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

1. A downstream packet containing a DSCP value arrives at the WLC Ethernet interface from the wired source network. The WLC is configured for QoS WLAN 802.1p mapping. How does the WLC treat the CAPWAP QoS marking when leaving the controller interface for the respective AP and final wireless client destination?

A) The outer CAPWAP CoS is marked and capped while the inner DSCP maintains the original marking.
B) No outer CAPWAP or inner QoS tagging is applied.
C) No outer CAPWAP QoS tag is applied, but the original DSCP is maintained inside CAPWAP.
D) The outer CAPWAP DHCP is marked and capped without any inner DSCP value.

2. What is the difference between the QoS values on the wired and wireless sides of a WLAN?

A) The wireless side of the network uses WMM, which carries voice in the Platinum queue with a CoS of 7. The wired side of the network uses CoS/DSCP values of 5 and 40.
B) The wireless side of the network uses WMM, which carries voice in the Platinum queue with a CoS of 6. The wired side of the network uses CoS/DSCP values of 5 and EF.
C) The wireless side of the network uses WMM, which carries voice in the Gold queue with a CoS of 7. The wired side of the network uses CoS/DSCP values of 5 and EF.
D) The wireless side of the network uses WMM, which carries voice in the Gold queue with a CoS of 6. The wired side of the network uses CoS/DSCP values of 5 and EF.

3. Your Cisco Unified Wireless IP Phones 7921G and 7925G are associated with the VoWLAN at your branch office. When they attempt to place a call, the call fails to go through and you receive a fast busy tone. What is the issue?

A) Automatic alternate routing has been invoked.
B) The local gateway rejected the call because of high IP WAN utilization.
C) The Cisco Unified Communications Manager cluster invoked CAC to preserve IP WAN voice bandwidth.
D) The wireless phones failed to register with the Cisco Unified Communications Manager cluster.

4. 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) Switches between the Cisco WLC and APs are not configured for IGMP snooping.
D) This is normal operation and cannot be changed.
E) APs are not configured for IGMP snooping.

5. A customer recently placed 10 WLCs in a mobility group and now sees a large amount of additional traffic to and from the controller. What setting should be changed to reduce the traffic?

A) Mobility Anchor Keep Alive Interval
B) Mobility Multicast Messaging
C) Mobility Anchor Keep Alive Count
D) Mobility Unicast Messaging

Solutions: