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Cisco 642-742 Exam Syllabus Topics:

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

1. A customer using a 7925 phone reports that sometimes the music on hold does not come through or is choppy. The engineer checks the location history and notices it tends to occur toward the edge of the cell. The APs have their data rates set to 12Mbps as mandatory where all rates below are disabled. What is the cause of this issue?

A) the phone requires the 11Mbps rate
B) unicast is enabled
C) beacons have been disabled
D) mandatory data rates set too high

2. An engineer is designing a wireless infrastructure to support secured wireless access for Cisco 7925 series phones. What 802.1X authentication protocol would create the least overhead for authentication, while also securely transporting credentials?

A) PEAP-EAP-TLS
B) PEAP-EAP-GTC
C) EAP-MSCHAPv2
D) EAP-TLS
E) PEAP-EAP-MSCHAPv2
F) EAP-FAST

3. Refer to the exhibit.

An engineer has performed a debug on wireless voice. Which four conditions can be determined from the information that was gathered? (Choose four.)

A) Increasing the maximum RF bandwidth in the wireless LAN controller could resolve this issue.
B) Static CAC is configured.
C) LBCAC is configured.
D) Increasing the reserved roaming bandwidth in the wireless LAN controller could resolve this issue.
E) More than 1076 medium times remain.
F) The total number of calls allowed on the VoWLAN is 10.
G) Less than 1076 medium times remain.
H) The total number of calls allowed on the VoWLAN is 15

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 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.
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.

5. A customer recently placed 10 WLCs in a mobility group and now sees a large amount of additional traffic to and from the controller. What setting should be changed to reduce the traffic?

A) Mobility Anchor Keep Alive Count
B) Mobility Unicast Messaging
C) Mobility Anchor Keep Alive Interval
D) Mobility Multicast Messaging

Solutions: