642-742 무료 덤프문제 온라인 액세스

Refer to the exhibit.

A controller has been completely configured to support high definition video over wireless. During the testing phase, a packet capture shows the video-stream traffic on the wire as best effort. What needs to be changed in the configuration to support QoS tags properly?

• A.add the line mls qos trust device wlc
• B.add the line mls qos trust cos
• C.add the line priority queue in
• D.add the line mls qos trust dscp

Which two statements best describe video conferencing? (Choose two.)

• A.H.323 codecs are commonly used.
• B.MPEG codecs are commonly used.
• C.Video streams require high-speed compression and decompression.
• D.Video streams require maximum quality compression and decompression.

What is the recommended minimum speed at the edge of the cells in an 802.11g network for a good Cisco VoWLAN deployment?

• A.12 Mb/s
• B.54 Mb/s
• C.18 Mb/s
• D.11 Mb/s
• E.36 Mb/s

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

An engineer is designing a wireless infrastructure to support secured wireless access for Cisco 7925 series phones. What 802.1X authentication protocol would create the least overhead for authentication, while also securely transporting credentials?

• A.EAP-MSCHAPv2
• B.EAP-TLS
• C.EAP-FAST
• D.PEAP-EAP-GTC
• E.PEAP-EAP-MSCHAPv2
• F.PEAP-EAP-TLS