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Cisco 642-742 Exam Syllabus Topics:

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

1. The AP has been properly configured for a VoWLAN survey. The RF environment contains a noise of -87 to -90 dBm. What would be the target value for the cell edge reading?

A) -55 dBm
B) -60 dBm
C) -73 dBm
D) -67 dBm
E) -70 dBm
F) -62 dBm

2. 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 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.
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 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.
D) 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.

3. The customer has deployed C7260 phones with clients connected to them. What switch feature could be enabled to distinguish IP voice traffic from client data traffic?

A) WME
B) QoS routing
C) Voice VLAN
D) QBSS
E) Weighted Queuing

4. Which DHCP option is used by Vocera badges to reach a Cisco Unified Communications Manager?

A) Set the option to 150.
B) No option is required.
C) Set the option to 43.
D) Set the option to 66.

5. Which two statements best describe streaming video? (Choose two.)

A) Video streams require a high speed of compression only.
B) H.323 codecs are commonly used.
C) MPEG codecs are commonly used.
D) Video streams require maximum quality compression and decompression.

Solutions: