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Cisco 642-742 Exam Syllabus Topics:

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

Question 1

Clients are experiencing artifacts in multicast video even though the network was recently upgraded to 802.11n APs. What three configuration changes will be most effective to improve performance? (Choose three.)

A. increase mandatory data rate
B. enable Call Admission Control
C. increase QoS marking on multicast
D. enable VideoStream
E. enable 40 MHz wide channels
F. disable Multicast Messaging

Question 2

An engineer has installed a new voice WLAN. Which three configurations would the engineer verify for QoS on the controller? (Choose three.)

A. DHCP address assignment required
B. IEEE 802.1X and Cisco Centralized Key Management
C. client band select
D. Platinum QoS for the VoWLAN
E. client load balancing
F. WMM allowed

Question 3

When Vocera badges communicate from badge to badge, which voice codec is used?

A. G.723
B. G.729A
C. G.711
D. the Vocera proprietary codec
E. G.729B

Question 4

Using proper VoWLAN design practice, what would be a reasonable total number of calls for a properly designed 802.11g cell to ensure call quality?

A. 25
B. 20
C. 4
D. 27
E. 14
F. 7

Question 5

You have recently added Cisco Unified Wireless IP Phones 7921G and 7925G to your branch office. The new wireless and wired IP phones are experiencing poor call quality when receiving calls across the IP WAN from the remote HQ. What is the most likely issue?

A. The Cisco Unified Communications Manager bandwidth for the IP WAN link is not properly configured and is allowing more calls than the link can accommodate.
B. The Cisco Unified Communications Manager gatekeeper-controlled CAC has been set too low, resulting in poor call quality.
C. The Cisco Unified Communications Manager bandwidth settings have not been increased to support the new wireless IP phones.
D. The Cisco Unified Communications Manager bandwidth is set too low, resulting in poor call quality.

Solutions: