ccnp final exam qns 201 to 300

QUESTION 31 Which of the following are valid defaults for Fast Switching of IP Multicast (Choose all that apply)?
A. enabled and not supported over X.25 encapsulated interfaces
B. enabled by default on all interfaces
C. disabled by default on all interfaces
D. disabled and not supported over X.25 encapsulated interfaces Answer: B, D Explanation: Fast switching of IP multicast packets is enabled by default on all interfaces (including GRE and DVMRP tunnels), with one exception: It is disabled and not supported over X.25 encapsulated interfaces.
QUESTION 32 Unidirectional Link is a very frequent cause for a bridging loop.
A. True
B. There is not enough information to determine
C. False Answer: A Explanation: According to Cisco: Unidirectional Link This is a very frequent cause for a bridging loop. Unidirectional links are often caused by a failure not detected on a fiber link for instance, or a problem with a transceiver. Anything that can lead a link to stay up while providing a one-way communication is very dangerous as far as STP is concerned.
QUESTION 33 STP is designed to run on (choose all that apply):
A. switches
B. servers
C. routers
D. bridges Answer: A, D Explanation: According to Cisco: Spanning-Tree Protocol (STP) is a Layer 2 (L2) protocol designed to run on bridges and switches. The specification for STP is called 802.1d. The main purpose of STP is to ensure that you do not run into a loop situation when you have redundant paths in your network. Loops are deadly to a network.
QUESTION 34 Loop avoidance can be achieved via which of the following technologies (Choose all that apply)?
A. VTP
B. MLS-RP
C. MLS-SE
D. VTP Pruning
E. STP
F. STP Trunking Answer: E Explanation: According to the online documentation provided by Cisco: Spanning-Tree Protocol (STP) is a Layer 2 protocol designed to run on bridges and switches. The specification for STP is called 802.1d. The main purpose of STP is to ensure that you do not run into a loop situation when you have redundant paths in your network. Loops are deadly to a network.
QUESTION 35 Bridging loop is usually caused by:
A. a failure in the route-switch module
B. a failure in the VLAN tunnel
C. a failure in the VTP trunk
D. a failure in the STA Answer: D Explanation: According to the online documentation provided by Cisco: The primary function of the spanning-tree algorithm (STA) is to cut loops created by redundant links in bridged networks. The Spanning-Tree Protocol (STP) operates at Layer 2 of the OSI model and, by the means of bridge protocol data units (BPDUs) exchanged between bridges, elects the ports that will eventually forward or block traffic. This protocol can fail in some specific cases and troubleshooting the resulting situation can be very difficult, depending on the design of the network. We can even say that in this particular area, the most important part of the troubleshooting is done before the problem occurs. A failure in the STA generally leads to a bridging loop (not a spanning tree loop as you don't need STP to have a loop). Most customers calling the TAC for spanning tree problems are suspecting a bug, but experience proves that it is seldom the case. Even if the software is at stake, a bridging loop in a STP environment necessarily comes from a port that should block, but that is forwarding traffic.
QUESTION 36 MLSP can cross a VTP domain boundary.
A. False
B. True
C. There is not enough information to determine Answer: A Explanation: According to Cisco: MLS requires that MLS components, including the end stations, must be in the same Virtual Trunking Protocol (VTP) domain. VTP is a Layer 2 protocol used for managing VLANs on several Catalyst switches from a central switch. It allows an administrator to create or delete a VLAN on all switches in a domain without having to do so on every switch in that domain. The MultiLayer Switching Protocol (MLSP), which the MLS-SE and the MLS-RP use to communicate with one another, does not cross a VTP domain boundary.
QUESTION 37 Which of the following is true if you are configuring a password for VTP (Choose all that apply)?
A. it is carried in all summary-advertisement VTP packet
B. it needs to be the same on all switches in the VTP domain
C. it needs to be configured on all switches in the VTP domain
D. it is translated using an algorithm in a 24 bytes word Answer: A, B, C Explanation: According to the online documentation provided by Cisco: If you configure a password for VTP, it needs to be configured on all switches in the VTP domain and it needs to be the same password. The VTP password you configure is translated using an algorithm in a 16 bytes word (MD5 value) carried in all summary-advertisement VTP packet.
QUESTION 38 You are a Cisco Certified Engineer. You are configuring a switching solution. You have IP accounting enabled. You are requested to define filters to control the hosts for which IP accounting information is kept. What command should be used (fill in the blank): Answer: ip accounting-list Explanation: According to Cisco: To define filters to control the hosts for which IP accounting information is kept, use the ip accounting-list global configuration command. To remove a filter definition, use the no form of this command. ip accounting-list ip-address wildcard no ip accounting-list ip-address wildcard
QUESTION 39 Refer to the exhibit: Warning: Spantree port fast start should only be enabled on ports connected to a single host. Connecting hubs, concentrators, switches, bridges, etc. to a fast start port can cause temporary spanning tree loops. Use with
caution. Spantree ports 4/1-24 fast start enabled. What command produces this output (fill in the blank): Answer: set spantree portfast 4/1-24 enable Explanation: According to Cisco: This setting should be configured only on ports that are connected to workstations or PCs. Do not enable portfast on any port connected to another switch.
QUESTION 40 When there are unknown unicasts and broadcasts in a VLAN that are flooded all over, what should be used to eliminate this unnecessary traffic?
A. VTP pruning
B. MLS-SE
C. VTP trunking
D. VTP compression Answer: A Explanation: According to the online documentation provided by Cisco: VTP ensures that all switches in the VTP domain are aware of all VLANs. There are occasions, however, when VTP can create unnecessary traffic. All unknown unicasts and broadcasts in a VLAN are flooded all over the VLAN. All switches in the network receive all broadcasts, even in situations where few users are connected in that VLAN. VTP pruning is a feature used to eliminate (prune) this unnecessary traffic.
QUESTION 41 What command do you use to make a VLAN pruning ineligible (fill in the blank): Answer: clear vtp pruneeligible Explanation: According to Cisco: To make a VLAN pruning ineligible, enter the clear vtp pruneeligible command. To make a VLAN pruning eligible again, enter the set vtp pruneeligible command. You can set VLAN pruning-eligibility regardless of whether VTP pruning is enabled or disabled for the domain. Pruning eligibility always applies to the local device only, not for the entire VTP domain.
QUESTION 42 What is the specification for STP?
A. 802.1e
B. 802.1x
C. 802.1d
D. 802.1QUESTION NO: Answer: C Explanation: According to Cisco: Spanning-Tree Protocol (STP) is a Layer 2 (L2) protocol designed to run on bridges and switches. The specification for STP is called 802.1d. The main purpose of STP is to ensure that you do not run into a loop situation when you have redundant paths in your network. Loops are deadly to a network.
QUESTION 43 For each VLAN, if all switches are configured with the default priority, the switch with the highest MAC address in the VLAN becomes the root switch.
A. There is not enough information to determine
B. False
C. True Answer: B Explanation: According to Cisco: For each VLAN, the switch with the highest bridge priority (the lowest numerical priority value) is elected as the root switch. If all switches are configured with the default priority (32768), the switch with the lowest MAC address in the VLAN becomes the root switch.
QUESTION 44 You can configure HSRP in networks that run which of the following protocols (Choose all that apply)?
A. Banyan VINES
B. IP
C. IBM DLC
D. Novell IPX
E. AppleTalk Answer: A, B, D, E Explanation: According to the online documentation provided by Cisco: You can configure HSRP in networks that, in addition to IP, run AppleTalk, Banyan VINES, and Novell IPX. AppleTalk and Novell IPX continue to function when the standby router becomes the active router, but they take time to adapt to topology changes. In general, AppleTalk hosts discover a new active router in less than 30 seconds. Novell 4.x hosts discover a new active router in 10 seconds, on average. Novell 2.x or Novell 3.x hosts might require more time to adapt.
QUESTION 45 Which of the following messages is sent every 3 seconds by a HSRP-configured router (Choose all that apply)?
A. Retire
B. Coup
C. Resign
D. Send
E. Hello Answer: E Explanation: According to the online documentation provided by Cisco: HSRP-configured routers exchange three types of multicast messages: Hello-The hello message conveys to other HSRP routers the router's HSRP priority and state information. By default, an HSRP router sends hello messages every three seconds. Coup-When a standby router assumes the function of the active router, it sends a coup message. Resign-A router that is the active router sends this message when it is about to shut down or when a router that has a higher priority sends a hello message.
QUESTION 46 In the STP root selection process, the switch with the lowest priority in the network:
A. Withdraw from the election process.
B. loses the election process.
C. wins the election process. Answer: C Explanation: According to Cisco: As the BPDU goes out through the network, each switch compares the BPDU it sent out to the one it received from its neighbors. From this comparison, the switches come to an agreement as to who the root switch is. The switch with the lowest priority in the network wins this election process.
QUESTION 47 You are a Cisco Certified Engineer. You are configuring a switching solution. You have several VLAN trunks in Auto and Off modes. You are entering a new port. Which mode must you choose for the port to be in permanent trunking mode (Choose all that apply)?
A. No negotiate
B. On
C. Auto
D. Desirable
E. Off Answer: A, B Explanation: According to Cisco: Ethernet Trunking Modes Mode on
off
desirable
auto
nonegotiate
Top of Form Bottom of Form
Function Puts the port into permanent trunking mode and negotiates to convert the link into a trunk link. The port becomes a trunk port even if the neighboring port does not agree to the change. Puts the port into permanent nontrunking mode and negotiates to convert the link into a nontrunk link. The port becomes a nontrunk port even if the neighboring port does not agree to the change. Makes the port actively attempt to convert the link to a trunk link.
The port becomes a trunk port if the neighboring port is set to on, desirable, or auto mode. Makes the port willing to convert the link to a trunk link. The port becomes a trunk port if the neighboring port is set to on or desirable mode. This is the default mode for all Ethernet ports. Puts the port into permanent trunking mode but prevents the port
from generating DTP frames. You must configure the neighboring port manually as a trunk port to establish a trunk link.
QUESTION 48 You are configuring STP. You want to show spanning tree statistical information. What command will you use?
A. show spantree backbonefast
B. show spantree statistics
C. show spantree uplinkfast
D. show spantree blockedports
E. show spantree portstate
F. show spantree portvlancost Answer: B
QUESTION 49 Each Layer 2 interface on a switch using spanning tree does NOT exist in one of the following five states?
A. Forwarding
B. None of the choices.
C. Learning
D. Disabled
E. Blocking
F. Listening Answer: B Explanation: According to Cisco: Each Layer 2 interface on a switch using spanning tree exists in one of the following five states: Blocking-The Layer 2 interface does not participate in frame forwarding Listening-First transitional state after the blocking state when spanning tree determines that the Layer 2 interface should participate in frame forwarding Learning-The Layer 2 interface prepares to participate in frame forwarding Forwarding-The Layer 2 interface forwards frames Disabled-The Layer 2 interface does not participate in spanning tree and is not forwarding frames
QUESTION 50 According to Cisco, manually configuring the hello time, forward delay time, and maximum age time after configuring the switch as the root bridge is RECOMMENDED for optimal performance.
A. True
B. There is not enough information to determine
C. False Answer: C Explanation: According to Cisco: We recommend that you avoid manually configuring the hello time, forward delay time, and maximum age time after configuring the switch as the root bridge.
QUESTION 51 When setting up multicast, you will need to specify an addressing scheme. Which of the following is true concerning the addressing scheme for IP (Choose all that apply)?
A. Class E addresses are reserved
B. Class E addresses are allocated dynamically
C. Class D addresses are allocated dynamically
D. Class D addresses are allocated manually
E. Class D addresses are reserved Answer: C, E QUESTION 52 What command displays MLS entries for a specific IP flow (fill in the blank): Answer: show mls entry ip flow Explanation: According to Cisco: The show mls entry ip flow command displays MLS entries for a specific IP flow. The protocol argument can be tcp, udp, icmp, or a decimal number for other protocol families. The src_port and dst_port arguments specify the protocol ports if the protocol is TCP or User Datagram Protocol (UDP). A value of zero (0) for src_port and dst_port or protocol is treated as a wildcard and all entries are displayed (unspecified options are treated as wildcards). If the protocol selected is not TCP or UDP, set the src_port and dst_prt to 0 or no flows will display.
QUESTION 53 You can assign higher priority values to interfaces that you want spanning tree to select first and lower priority values to interfaces that you want spanning tree to select last. However, if all interfaces have the same priority value, spanning tree puts the interface with the __________ interface number in the forwarding state.
A. Neutral
B. Highest
C. Lowest
D. Random Answer: C Explanation: According to Cisco: In the event of a loop, spanning tree considers port priority when selecting an interface to put into the forwarding state. You can assign higher priority values to interfaces that you want spanning tree to select first and lower priority values to interfaces that you want spanning tree to select last. If all interfaces have the same priority value, spanning tree puts the interface with the lowest interface number in the forwarding state and blocks other interfaces.
QUESTION 54 The selection of the root switch for a particular VLAN is not an important issue.
A. False
B. True
C. There is not enough information to determine Answer: A Explanation: According to Cisco: The selection of the root switch for a particular VLAN is very important. You can choose it, or you can let the switches decide on their own. The second option is risky because there may be sub-optimal paths in your network if the root selection process is not controlled by you.
QUESTION 55 You are a Cisco Certified Engineer. You are configuring a switching solution. You want to enable TCP header compression. What command must be used (fill in the blank): Answer: ip tcp header-compression Explanation:
According to Cisco: To enable TCP header compression, use the ip tcp header-compression interface configuration command. To disable compression, use the no form of this command. ip tcp header-compression [passive] no ip tcp header-compression [passive]
QUESTION 56 With STP, you can make configuration changes centrally on one or more switches and those changes are automatically communicated to all the other switches in the network.
A. There is not enough information to determine
B. True
C. False Answer: C Explanation: According to Cisco: Before you create virtual LANs (VLANs), you must decide whether to use VTP in your network. With VTP, you can make configuration changes centrally on one or more switches and those changes are automatically communicated to all the other switches in the network.
QUESTION 57 What are the commands to use to make a VLAN pruning ineligible and eligible respectively (Choose all that apply)?
A. clear vtp pruneeligible
B. clear vtp prun
C. set vtp prun
D. set vtp pruneeligible Answer: A, D Explanation: To make a VLAN pruning ineligible, enter the clear vtp pruneeligible command. To make a VLAN pruning eligible again, enter the set vtp pruneeligible command.
QUESTION 58 Which of the following are the valid VTP message types (Choose all that apply)?
A. Summary advertisements
B. Advertisement requests
C. VTP join messages
D. Subset advertisement Answer: A, B, C, D Explanation: According to the online documentation provided by Cisco: The format of the VTP header can vary depending on the type of VTP message. However, they all contain the following fields in the header: VTP protocol version : 1 or 2 VTP message types: Summary advertisements Subset advertisement Advertisement requests VTP join messages Management domain length Management domain name
QUESTION 59 You want to confirm whether or not the MLS-RP interfaces are in an "up/up" state on the router. What command will you use?
A. show ip interface brief
B. show ip brief
C. show interface brief ip
D. show interface brief Answer: A
QUESTION 60 For MLS to function, the switch must recognize the router as:
A. A netflow card
B. An MLS-RP
C. An MLS-SE
D. An MLS-RE Answer: B Explanation: According to Cisco: For MLS to function, the switch must recognize the router as an MLS-RP. Internal MLS-RPs (once again, the RSM or RSFC in a Catalyst 5000 family member, and the MSFC in a Catalyst 6000 family member) are automatically recognized by the MLS-SE in which they are installed. For external MLS-RPs, one must explicitly inform the switch of the router's address. This address is not actually an IP address, although on external MLS-RPs it is chosen from the list of IP addresses configured on the router's interfaces. It is simply a router ID. For internal MLS-RPs, the MLS-ID is normally not even an IP address configured on the router. Since internal MLS-RPs are included automatically, it is commonly a loopback address (127.0.0.x). For MLS to function, include on the MLS-SE the MLS-ID found on the MLS-RP.
QUESTION 61 You are a Cisco Certified Engineer. You are configuring a switching solution with Catalyst 5000 series switches. You need to configure SPAN. Which of the following is true regarding the configuration of the token ring port?
A. the source port must not be a single Token Ring port if the SPAN destination port is a Token Ring port
B. there is nothing special to consider
C. the source port must be a single Token Ring port if the SPAN destination port is a non-Token Ring port
D. the source port must be a single Token Ring port if the SPAN destination port is a Token Ring port Answer: D Explanation: According to Cisco: Follow these guidelines when configuring SPAN: If the SPAN destination port is a Token Ring port, then the source port must be a single Token Ring port. In software releases prior to 4.2, if the SPAN destination port is connected to another device, the port always receives incoming packets for the VLAN it is assigned to but does not participate in spanning tree for that VLAN. To avoid creating spanning tree loops, assign the SPAN destination port to an unused VLAN. In software release 4.2 and later, incoming traffic on the SPAN destination port is disabled by default. You can enable it using the inpkts enable keywords. However, while the port receives traffic for its assigned VLAN, it does not participate in spanning tree for that VLAN. To avoid creating spanning tree loops with incoming traffic enabled, assign the SPAN destination port to an unused VLAN. You cannot disable the reception of incoming packets on the destination SPAN port (using the inpkts disable keywords) on Token Ring SPAN destination ports.
QUESTION 62 The show spanning-tree command only displays information for ports with the red light on.
A. True
B. There is not enough information to determine
C. False Answer: C Explanation: According to Cisco: The show spanning-tree command only displays information for ports with an active link (green light is on). If these conditions are not met, you can issue a show running-config command to confirm the configuration.
QUESTION 63 Spanning-Tree Protocol runs on what layer?
A. Layer 4
B. across multiple layers
C. Layer 5
D. Layer 2
E. Layer 3 Answer: D Explanation: According to the online documentation provided by Cisco: Spanning-Tree Protocol (STP) is a Layer 2 protocol designed to run on bridges and switches. The specification for STP is called 802.1d. The main purpose of STP is to ensure that you do not run into a loop situation when you have redundant paths in your network. Loops are deadly to a network.
QUESTION 64 What command can you use on a Cisco router to add an IP MLS interface to a VTP domain named sales (CASE SENSITIVE fill in the blank): Answer: mls rp vtp-domain sales Explanation: According to the online documentation provided by Cisco: To add an IP MLS interface to a VTP domain, perform this task in interface configuration mode: Task Command Add an IP MLS interface to a VTP domain. mls rp vtp-domain [domain_name] This example shows how to add an IP MLS interface to a VTP domain: Router(config-if)Qmls rp vtp-domain engineering Router(config-if)Q QUESTION 65 Refer to the exhibit: Destination-IP Source-IP Prot DstPrt SrcPrt Destination-Mac Vlan ESrc EDst SPort DPort Stat-Pkts Stat-Byte Uptime Age 171.69.200.234 171.69.192.41 TCP* 6000 59181 00-60-70-6c-fc-22 4 ARPA SNAP 5/8 11/1 3152 347854 09:01:19 09:08:20 171.69.1.133 171.69.192.42 UDP 2049 41636 00-60-70-6c-fc-23 2 SNAP ARPA 5/8 1/1 2345 123456 09:03:32 09:08:12 Total Entries: 2 What command can produce this output (fill in the blank): Answer: show mls entry ip short Explanation: According to Cisco: This example shows how the show mls entry command output appears in full flow mode: Console> (enable) show mls entry ip short Destination-IP Source-IP Prot DstPrt SrcPrt Destination-Mac Vlan ESrc EDst SPort DPort Stat-Pkts Stat-Byte Uptime Age 171.69.200.234 171.69.192.41 TCP* 6000 59181 00-60-70-6c-fc-22 4 ARPA SNAP 5/8 11/1 3152 347854 09:01:19 09:08:20 171.69.1.133 171.69.192.42 UDP 2049 41636 00-60-70-6c-fc-23 2 SNAP ARPA 5/8 1/1 2345 123456 09:03:32 09:08:12 Total Entries: 2
* indicates TCP flow has ended Console> (enable)
QUESTION 66 You are a Cisco Certified Engineer. You are configuring a switching solution. If you configure a switch as a VTP server offline and then connect it to the network, what may happen to the switch?
A. Cause a loss of VLAN information
B. Destabilize the spanning tree
C. Revert to simplex mode
D. Revert to duplex mode
E. Ignore the configuration revision numbers created on the other VTP servers
F. Revert to client mode Answer: A Explanation: Be sure that you know the characteristics of the different VTP modes. According to Cisco: You can configure a switch to operate in any one of these VTP modes: Server-In VTP server mode, you can create, modify, and delete VLANs and specify other configuration parameters (such as VTP version and VTP pruning) for the entire VTP domain. VTP servers advertise their VLAN configuration to other switches in the same VTP domain and synchronize their VLAN configuration with other switches based on advertisements received over trunk links. VTP server is the default mode. Client-VTP clients behave the same way as VTP servers, but you cannot create, change, or delete VLANs on a VTP client. Transparent-VTP transparent switches do not participate in VTP. A VTP transparent switch does not advertise its VLAN configuration and does not synchronize its VLAN configuration based on received advertisements. However, in VTP version 2, transparent switches do forward VTP advertisements that they receive out their trunk ports.
QUESTION 67 The selection of the root switch should be done by yourself for optimal performance.
A. False
B. True
C. There is not enough information to determine Answer: B Explanation: According to Cisco: The selection of the root switch for a particular VLAN is very important. You can choose it, or you can let the switches decide on their own. The second option is risky because there may be sub-optimal paths in your network if the root selection process is not controlled by you.
QUESTION 68 Refer to the exhibit: VLAN 1 bridge priority set to 8192. VLAN 1 bridge max aging time set to 20. VLAN 1 bridge hello time set to 2. VLAN 1 bridge forward delay set to 15. Switch is now the root switch for active VLAN 1. What command produces this output (fill in the blank): Answer: set spantree root 1 Explanation: According to Cisco: The default priority for switches is 32768. This command setting means that the switch will be selected as the root switch because it has the lowest priority.
QUESTION 69 You want to allow Router ABC to become the active router if its priority is highest when the active router fails. What command will you use?
A. en standby preempt
B. standby preempt enable
C. standby preempt
D. hot standby preempt Answer: C Explanation: The standby preempt interface configuration command allows a Router to become the active router if its priority is highest when the active router fails.
QUESTION 70 It is a basic topology requirement of MLS that the router have a path to each of the VLANs on the network.
A. There is not enough information to determine
B. False
C. True Answer: C Explanation: According to Cisco: It is a basic topology requirement of MLS that the router have a path to each of the VLANs. Remember that the point of MLS is to create a shortcut between two VLANs, so that the "routing" between the two end devices can be performed by the switch, thus freeing the router for other tasks. The switch is not actually routing; it is rewriting the frames so that it appears to the end devices that they are talking through the router. If the two devices are in the same VLAN, then the MLS-SE will switch the frame locally without utilizing MLS, as switches do in such a transparently bridged environment, and no MLS shortcut will be created. One can have multiple switches and routers in the network, and even multiple switches along the flow path, but the path between the two end devices for which one desires an MLS shortcut must include a single MLS-RP in that VLAN for that path. In another words, the flow from source to destination must cross a VLAN boundary on the same MLS-RP, and a candidate and enabler packet pair must be seen by the same MLS-SE for the MLS shortcut to be created. If these criteria are not met, then the packet will be routed normally without the use of MLS.
QUESTION 71 In order to use VTP, which of the following conditions for a VTP domain must be met (Choose all that apply)?
A. Trunking must be enabled between all Catalyst switches.
B. The Catalyst switches must be non-adjacent for trunking to be possible between them
C. The Catalyst switches must be adjacent.
D. Each Catalyst switch in a domain should be assigned the same VTP domain name. Answer: A, C, D Explanation: According to the online documentation provided by Cisco: In order to use VTP, you must assign a VTP domain name to each switch. VTP information will remain only within the same VLAN domain. The following are conditions for a VTP domain: Each Catalyst switch in a domain should be assigned the same VTP domain name. The Catalyst switches must be adjacent. Trunking must be enabled between all Catalyst switches. If any one of the previous conditions is not met, the VTP domain is broken and information will not travel between the two separate parts.
QUESTION 72 Refer to the exhibit: VLAN 200 bridge priority set to 8192. VLAN 200 bridge max aging time set to 20. VLAN 200 bridge hello time set to 2. VLAN 200 bridge forward delay set to 15. Switch is now the root switch for active VLAN 200. What command produces this output (fill in the blank): Answer: set spantree root 200 Explanation: According to Cisco: The default priority for switches is 32768. This command setting means that the switch will be selected as the root switch because it has the lowest priority.
QUESTION 73 Which of the following about VTP deployment is true (choose all that apply):
A. VTP version 2 is supported in supervisor engine software release 3.1(1) and later.
B. you must decide whether to use VTP version 1 or version 2.
C. VTP version 1 is supported in supervisor engine software release 2.1 or later
D. VTP version 1 is supported in ATM software release 3.1 or later. Answer: A, B, C, D Explanation: According to Cisco: If you use VTP in your network, you must decide whether to use VTP version 1 or version 2. VTP version 1 is supported in supervisor engine software release 2.1 or later and ATM software release 3.1 or later. VTP version 2 is supported in supervisor engine software release 3.1(1) and later.
QUESTION 74 Refer to the exhibit: VLAN1 is executing the ieee compatible Spanning Tree protocol Bridge Identifier has priority 32768, address 0030.94fc.0a00 Configured hello time 2, max age 20, forward delay 15 Current root has priority 32768, address 0001.6445.4400 Root port is 323 (FastEthernet6/3), cost of root path is 19 Topology change flag not set, detected flag not set Number of topology changes 2 last change occurred 00:02:19 ago from FastEthernet6/1 Times: hold 1, topology change 35, notification 2 hello 2, max age 20, forward delay 15 Timers:hello 0, topology change 0, notification 0, aging 300 Port 323 (FastEthernet6/3) of VLAN1 is forwarding Port path cost 19, Port priority 128, Port Identifier 129.67. Designated root has priority 32768, address 0001.6445.4400 Designated bridge has priority 32768, address 0001.6445.4400 Designated port id is 129.67, designated path cost 0 Timers:message age 2, forward delay 0, hold 0 Number of transitions to forwarding state:1 BPDU:sent 3, received 91 What command produces this output (fill in the blank): Answer: show spanning-tree vlan 1 Explanation: According to Cisco: To configure a switch as the root switch, perform this task: Task Command Step 1 Configure a switch as the root switch. Use the no keyword to restore the defaults. Switch(config)Q [no] spanning-tree vlan vlan_ID root primary [diameter hops [hello-time seconds]] Step 2 Exit configuration mode. Switch(config)Q end QUESTION 75 Spanning tree uses the port cost value when the interface is configured as an access port and uses VLAN port cost values when the interface is configured as a trunk port.
A. There is not enough information to determine
B. False
C. True Answer: C Explanation: According to Cisco: Spanning tree uses the port cost value when the interface is configured as an access port and uses VLAN port cost values when the interface is configured as a trunk port.
QUESTION 76 To configure VTP pruning, you performed a series of tasks. What is the following command for? clear vtp pruneeligible vlan_range
A. Step 4 Verify the VTP pruning configuration.
B. Step 3 Make specific VLANs pruning-eligible on the device.
C. Step 2 Make specific VLANs pruning-ineligible on the device.
D. Step 1 Enable VTP pruning in the management domain.
E. Step 5 Verify that the appropriate VLANs are being pruned on trunk ports. Answer: C Explanation: For more info visit http://www.cisco.com/univercd/cc/td/doc/product/lan/cat5000/rel_5_2/config/top.html
QUESTION 77 VTP pruning aims at:
A. enhancing network integrity
B. enhancing network bandwidth use
C. deploying AAA
D. enhancing network security Answer: B Explanation: According to Cisco: VTP pruning enhances network bandwidth use by reducing unnecessary flooded traffic, such as broadcast, multicast, unknown, and flooded unicast packets. VTP pruning increases available bandwidth by restricting flooded traffic to those trunk links that the traffic must use to access the appropriate network devices. By default, VTP pruning is disabled.
QUESTION 78 Which of the following correctly describe VTP transparent switches (choose all that apply):
A. they do not synchronize VLAN configuration based on received advertisements
B. they do not participate in VTP
C. they do not advertise VLAN configuration Answer: A, B, C Explanation: According to Cisco: VTP transparent switches do not participate in VTP. A VTP transparent switch does not advertise its VLAN configuration and does not synchronize its VLAN configuration based on received advertisements. However, in VTP version 2, transparent switches do forward VTP advertisements that they receive out their trunk ports.
QUESTION 79 What command do you use to display the current state of the spanning tree for the "vlan_id" entered from the perspective of the switch on which it is entered ?
A. show spantree id vlan_id
B. show spantree vlan_id state
C. show spantree vlan_id
D. show spantree state vlan_id
E. show spantree vlan vlan_id Answer: C Explanation: According to the online documentation provided by Cisco: Commands to Use for Verifying The Configuration is Working show spantree vlan_id - Shows the current state of the spanning tree for the "vlan_id" entered from the perspective of the switch on which it is entered. show spantree summary - Provides a summary of connected spanning tree ports by VLAN.
QUESTION 80 When you enable VTP version 2 on a switch, all of the version 2-capable switches in the domain power cycle automatically.
A. False
B. There is not enough information to determine
C. True Answer: A Explanation: According to Cisco: Do not enable VTP version 2 on a switch unless all of the switches in the same VTP domain are version 2-capable. When you enable VTP version 2 on a switch, all of the version 2-capable switches in the domain enable VTP version 2.
QUESTION 81 Cisco's Hot Standby Routing Protocol provides automatic router backup when you configure it on Cisco routers that run IP over which of the following?
A. Ethernet and FDDI
B. Ethernet, FDDI and Token Ring LANs
C. Token Ring LANs only
D. VINES only
E. Ethernet and Token Ring LANsAnswer: B Explanation: According to the online documentation provided by Cisco: Cisco's Hot Standby Routing Protocol (HSRP) provides automatic router backup when you configure it on Cisco routers that run the Internet Protocol (IP) over Ethernet, Fiber Distributed Date Interface (FDDI), and Token Ring local-area networks (LANs). HSRP is compatible with Novell's Internetwork Packet Exchange (IPX), AppleTalk, and Banyan VINES, and it is compatible with DECnet and Xerox Network Systems (XNS) in certain configurations.
QUESTION 82 STP prevents redundant links.
A. False
B. True
C. There is not enough information to determine Answer: A Explanation: According to Cisco: STP runs on bridges and switches that are 802.1d-compliant. There are different flavors of STP, with IEEE 802.1d being the most popular and widely implemented. STP is implemented on bridges and switches in order to prevent loops in the network. STP should be used in situations where you want redundant links, but not loops.
QUESTION 83 Refer to the exhibit: Protocol TotalFlows TotalPackets Total Bytes Telnet 900 630 4298 FTP 688 21903105 WWW 389 42679 623686 SMTP 802 4966 92873 What command can produce this output (fill in the blank): Answer: show mls statistics protocol Explanation: According to Cisco: This example shows how to display IP MLS statistics by protocol: Console> (enable) show mls statistics protocol Protocol TotalFlows TotalPackets Total Bytes Telnet 900 630 4298 FTP 688 2190 3105 WWW 389 42679 623686 SMTP 802 4966 92873 X 142 2487 36870 DNS 1580 52 1046 Others 82 1 73 Total 6583 53005 801951 Console> (enable)
QUESTION 84 The spanning tree port path cost default value is derived from:
A. the server speed settings
B. the available bandwidth.
C. the media speed of an interface.
D. the stored IOS settings Answer: C Explanation: According to Cisco: The spanning tree port path cost default value is derived from the media speed of an interface. In the event of a loop, spanning tree considers port cost when selecting an interface to put into the forwarding state. You can assign lower cost values to interfaces that you want spanning tree to select first and higher cost values to interfaces that you want spanning tree to select last. If all interfaces have the same cost value, spanning tree puts the interface with the lowest interface number in the forwarding state and blocks other interfaces. The possible cost range is 1 through 200000000 (the default is media specific).
QUESTION 85 What command removes specific MLS cache entries (fill in the blank): Answer: clear mls entry Explanation: According to Cisco: The clear mls entry command removes specific MLS cache entries on the switch. The all keyword clears all MLS entries. The destination and source keywords specify the source and destination IP addresses. The destination and source ip_addr_spec can be a full IP address or a subnet address in the format ip_subnet_addr, ip_addr/subnet_mask, or ip_addr/subnet_mask_bits.
QUESTION 86 STP runs on bridges and switches that are compliant with which standard?
A. 802.1c
B. 802.1e
C. 802.1x
D. 802.1f
E. 802.1d Answer: E Explanation: According to the online documentation provided by Cisco: STP runs on bridges and switches that are 802.1d-compliant. There are different flavors of STP, with IEEE 802.1d being the most popular and widely implemented. STP is implemented on bridges and switches in order to prevent loops in the network. Use it in situations where you want redundant links, but not loops. Redundant links are important as backups in case of failover in a network. If your primary fails, the backup links are activated so that users can continue using the network. Without STP on the bridges and switches, such a situation could result in a loop.
QUESTION 87 A BPDU exchange can result in which of the following (choose all that apply):
A. One switch is elected as the root switch.
B. Ports included in the spanning tree are selected.
C. The shortest distance to the root switch is calculated
D. A designated bridge for each LAN segment is selected.
E. A root port is selected. Answer: A, B, C, D, E
Explanation: According to Cisco: A BPDU exchange results in the following: One switch is elected as the root switch. The shortest distance to the root switch is calculated for each switch based on the path cost. A designated bridge for each LAN segment is selected. This is the switch closest to the root bridge through which frames are forwarded to the root. A root port is selected. This is the port providing the best path from the bridge to the root bridge. Ports included in the spanning tree are selected.
QUESTION 88. Which of the following are the valid flow masks for MLS-SE (Choose all that apply)?
A. source-destination-ip
B. ip-sum
C. ip-bypass
D. destination-ip
E. ip-flow Answer: A, D, E Explanation: According to the online documentation provided by Cisco: The three flow masks are as follows: destination-ip-The least-specific flow mask. The MLS-SE maintains one MLS entry for each destination IP address. All flows to a given destination IP address use this MLS entry. This mode is used if there are no access lists configured on any of the MLS-RP interfaces. source-destination-ip-The MLS-SE maintains one MLS entry for each source and destination IP address pair. All flows between a given source and destination use this MLS entry regardless of the IP protocol ports. This mode is used if there is a standard access list on any of the MLS-RP interfaces. source-destination-ip-The MLSSE maintains one MLS entry for each source and destination IP address pair. IP flow. An ip-flow entry includes the source IP address, destination IP address, protocol, and protocol ports. This mode is used if there is an extended access list on any of the MLS-RP interfaces.
QUESTION 89 Refer to the exhibit: Warning: Spantree port fast start should only be enabled on ports connected to a single host. Connecting hubs, concentrators, switches, bridges, etc. to a fast start port can cause temporary spanning tree loops. Use with caution. Spantree ports 3/1-24 fast start enabled. What command produces this output (fill in the blank): Answer: set spantree portfast 3/1-24 enable Explanation: According to Cisco: This setting should be configured only on ports that are connected to workstations or PCs. Do not enable portfast on any port connected to another switch.
QUESTION 90 Refer to the exhibit: All mls statistics cleared.
Console> (enable) What command can produce this output (fill in the blank): Answer: clear mls statistics Explanation: According to Cisco: This example shows how to clear IP MLS statistics on the switch: Console> (enable) clear mls statistics All mls statistics cleared. Console> (enable)
QUESTION 91 The show spanning-tree port-priority command only displays information for ports with an active link.
A. False
B. There is not enough information to determine
C. True Answer: C Explanation: According to Cisco: The show spanning-tree port-priority command only displays information for ports with an active link. If these conditions are not met, enter a show running-config interface command to verify the configuration.
QUESTION 92 What are the advantages of layer 3 switching (Choose all that apply)?
A. High-performance packet switching
B. Security
C. Flow accounting
D. Low latency
E. Low per-port cost
F. Quality of service
G. Scalability
H. Hardware-based packet forwarding Answer: A, B, C, D, E, F, G, H
QUESTION 93 Which variable, when enabled on a port, causes the port to immediately switch from blocking mode to forwarding mode (fill in the blank): Answer: portfast Explanation: According to Cisco: The portfast variable, when enabled on a port, causes the port to immediately switch from blocking mode to forwarding mode. This helps prevent time-outs on clients that use Novell Netware or that use Dynamic Host Configuration Protocol (DHCP) to obtain an IP address. However, it is important that you do not use this command when you have switch-to-switch connection. It could potentially result in a loop. The 30-60 second delay that occurs when transitioning from blocking to forwarding mode transition prevents a temporal loop condition in the network when connecting two switches.
QUESTION 94 Which of the following are the valid fields in the VTP header (Choose all that apply)?
A. Management domain name
B. VTP protocol version
C. VTP message types
D. Management domain length Answer: A, B, C, D Explanation: According to the online documentation provided by Cisco: The format of the VTP header can vary depending on the type of VTP message. However, they all contain the following fields in the header: VTP protocol version : 1 or 2 VTP message types: Summary advertisements Subset advertisement Advertisement requests VTP join messages Management domain length Management domain name
QUESTION 95 To communicate and compute the spanning tree topology, Bridge Protocol Data Units are transmitted from each switch and in both directions from and to the root switch.
A. False
B. There is not enough information to determine
C. True Answer: A Explanation: According to Cisco: To communicate and compute the spanning tree topology, Bridge Protocol Data Units (BPDUs) are transmitted from each switch (configuration BPDUs) and in one direction from the root switch.
QUESTION 96 The MLS-RP can be internal but not external.
A. True
B. False
C. There is not enough information to determine Answer: B Explanation: According to Cisco: The MLS-RP can be internal (installed in a switch chassis) or external (connected via a cable to a trunk port on the switch). Examples of internal MLS-RPs are the Route Switch Module (RSM) and the Route Switch Feature Card (RSFC), which are installed in a slot or supervisor of a Catalyst 5000 family member, respectively.
QUESTION 97 Enabling VTP pruning on a VTP server:
A. is not possible without a root re-election
B. enables pruning for the entire management domain.
C. cannot be done
D. enables pruning for the individual switch. Answer: B Explanation: According to Cisco: Enabling VTP pruning on a VTP server enables pruning for the entire management domain. VTP pruning takes effect several seconds after you enable it. By default, VLANs 2 through 1000 are pruning-eligible. VTP pruning does not prune traffic from VLANs that are pruning-ineligible. VLAN 1 is always pruning-ineligible; traffic from VLAN 1 cannot be pruned.
QUESTION 98 Refer to the exhibit: Multilayer switching aging time set to 512 Console> (enable) What command can produce this output (fill in the blank): Answer: set mls agingtime 512 Explanation: According to Cisco: This example shows how to specify the IP MLS aging time: Console> (enable) set mls agingtime 512 Multilayer switching aging time set to 512 Console> (enable)
QUESTION 99 What MLS component is utilized by the MLS-RP and the MLS-SE to communicate with one another (fill in the blank): Answer: MLSP Explanation: According to Cisco: Because understanding the basics of MLSP gets at the heart of MLS, and is essential to performing effective MLS troubleshooting, we will describe MLSP here more in detail. MLSP is utilized by the MLS-RP and the (cache information); and managing and exporting flow statistics (Netflow Data Export is covered in other documentation). MLSP also allows the MLS-SE to learn the Media Access Control (MAC, Layer 2) addresses of the MLS-enabled router interfaces, check the flowmask of the MLS-RP (explained later in this document), and confirm that the MLS-RP is operational. The MLS-RP sends out multicast "hello" packets every 15 seconds using MLSP; if three of these intervals are missed, then the MLS-SE recognizes that the MLS-RP has failed or that connectivity to it has been lost.
QUESTION 100 IP MLS is enabled GLOBALLY by default.
A. True
B. There is not enough information to determine
C. False Answer: A
Explanation: According to Cisco: IP MLS is enabled globally by default, but can be disabled and enabled on a specified interface.
QUESTION 101 You are a Cisco Certified Engineer. You are configuring a switching solution. During extended periods of instability for your VLANs, what should you do to reduce spanning-tree protocol BPDU traffic?
A. Combine all the VLAN spanning trees into a single spanning tree.
B. Set forward delay and max-age timers to the maximum possible values.
C. None of the choices.
D. Change the router VTP server mode.
E. Disable the root bridge Answer: B Explanation: According to Cisco: Spanning-Tree Protocol (STP) is a Layer 2 protocol designed to run on bridges and switches. The specification for STP is called 802.1d. The main purpose of STP is to ensure that you do not run into a loop situation when you have redundant paths in your network. Loops are deadly to a network. More information can be found at: this site You may also visit this link for details on the BPDU format: this site
QUESTION 102 With VTP, what is true regarding the switch operation (Choose all that apply)?
A. a switch can only reside in one domain
B. a switch is listening to VTP advertisements from their own domain only
C. a switch is listening to VTP advertisements from multi domains
D. a switch can reside in one or more domains Answer: A, B
QUESTION 103 Which of the following is true concerning IEEE 802.1Q (choose all that apply)?
A. Use frame tagging.
B. None of the answers
C. It is a method for identifying VLANs
D. It inserts VLAN identifier into the frame header Answer: A, C, D
QUESTION 104 You are a Cisco Certified Engineer. You are configuring a switching solution. You are preparing to install a UTP cable connection. You should have no more than how many meters from the punch down block to the switch?
A. 95
B. 183
C. None of the choices.
D. 244
E. 355 Answer: A
Explanation: According to Cisco: The maximum length for an unshielded twisted pair (UTP) cable segment is 100 meters. The maximum length for a fiber cable is 2 km. According to webopedia.com: UTP - Short for Unshielded Twisted Pair, a popular type of cable that consists of two unshielded wires twisted around each other. Due to its low cost, UTP cabling is used extensively for local-area networks (LANs) and telephone connections. UTP cabling does not offer as high bandwidth or as good protection from interference as coaxial or fiber optic cables, but it is less expensive and easier to work with.
QUESTION 105 What is true of the aging time setting in MLS (Choose all that apply)?
A. default value is 25 seconds
B. default value is 256 seconds
C. it determines when to delete an MLS entry from the cache if a corresponding flow has not been detected.
D. use the set mls agti enable command to adjust the aging time.
E. use the set mls agingtime command to adjust the aging time. Answer: B, C, E
QUESTION 106 You are a Cisco Certified Engineer. You are configuring a switching solution. Which command should be used to disable CGMP on a set command-based switch (fill in the blank): Answer: set cgmp disable Explanation: Remember, set based switch always need the command set at the beginning. According to Cisco: CGMP was first implemented by Cisco to restrain multicast traffic in a layer 2 network. Because a switch is, by essence, not capable of looking at layer 3 packets, it cannot distinguish an IGMP packet. With CGMP, the router provides the interface between the hosts. The routers "talk" IGMP, and the switches "talk" CGMP. More information can be found at: this site
QUESTION 107 What are the valid VTP operation modes (Choose all that apply)?
A. Server
B. Frontend
C. Client
D. Transparent
E. Backbone Answer: A, C, D
QUESTION 108 To configure VTP on a switch, you may need to use the following commands: show trunk What is this command for?
A. For verifying configuration.
B. For enabling VTP pruning.
C. For verifying configuration set
D. For selecting VTP version.
E. For determining management domain name Answer: A
QUESTION 109 You are a Cisco Certified Engineer. You are configuring a switching solution. You want to download a system software image to your switch. Which of the following are likely to be required (Choose all that apply)?
A. network connection to a TFTP server
B. the File Transfer Protocol
C. the Trivial File Transfer Protocol
D. network connection to a FTP server Answer: A, C Explanation: According to Cisco: You can download system software images to the switch using the Trivial File Transfer Protocol (TFTP). TFTP allows you to download system image files over the network from a TFTP server. Some modules, such as Catalyst 5000 family FDDI and ATM modules, have their own onboard Flash. When you download a software image file, the switch checks the header of the image file to determine the type of software image.
QUESTION 110 You are a Cisco Certified Engineer. You are configuring a switching solution. For CGMP to operate correctly on a switch, the switch must have a network connection to which of the following?
A. Switch running EIGRP
B. Switch running IGRP
C. Switch running EGMP
D. Router running CGMP Answer: D Explanation: According to Cisco: CGMP was first implemented by Cisco to restrain multicast traffic in a layer 2 network. Because a switch is, by essence, not capable of looking at layer 3 packets, it cannot distinguish an IGMP packet. With CGMP, the router provides the interface between the hosts. The routers "talk" IGMP, and the switches "talk" CGMP. More information can be found at: this site
QUESTION 111 You are a Cisco Certified Engineer. You are configuring a switching solution. What command is valid for displaying a summary of spanning-tree information (fill in the blank): Answer: show spantree summary Explanation: According to Cisco: Use the show spantree summary command to display a summary of spanning-tree information: show spantree summary
QUESTION 112 You are a Cisco Certified Engineer. You are configuring a switching solution. You are requested to enable IP accounting on one of the interfaces. What command should you use (fill in the blank): Answer: ip accounting Explanation:
According to Cisco: To enable IP accounting on an interface, use the ip accounting interface configuration command. To disable IP accounting, use the no form of this command. ip accounting [access-violations] no ip accounting [access-violations]
QUESTION 113 To configure VTP on a switch, you may need to use the following commands: set vtp What is this command for?
A. For enabling VTP pruning.
B. For determining management domain name
C. For selecting VTP version.
D. For verifying configuration.
E. For verifying configuration set. Answer: C
QUESTION 114 You are a Cisco Certified Engineer. You are configuring a switching solution. What command can be used to designate an interface as the management interface for MLSP packets (fill in the blank): Answer: mls rp management-interface Explanation: According to Cisco: To designate an interface as the management interface for MLSP packets, use the mls rp management-interface interface configuration command. Use the no version of the command to remove an interface as the management interface.
QUESTION 115 You are a Cisco Certified Engineer. You are configuring a switching solution. Why would you prefer to select VTP version 2 instead of VTP version 1?
A. to save VLAN configuration memory
B. None of the choices.
C. to reduce broadcast traffic carried on trunk lines.
D. to reduce the amount of configuration necessary.
E. to support token ring VLANs Answer: E Explanation: According to Cisco: Because a VLAN is essentially a broadcast domain, a Token Ring VLAN is slightly more complex than an Ethernet VLAN. In transparent bridging there is only one type of broadcast frame and therefore only one level of broadcast domain, but in source routing there are multiple types of broadcast frames that fall into two categories: Those that are confined to a single ring Those that traverse the bridged domain These two categories of broadcast frames result in a broadcast domain that is hierarchical in nature, as a local ring domain can exist only within a domain of all the inter-connected rings. In a Token Ring VLAN, logical ring domains are formed by defining groups of ports that have the same ring number. The IEEE calls such a port group a Concentrator Relay Function (CRF). On Catalyst switches, such a grouping of Token Ring ports is called a Token Ring CRF (TrCRF). The domain of inter-connected rings is formed using an internal multiport bridge function that the IEEE calls a Bridge Relay Function (BRF). On Catalyst switches, such a grouping of logical rings is called a Token Ring BRF (TrBRF).
QUESTION 116 Which of the following is true concerning setting up VLAN to use with ATM SVC (Choose all that apply)?
A. with the presence of an ARP server, neither the ARP or the connection table needs to be set up
B. when without an ARP server, an ARP table must be generated.
C. with the presence of an ARP server, both the ARP and the connection table needs to be set up
D. both the ARP table and connection table must be generated. Answer: A, B
QUESTION 117 Which of the following commands can you use to configure VLAN and VLAN trunking on a switch (Choose all that apply)?
A. set trunk
B. show trunk
C. clear trunk.
D. set vlan Answer: A, B, C, D
QUESTION 118 You are a Cisco Certified Engineer. You are configuring a switching solution. On a switch that participates in multilayer switching, what command can you use to show the MLS interfaces for a specific VTP domain (fill in the blank): Answer: show mls rp vtp-domain Explanation: According to Cisco: To show MLS interfaces for a specific VTP domain, use the show mls rp vtp-domain EXEC command. show mls rp vtp-domain [domain-name]
QUESTION 119 In order to allow for a particular flow for an MLS shortcut to be created, what condition must be met (choose all that apply)?
A. The same MLS-SE must see only the candidate packets
B. The same MLS-SE must see both the candidate and enabler packets
C. Different MLS-SE must see both the candidate and enabler packets
D. By using the flowpath list you can adjust the degree of similarity of these packets
E. By using the flowmask you can adjust the degree of similarity of these packets Answer: B, E
QUESTION 120 What is the VLAN default value for pruning (Choose all that apply)?
A. VLAN 1-1000 are pruning-eligible
B. VLAN 2-1000 are pruning-eligible
C. VLAN 1 are pruning-eligible D. VLAN 1 are not pruning-eligible Answer: B, D
QUESTION 121 You are a Cisco Certified Engineer. You are configuring a switching solution. When you apply an outgoing access list to an interface, what is likely to happen?
A. it will purge any entries for flows on that interface and records no new entries
B. it will generate excessive MLSP messages
C. it will record packets only if the administrator sets the MLS RP IP ACL command on the interface
D. it will result in no action taken Answer: A Explanation: According to Cisco: Traditionally, switches operated at Layer 2 only; switches switched traffic within a VLAN and routers routed traffic between VLANs. Catalyst 6000 family switches with the Multilayer Switch Feature Card (MSFC) can accelerate packet routing between VLANs by using Layer 3 switching (Multilayer Switching [MLS]). The switch first bridges the packet, the packet is then routed internally without going to the router, and then the packet is bridged again to send it to its destination. During this process, the switch can access control all packets it switches, including packets bridged within a VLAN. IOS ACLs access control routed traffic between VLANs, and VLAN ACLs (VACLs) access control all packets. Standard and extended IOS ACLs are used to classify packets. Classified packets can be subject to a number of features such as access control (security), encryption, policy-based routing, and so on. Standard and extended IOS ACLs are only configured on router interfaces and applied on routed packets. More information can be found at: this site
QUESTION 122 You are a Cisco Certified Engineer. You are configuring a switching solution. You set the maximum transmission unit size of IP packets sent on an interface. You want to restore the default. What command is appropriate (fill in the blank): Answer: no ip mtu Explanation: According to Cisco: To set the maximum transmission unit (MTU) size of IP packets sent on an interface, use the ip mtu interface configuration command. To restore the default MTU size, use the no form of this command. ip mtu bytes no ip mtu
QUESTION 123 What is the non token ring VLAN default value for the default port assignments?
A. VLAN A
B. VLAN ON
C. VLAN 1003
D. VLAN 1
E. VLAN 0Answer: D
QUESTION 124 Which of the following is true concerning VLAN to port association (Choose all that apply)?
A. ASIC enhances the performance of the association
B. VLAN membership is based on Port through port-to-VLAN association.
C. Routing table enhances the performance of the association
D. VLAN membership is based on Port through port-to-WAN ID association. Answer: A, B
QUESTION 125 You are a Cisco Certified Engineer. You are configuring a switching solution. An Ethernet media trunk link is configured and is operating between two Cisco switches. Each switch has identical modules, software revisions and VLAN configuration information. Spanning tree protocol is disabled on all VLANs. Problems have been identified regarding frames leaking between two VLANs. Which of the following is the most likely cause of this problem (Choose all that apply)?
A. The link is using IEEE 802.1 QUESTION NO: protocol
B. The link is using IEEE 802.1E protocol
C. Spanning tree is disabled
D. Not enough information to determine.
E. The native VLAN information is identical at each end of the link.
F. The native VLAN information is different at each end of the link. Answer: A, F Explanation: According to Cisco: With the introduction of the Cisco IOS IEEE 802.1 Support feature, Cisco IOS now supports 802.1Q VLAN encapsulation, in addition to the currently supported ISL and IEEE 802.10 SDE encapsulations. VLANs can now be implemented using 802.1Q encapsulation amoung switches that support this standard. IEEE 802.1Q support is currently available for Fast Ethernet interfaces. More information can be found at: this site
QUESTION 126 You are a Cisco Certified Engineer. You are configuring a switching solution. To find out if there is an active link state on a Catalyst port, what should you NOT check (Choose all that apply)?
A. Switch fan
B. Port's link LED of the Switching Module.
C. Switch RP
D. Switch slot
E. Switch backpane Answer: A, C, D, E Explanation: To find out if there is an active link state on a Catalyst port , check the port's link LED. In fact, you may find information on Cisco web site regarding the different switch models. You may also want to check their release notes.
QUESTION 127 To get rid of the existing configuration on a switch, what IOS command will you use?
A. the "clear config all" command
B. the "del config all" command
C. the "erase config all" command
D. the "clean config all" command Answer: A QUESTION 128 What is the token ring VLAN default value for the default port assignments?
A. VLAN 0
B. VLAN 1
C. VLAN 1003
D. VLAN ON
E. VLAN A Answer: C
QUESTION 129 You are a Cisco Certified Engineer. You are configuring a switching solution. Which of the following correctly describe the range of user-configurable ISL VLANs?
A. 1-1001
B. None of the choices.
C. 0-4095
D. there is no range
E. 0 - 1000 Answer: A Explanation: According to Cisco: The valid range of user-configurable ISL VLANs is 1-1001. The valid range of VLANs specified in the IEEE 802.1Q standard is 0-4095. In a network environment with non-Cisco devices connected to Cisco switches through 802.1Q trunks, you must map 802.1Q VLAN numbers greater than 1000 to ISL VLAN numbers. 802.1Q VLANs in the range 1-1000 are automatically mapped to the corresponding ISL VLAN. 802.1Q VLAN numbers greater than 1000 must be mapped to an ISL VLAN in order to be recognized and forwarded by Cisco switches.
QUESTION 130 You are a Cisco Certified Engineer. You are configuring a switching solution. You need to configure your set based distribution layer switching engine to participate in multilayer switching. What command must you use (fill in the blank): Answer: set mls enable Explanation: According to Cisco: Use the set mls command set to configure the MLS feature in the Catalyst 5000, 2926G, and 2926 series switches. set mls agingtime [agingtime] set mls disable set mls enable set mls include {route_processor_ip route_processor_name} set mls statistics protocol protocol port_num