Cisco 642-742 : Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0

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

1. When inspecting the WCS voice readiness tool, an engineer notices yellow areas. What step should you take to fix this?

A) change the channel on some APs in the area to reduce co-channel interference
B) add additional APs to the coverage area to increase RSSI
C) increase the power of APs in the yellow area to increase RSSI
D) remove some APs in the area to reduce co-channel interference

2. WLCs v7.0 have been configured for multicast and IGMP snooping enabled, with all other parameters set to default. A wireless client actively receiving a multicast group roams from WLC1 to WLC2, both of which are configured for the client IP subnet. Which statement describes the roaming process?

A) There is no required action from the client and WLC2 becomes foreign controller and WLC1 becomes anchor controller.
B) A new IGMP packet is required from the client and WLC2 becomes foreign controller and WLC1 becomes anchor controller.
C) There is no required action from the client and WLC2 becomes the local anchor controller.
D) A new IGMP packet is required from the client and WLC2 becomes the local anchor controller.

3. What three minimal configurations are required for a correctly scaled multicast configuration using WLC v7.0? (Choose three.)

A) Enable AP multicast mode for Unicast
B) Configure IGMP timeout for 60 seconds
C) Configure IGMP query interval for 20 seconds
D) Enable IGMP snooping
E) Enable WLAN multicast VLAN feature
F) Enable AP multicast mode for multicast
G) Enable global multicast mode

4. Which three options are benefits of U-APSD? (Choose three.)

A) optimized power-save mode periods
B) priority bandwidth and polling
C) bandwidth reservation
D) increased call capacity
E) synchronization of the transmission and reception of voice frames

5. When calculating bandwidth usage for an application, what two values represent the minimum and maximum 802.11 overhead per frame? (Choose two.)

A) 24 bytes
B) 48 bytes
C) 56 bytes
D) 60 bytes
E) 64 bytes
F) 16 bytes
G) 28 bytes

Solutions: