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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 has requested help in configuring priority for emergency calls. What setting needs to be enabled to allow for wireless phones to make emergency calls no matter the load on the access point?

A) expedited bandwidth
B) SIP CAC
C) reserved roaming bandwidth reservation
D) static CAC reservation

2. Users are experiencing poor audio quality when calling from their 7925 series VoIP Phones. Call quality is exceptional from wired to wired phones, but not from wired to wireless phones. The wired network has QoS deployed properly and the SSID is configured with Platinum QoS. What should be verified to troubleshoot the issue?

A) The controller is marking the 802.1p tag of 3, the AP switchport has been configured to trust DSCP, and the controller's switchport to trust CoS.
B) The controller is marking the 802.1p tag of 5, the AP switchport has been configured to trust DSCP, and the controller's switchport to trust CoS.
C) The controller is marking the 802.1p tag of 4, the AP switchport has been configured to trust CoS, and the controller's switchport to trust DSCP.
D) The controller is marking the 802.1p tag of 6, the AP switchport has been configured to trust CoS, and the controller's switchport to trust DSCP.

3. An engineer finishes configuring a voice over wireless deployment. However, during the
testing phase, the 7925 series phones are not able to complete calls and display Network Busy. CAC has been configured for the wireless system. What action should the engineer take next to troubleshoot the issue?

A) turn off traffic stream metrics
B) ensure the lowest data rate is 12Mbps and set to Mandatory, and verify there is enough allocated bandwidth to support voice calls
C) check that the lowest data rate is 5.5Mbps to support TSPEC, and verify that the SSID is set to Platinum
D) modify the SIP CAC Access Control List on the controller to permit voice traffic for 7925 phones

4. Refer to the exhibit.

A customer is looking to deploy local radius authentication on their WLAN controller. After configuration has been completed, the administrator found that computers could authenticate; however, the VoIP phones could not. What is the problem given the output?

A) EAPOL-Key Max Retries should be set to 12 to ensure the wireless phone can authenticate.
B) The EAP request-timeout is too short for the wireless phone to process the PAC from the WLAN controller.
C) EAPOL-Key timeout should be set to at least 20,000 Milliseconds to allow the PAC to be processed.
D) The EAP Broadcast Key interval is set to 1 hour however should be 8 hours.

5. What protocol can be enabled to listen in on IPv4 multicast streams and maintain a map of what each client requests on a wireless LAN controller?

A) IGMP
B) MLD
C) PAP
D) ICMP
E) NTP
F) SIP

Solutions: