosts the number of host bits will be 9. This can support a maximum of 512 hosts. Keep 9 bits for hosts means the last bit in the 3rd octet will be 0. This gives 255.255.254.0 as the subnet mask.
QUESTION 100 Your new junior Cisco Highway trainee, Rutger, has a problem with basic binary math. He must convert the binary number 10011101 into its decimal and hexadecimal equivalent. Which two numbers must Rutger provide? (Select two options)
A. 158
B. 0x9D
C. 156
D. 157
E. 0x19
F. 0x9F Answer: B D Explanation: 10011101 = 157 0x9D is ASCII Hexadecimal = 157 Reference: http://www.cisco.com/en/US/products/sw/iosswrel/ps1818/products_command_reference_chapter09186a00800 7fc95.html
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