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

1. Clients are experiencing artifacts in multicast video even though the network was recently upgraded to 802.11n APs. What three configuration changes will be most effective to improve performance? (Choose three.)

A) enable 40 MHz wide channels
B) enable VideoStream
C) disable Multicast Messaging
D) increase mandatory data rate
E) increase QoS marking on multicast
F) enable Call Admission Control

2. Which two statements are correct if IGMP snooping is enabled on a Cisco WLC v7.0?
(Choose two.)

A) The router IGMP table is updated with the IP address of the wireless clients as the last reporter.
B) The IGMP packets from the wireless clients are forwarded to the router without modifications.
C) The IGMP packets from the wireless clients are received at the WLC and are used to update the router via a Cisco Group Management Protocol update from the Cisco WLC.
D) The IGMP packets from the wireless clients are received at the Cisco WLC, which generates a query for the client.
E) The router IGMP table is updated with the IP address of the Cisco WLC as the last reporter.

3. What is the best practice for configuring data rates for an 802.11b VoWLAN deployment?

A) Configure a mandatory data rate of 6 Mb/s. Disable data rates below 6 Mb/s and configure all other data rates as supported.
B) Configure mandatory data rates of 11 and 54 Mb/s. Disable data rates below 6 Mb/s and all other data rates as supported.
C) Configure a mandatory data rate of 12 Mb/s. Disable data rates below 12 Mb/s and all other data rates as supported.
D) Configure a mandatory data rate of 11 Mb/s. Disable data rates below 11 Mb/s and all other data rates as supported.

4. An engineer notices that the batteries on a Cisco 792X series wireless phone are draining quite a bit even while not placing calls. What should be changed on the SSID to fix this?

A) set DTIM to 2 on the operational band of the voice clients
B) enable U-APSD on the WLAN to save power
C) enable Multicast Direct to cut down on the multicast processing
D) set P2P to forward down-stream so that clients are not interfering with each other

5. A network engineer is configuring CAC on a WLC. If CAC is configured with 85% of the total radio bandwidth on a 5-GHz radio, how many clients can be accommodated?

A) 15
B) 5
C) 12
D) 22

Solutions: