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Cisco 642-742 Exam Syllabus Topics:

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

1. A Cisco WLC v7.0 is properly configured for 802.11n and multicasting video without the optional Cisco VideoStream. Which three options best describe the frames that are sent from the AP to the wireless clients? (Choose three.)

A) retransmission upon failure of delivery
B) After startup, throughput can vary over time.
C) no retransmission
D) unicast to subscribed clients
E) multicast to subscribed clients
F) After startup, throughput is consistent.

2. You have recently enabled multicast on your WLAN. When users join the multicast sessions, you see the traffic utilization on all the APs that are controlled by the Cisco WLC v7.0 increase, which includes those APs where there are no multicast clients.
Which configuration parameter needs to be verified to prevent APs with no subscribed multicast clients from receiving traffic?

A) The router interface that services the multicast needs to be configured for the sparse-dense multicast mode of operation.
B) The Cisco WLC is not configured for IGMP snooping.
C) APs are not configured for IGMP snooping.
D) Switches between the Cisco WLC and APs are not configured for IGMP snooping.
E) This is normal operation and cannot be changed.

3. A customer using a 7925 phone reports that sometimes the music on hold does not come through or is choppy. The engineer checks the location history and notices it tends to occur toward the edge of the cell. The APs have their data rates set to 12Mbps as mandatory where all rates below are disabled. What is the cause of this issue?

A) beacons have been disabled
B) unicast is enabled
C) the phone requires the 11Mbps rate
D) mandatory data rates set too high

4. A wired packet that is marked for QoS priority CS4 arrives on VLAN-4 at Cisco WLC v7.0, with a destination of a WLAN SSID-4. The Cisco WLC is configured for the wired and
wireless QoS level of Silver. The infrastructure routers and switches have incorrect QoS configurations. They have mismarked the CAPWAP outer header to a QoS priority EF.
Which statement is true about how the packet is sent from the AP to the final WMM wireless client?

A) The AP sends the packet with an 802.11 priority tag of 5 (Gold).
B) The AP sends the packet with an 802.11 priority tag of 0 (Best Effort).
C) The AP sends the packet with an 802.11 priority tag of 3 (Silver).
D) The AP sends the packet with an 802.11 priority tag of 6 (Platinum).

5. A network engineer is deploying wireless voice with a 20% overlap at -67dBm. After testing, the cell edge is determined to be 50 feet from the AP. How far away should the next AP be placed?

A) 60 feet
B) 90 feet
C) 80 feet
D) 100 feet
E) 70 feet

Solutions: