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Cisco 642-742 Exam Syllabus Topics:

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

1. 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

2. Which two statements describe a dual-mode phone, such as the Apple iPhone 4S with iOS 5.0, in relation to Cisco VoWLAN? (Choose two.)

A) The default software enables voice on VoWLAN.
B) It contains dual 2.4-GHz and 5-GHz radio.
C) It requires additional software to enable VoWLAN.
D) It contains dual cellular and 2.4-GHz radio.
E) It contains dual cellular and 5-GHz radio.

3. A packet arrives with a decimal value of 12. Which AF class does the packet belong to, and what is the drop probability of the packet? (Choose two.)

A) AF3
B) high drop probability
C) AF4
D) medium drop probability
E) AF2
F) AF1
G) low drop probability

4. Refer to the exhibit.

What two items need to be supported on the VoWLAN phones in order to take full advantage of this WLAN configuration? (Choose two.)

A) 802.11e
B) 802.11r
C) WMM
D) 802.11a
E) APSD
F) SIFS

5. A network engineer is viewing the QBSS information in a packet sniff. Which two QBSS characteristics are crucial for successful troubleshooting? (Choose two.)

A) When the client CAC limit is supported, information element number 1 is sent out in the beacons and probe responses on the bg radios.
B) When only WMM is enabled, information element number 1 QBSS Load information element is sent out in the beacons and probe responses.
C) When only WMM is enabled, information element number 2 QBSS Load information element is sent out in the beacons and probe responses.
D) When the client CAC limit is supported, information element number 2 is sent out in the beacons and probe responses on the bg radios.

Solutions: