Cisco 642-742 Exam : Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0

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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 has fired up a packet capture to try to determine if there are malformed frames being transmitted. They notice that there is a station transmitting frames consecutively without giving other stations a chance to transmit. What capability is the engineer witnessing?

A) Aggregated MPDU
B) 802.11e priority contention window
C) Extended Interframe Space
D) 802.11 fragment burst

2. A Cisco WLC v7.0 is configured with the default setting for wired and wireless QoS. When a wireless client sends a voice packet to the AP, how does the AP mark the outer CAPWAP header when the packet is sent to the Cisco WLC v7.0?

A) The AP uses the wireless priority value to create both a matching 802.1p and DSCP value in the CAPWAP header.
B) The AP does not match the value to the CAPWAP header, which results in best effort.
C) The AP uses the wireless priority value to create a matching DSCP value in the CAPWAP header.
D) The AP uses the wireless priority value to create a matching 802.1p value in the CAPWAP header.

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

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

4. A customer has upgraded to 802.11n with ClientLink, set to defaults, to improve video performance on legacy clients. They notice that ClientLink is not kicking in for an 802.11a client with 36 Mb data rate and -55db RSSI. What is the problem?

A) data rate too low
B) RSSI too low
C) data rate too high
D) RSSI too high

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

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

Solutions: