CCNP: Building Multilayer Switched Networks Chapter 6

Module 6 Exam
Module 6 ‐ 1 ‐
1. Wireless systems can support VLANs via the use of which technology?
· interleaving RF Channels
· multiple SSIDs (*)
· 802.1x
· CSMA/CD
· TDM
· ISL
2. What is a program that ensures interoperability of third party wireless products with Cisco
WLAN infrastructure products?
· ACAU
· ICAW
· WiFi
· CCX (*)
· IEEE
3. Refer to the exhibit. Access point AP1 is wired to the LAN. Access point AP2 is not wired to
the LAN. There is a 50% overlap between access point AP1 and AP2. Both access points are
using channel 1. Of which wireless topology is this an example?
· access
· workgroup
· mesh networking
· repeater (*)
· wireless/voice hybrid
· wireless/QoS hybrid
Module 6 Exam
Module 6 ‐ 2 ‐
4. Refer to the exhibit. What are two of the elements that work together in the Cisco Unified
Wireless Design for an enterprise‐class wireless solution? (Choose two.)
· WLAN controllers that are integrated into all major Cisco switching and routing
platforms (*)
· individually managed access points that provide layers of security and guarantee that
compromising one device will not allow access to the core infrastructure
· a single VLAN that securely handles guest, intranet, internal and VoWLAN wireless traffic
streamlining management functionality
· security, scalability, reliability, ease of deployment, and management for all the
wireless elements of the network (*)
· static RF management that guarantees that the network will stay secure
5. What is a requirement when configuring an autonomous access point (AP) using the Cisco
IOS command line via Telnet or Secure Shell Protocol (SSH)?
· enabling the Cisco Discovery Protocol (CDP)
· configuring an IP address on the access point (AP) (*)
· configuring authentication between the wireless client and the access point (AP)
· using the CiscoWorks Wireless LAN Solution Engine (WLSE)
Module 6 Exam
Module 6 ‐ 3 ‐
6. Which two statements are true about requirements for Layer 3 roaming within a wireless
network? (Choose two.)
· Lightweight access points and controllers are required to implement Layer 3 roaming.
· Lightweight access points and controllers do not provide support for Layer 3 roaming.
· The roaming clients are configured with a fixed IP address. (*)
· Routers tunnel traffic from a roaming client to their correct subnet. (*)
· Movement between access points is handled by the access points via the use of the
Inter‐Access Point Protocol.
7. Refer to the exhibit. Which three statements are correct about communication between the
lightweight APs and the wireless controller? (Choose three.)
· Initial configuration communication between the APs and the controller is via broadcast
messages.
· The APs must be preconfigured with a static IP address or receive it via DHCP before
they can communicate with the controller. (*)
· The APs must be preconfigured with static SSIDs before they can communicate with the
controller.
· Configuration information from the controller to the AP is encrypted in UDP packets.
(*)
· Data traffic between the AP and the controller is transmitted unencrypted. (*)
· The router must be configured to forward broadcast messages from the AP to the
controller.
Module 6 Exam
Module 6 ‐ 4 ‐
8. Refer to the exhibit. Which two statements are true about LWAPP Layer 3 mode operation?
(Choose two.)
· The router must be configured to forward UDP broadcasts from the access point to the
controller.
· The switch must provide an IP address to the access points.
· The access point discovers the controller management IP address via DHCP. (*)
· DNS must be used for the access point to resolve the controller IP address.
· Layer 3 mode of LWAPP is required in the configuration that is shown. (*)
· Layer 2 mode of LWAPP is required in the configuration that is shown.
Module 6 Exam
Module 6 ‐ 5 ‐
9. Refer to the exhibit. Which two statements about the information in the exhibit are true?
(Choose two.)
· Although the signal strength is good, the client will not be able to access the network
because it has not yet authenticated with the AP.
· The client is connected through a basic service set (BSS). (*)
· The client is connected to an 802.11a AP.
· The client is connected to an 802.11b AP.
· The client is using 802.1x EAP.
· The client received its channel information from the AP. (*)
10. Which two statements about WLAN antennas are true? (Choose two.)
· Accidentally connecting a 5 GHz antenna to a 2.4 GHz radio will damage the unit.
· All FCC rules and all antennas are measured against a theoretical dipole antenna.
· Cisco connectorized 2.4 GHz (802.11b/g) radios use an RP‐TNC connector. (*)
· Cisco connectorized 5‐GHz (802.11a) radios use the same radio connector as 2.4 GHz
(802.11b/g) radios. (*)
· Directionality is the amount of increase in energy that an antenna appears to add to an
RF signal.
· The 2‐dBi Rubber Duck dipole antenna for 2.4‐GHz frequency band is an example of a
directional antenna.
11. What is true about the differences between wireless LANs (WLANs) and LANs?
· A VPN connection that uses IPsec is not possible with WLANs.
· WLANs do not use MAC addresses.
· WLANs use CSMA/CA rather than CSMA/CD because WLANs operate at half‐duplex.
· WLANs use CSMA/CA rather than CSMA/CD because WLANs cannot detect collisions.
(*)
· WLANs use CSMA/CD rather than CSMA/CA because wireless LANs operate on multiple
frequencies.
· WLANs use CSMA/CD rather than CSMA/CA because WLANs operate at full‐duplex.
Module 6 Exam
Module 6 ‐ 6 ‐
12. Which IEEE standard specifies improved security, encryption, and authentication for WLANs?
· 802.11e
· 802.11i (*)
· 802.11n
· 802.11q
· 802.11s
13. What is a feature of the Cisco Compatible Extensions (CCX) program for wireless LAN client
devices?
· WPA1 security
· open standard
· certified out‐of‐the‐box compatibility (*)
· low cost licensing of Cisco Aironet innovations
· alteration of the user licensing option to unlimited
14. How many channels are licensed for 802.11b operation by the European
Telecommunications Standards Institute (ETSI)?
· 9
· 11
· 13 (*)
· 15
15. How many profiles can be created and managed under the Profile Management tab in the
Aironet Desktop Utility (ADU)?
· 4
· 8
· 16 (*)
· 32
· None, because profiles are created and managed under the Current Status tab.