Cisco CCNP Enterprise 300-425 Questions & Answers

• Question 221:

  An engineer must ensure that the new wireless LAN deployment can support seamless roaming between access points using a standard based on an amendment to the 802.11 protocol. Which protocol must the engineer selects?

  A. 802.11i

  B. 802.11ac

  C. 802.11r

  D. 802.11e

  Correct Answer: C

  Reference:

  

• Question 222:

  A wireless engineer is designing a wireless network to support real-time applications over wireless. Which IEEE protocol must the engineer enables on the WLC so that the number of packets that are exchanged between an access point and client are reduced and fast roaming occurs?

  A. 802.11w

  B. 802.11r

  C. 802.11i

  D. 802.11k

  Correct Answer: B

• Question 223:

  A network administrator of a global organization is collapsing all controllers to a single cluster located in central Europe. Which concern must addressed?

  A. Some channels may not be available consistently across the organization.

  B. Different RF policies per office are not available in this configuration.

  C. Syslog must be configured to the time-zone of the NMS platform.

  D. Centralized controllers cannot uniformly authenticate global users.

  Correct Answer: C

  Reference:

  https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/86/b_Cisco_Wireless_LAN_ Controller_Configuration_Best_Practices.html

• Question 224:

  An engineer is designing a wireless deployment for a university auditorium. Which two features can be used to help deal with the issues introduced by high AP count? (Choose two.)

  A. TSPEC

  B. RXSOP

  C. TPC

  D. LSS

  E. DFS

  Correct Answer: CE

  Reference: https://www.cisco.com/c/en/us/support/docs/wireless-mobility/80211/200069-Overview-on-802-11h-Transmit-Power-Cont.html

• Question 225:

  Which UDP port numbers are used for exchange mobility packets in an AireOS wireless deployment?

  A. UDP 16666 for control plane, EoIP (IP protocol 97) for data plane

  B. UDP 16668 for control plane, UDP 16667 for data plane

  C. UDP 16667 for control plane, UDP 16666 for data plane

  D. UDP 16666 for control plane, UDP 16667 for data plane

  Correct Answer: D

  Reference:

  

• Question 226:

  A customer asks an engineer to explain the concept of mobility domains and mobility groups. Which statement does the engineer respond with?

  A. A mobility group does not constrain the distribution of security context of a client and also does not constrain AP fail-over between controllers when the WLC are in the same mobility domain.

  B. If WLCs are in the same mobility domain, they communicate with each other but, if an anchor WLC is present it must be in the same mobility domain for communication to be possible.

  C. If WLCs are in the same mobility domain, they communicate with each other. Mobility groups constrain the distribution of security context of a client and also constrain AP fail-over between controllers.

  D. WLCs do not need to be in the same mobility domain to communicate with each other. Mobility groups constrain the distribution of security context of a client and also constrain AP fail-over between controllers.

  Correct Answer: C

  Reference: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-0/configuration-guide/b_cg80/b_cg80_chapter_010011.html