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Cisco 642-742 Exam Syllabus Topics:

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

1. Which of these statements best describes Cisco Centralized Key Management?

A) It enables the controller to send directed roam requests to a client in situations when the controller can better service the client on a different AP than the one to which the client is associated.
B) By caching their credentials, it helps clients save scanning time when looking for a new AP to join.
C) It allows wireless clients to cache their credentials so that, while they are roaming, they do not need to reauthenticate to the wireless infrastructure.
D) It allows the wireless infrastructure to cache the credentials, thus eliminating the need to conduct a full reauthentication when roaming.

2. Refer to the exhibit.

A customer with a high-density deployment has called stating there have been voice quality issues with roaming clients. Given the configuration, what is the problem?

A) DTIM should be configured to 2 on both 2.4 and 5ghz to aid in delivery of wireless frames during roaming.
B) Static IP tunneling should be enabled so that the voice clients can be tunneled properly.
C) Band-Select has not been enabled and is allowing the voice client to switch bands when roaming.
D) Load-Balancing is enabled and sending reason code 17 to roaming voice clients.

3. A support technician is reviewing wireless configurations for a voice network. They notice the off channel scan defer has been set for 4, 5, and 6. What would occur if the technician was to deselect 5 and 6?

A) The access points would only go off channel to scan if there were devices transmitting with a UP of 4.
B) Cameras transmitting with a UP of 4 will cause the access point to go off channel to scan.
C) Wireless clients transmitting at a UP of 5 will cause the access point to cease going off channel to scan.
D) The access points would go off channel to scan whether there were voice devices transmitting or not.

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

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

Solutions: