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Cisco 642-742 Exam Syllabus Topics:

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

1. Which mechanism detects if VoWLAN clients are experiencing poor signal-to-noise ratio values and causes the power of APs to increase as needed in order to rectify signal-tonoise issues?

A) 802.11h
B) RSSI
C) CHD
D) QBSS
E) CCA

2. 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) SIFS
E) APSD
F) 802.11a

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

A) It allows wireless clients to cache their credentials so that, while they are roaming, they do not need to reauthenticate to the wireless infrastructure.
B) It allows the wireless infrastructure to cache the credentials, thus eliminating the need to conduct a full reauthentication when roaming.
C) 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.
D) By caching their credentials, it helps clients save scanning time when looking for a new AP to join.

4. Which two multicast modes are valid for use with Ethernet bridging on a mesh AP? (Choose two.)

A) in
B) out
C) mesh bridge in
D) bidirectional bridge
E) regular

5. Using proper VoWLAN design practice, what would be a reasonable total number of calls for a properly designed 802.11a cell to ensure call quality?

A) 14
B) 27
C) 4
D) 20
E) 25
F) 7

Solutions: