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Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Sample Questions:

1. A customer is having issues streaming video over wireless in a few high-density areas of their campus. After further investigation, the administrator has singled out the issue pertains to the clients associated to 802.11b/g only access points. The rest of the campus is covered in 802.11n access points. What is a possible reason for the issue with video streaming on the 802.11b/g access points as opposed to the 802.11n access points?

A) Due to the High-Density environment, there was high-utilization of the wireless spectrum. With 802.11n. the access points are able to aggregate the MSDU and MPDU frames into A-MSDU and A-MPDU frames, utilizing less airtime to transfer data.
B) The wireless controller was denying the client access to the video due to multicast-direct supporting the PHY rate of 48000 that the 802.11b/g client could not handle.
C) The clients could not transmit data at the highest mandatory rate of 54 Mbps due to limitations with 802.11b/g. This data-rate is only possible when transmitting at 802.11n speeds.
D) The wireless clients were all transmitting at 802.11b data rates and would have operated properly had they been transmitting and receiving at 802.11g rates.

2. Which of these statements best describes Cisco Centralized Key Management?

A) It enables the controller to send directed roam requests to a client in situations when the controller can better service the client on a different AP than the one to which the client is associated.
B) It allows wireless clients to cache their credentials so that, while they are roaming, they do not need to reauthenticate to the wireless infrastructure.
C) It allows the wireless infrastructure to cache the credentials, thus eliminating the need to conduct a full reauthentication when roaming.
D) By caching their credentials, it helps clients save scanning time when looking for a new AP to join.

3. Which DHCP option is used by Vocera badges to reach a Cisco Unified Communications Manager?

A) Set the option to 66.
B) No option is required.
C) Set the option to 43.
D) Set the option to 150.

4. After enabling multicast direct on a WLAN set to Gold QoS, an engineer notices clients are not receiving the video correctly. What setting will correct this issue?

A) increase RRC Priority of Stream
B) decrease RRC Priority of Stream
C) change WLAN QoS to Platinum
D) enable best effort QoS Admission
E) disable best effort QoS Admission
F) change WLAN QoS to Silver

5. A customer is deploying a few remote sites and has decided to use FlexConnect mode for the wireless access points. The customer needs to have seamless roaming for the voice clients at these sites. What two configurations need to be implemented to guarantee roaming? (Choose two)

A) centrally switched SSIDs
B) FlexConnect Groups
C) OKC/PKC
D) CCKM
E) 802.11r

Solutions: