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Cisco 642-742 Exam Syllabus Topics:

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

Question 1

A VoWLAN site survey was performed and equipment installed based on recommended design guidelines. Which two statements describe reasons to perform a post-deployment survey? (Choose two.)

A. There is insufficient information about the number of people in the area when the survey is performed.
B. There are elevator shafts.
C. There is insufficient information by AirMagnet VoFi Analyzer.
D. There are changes in temperature in the indoor environment.
E. There are roaming pathways.

Question 2

Which two configurations can resolve one-way audio in WLANs? (Choose two.)

A. admission control
B. Platinum QoS in the WLAN
C. maximum transmit power
D. TPC on AP
E. DTPC

Question 3

A customer has configured a wireless LAN controller and set the 802.11a/n data rates. All rates are enabled where 5.5 Mbps, 11 Mbps, and 24 Mbps are set to Mandatory. What will APs send over the 24 Mbps data rate?

A. DTPC support
B. multicast broadcast
C. channel announcements
D. beacons

Question 4

A customer is having issues streaming video over wireless in a few high-density areas of their campus. After further investigation, the administrator has singled out the issue pertains to the clients associated to 802.11b/g only access points. The rest of the campus is covered in 802.11n access points. What is a possible reason for the issue with video streaming on the 802.11b/g access points as opposed to the 802.11n access points?

A. The wireless controller was denying the client access to the video due to multicast-direct supporting the PHY rate of 48000 that the 802.11b/g client could not handle.
B. Due to the High-Density environment, there was high-utilization of the wireless spectrum. With 802.11n. the access points are able to aggregate the MSDU and MPDU frames into A-MSDU and A-MPDU frames, utilizing less airtime to transfer data.
C. The wireless clients were all transmitting at 802.11b data rates and would have operated properly had they been transmitting and receiving at 802.11g rates.
D. The clients could not transmit data at the highest mandatory rate of 54 Mbps due to limitations with 802.11b/g. This data-rate is only possible when transmitting at 802.11n speeds.

Question 5

After implementing 802.11n SGI in a noisy environment increased interference is noted, at what level would the interference be introduced by the change?

A. ACKs
B. packets
C. symbols
D. headers

Solutions: