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Cisco 642-742 Exam Syllabus Topics:

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

Question 1

Refer to the exhibit.

Voice signaling traffic is being sent upstream using a WLAN configured for bronze QoS. Assume that Layer 3 switches between the controller and the AP use the default and recommended CoS-to-DSCP and DSCP-to-CoS maps. What CAPWAP QoS markings are used in the header at location 1?

A. DSCP 46 and CoS 5
B. CoS 3
C. DSCP CS1 and CoS 1
D. DSCP AF31
E. DSCP 46
F. DSCP CS1
G. DSCP AF31 and CoS 3
H. CoS 1

Question 2

An engineer is configuring 802.11e to 802.1p markings for QoS on a Cisco WLC. What marking is correct for the AC_VI category?

A. 6
B. 5
C. 4
D. 3

Question 3

Wireless IP phone users are complaining that during the day there are certain points in the facility where voice quality is poor. How should you troubleshoot this issue?

A. Perform a detailed analysis of the voice call quality from end to end.
B. Go into the Cisco WLC and monitor client details for WMM issues.
C. Ask the users to capture voice quality statistics from their wireless IP phones the next time they have issues.
D. Locate the APs in question and use the Cisco WLC to enable TSM to capture WLAN voice traffic statistics.

Question 4

A customer has requested their wireless infrastructure to be able to provide voice phones with the ability to indicate to a wireless controller that the call is urgent and needs to be placed immediately. What solution should be recommended to the customer?

A. configure expedited bandwidth and change the 802.1p value to 7 for platinum QoS
B. reconfigure the SSID for KTS based CAC to allow for a more granular handling of voice traffic
C. enable load-based CAC for voice networks and configure expedited bandwidth
D. disable load-based CAC for voice networks to turn off the controllers monitoring of the access point's load, allowing for as many voice calls to be placed as necessary

Question 5

Which one of these options best describes the ideal WLAN design for wireless VoIP clients?

A. smaller cells with APs in the inner areas using omnidirectional antennas, and APs on the outer walls using directional antennas facing inward
B. larger cells with higher speeds and WPA2 security enabled to ensure the best possible coverage
C. smaller cells with all configurable speeds to ensure that all clients (802.11a/b/g) can associate to the wireless infrastructure
D. smaller cells with higher speeds and CAC-enabled prioritization of WMM clients

Solutions: