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

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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) 802.11 fragment burst
C) 802.11e priority contention window
D) Extended Interframe Space

2. DRAG DROP

3. A Cisco WLC v7.0 is properly configured for 802.11n and multicasting video without the optional Cisco VideoStream. Which three options best describe the frames that are sent from the AP to the wireless clients? (Choose three.)

A) unicast to subscribed clients
B) After startup, throughput is consistent.
C) multicast to subscribed clients
D) After startup, throughput can vary over time.
E) no retransmission
F) retransmission upon failure of delivery

4. A network engineer is deploying wireless voice with a 20% overlap at -67dBm. After testing, the cell edge is determined to be 50 feet from the AP. How far away should the next AP be placed?

A) 100 feet
B) 90 feet
C) 70 feet
D) 60 feet
E) 80 feet

5. A corporation has a Cisco Unified Wireless Network that has been deployed for voice coverage. The wireless data rates have been tuned to mandatory rates of 18 Mbps and 36 Mbps. Some wireless clients have been experiencing drops streaming multicast video while moving throughout the building. What is the cause of the drop in video?

A) Clients are not roaming due to coverage. This is causing the multicast data to drop due to the client re-associating often.
B) Clients are connected at 18Mbps; however, other clients are connecting at 12Mbps and are causing the multicast video to degrade.
C) Clients are maintaining a 12Mbps rate and cannot receive the stream at 18Mbps.
D) Clients are roaming at lower data rates and are not maintaining 36Mbps connectivity.

Solutions: