單項選擇題Which configuration should be done in order to improve the performance of the Cisco Unified Wireless IP Phone 7921G in a WLAN infrastructure?()

A.enable aggressive load balancing
B.enable coverage hole detection
C.disable dynamic transmit power control
D.enable short preamble


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1.單項選擇題What is the Cisco recommended setting for the Cisco Unified Wireless Network WLC Voice Call Admission Control Max RF Bandwidth to support the Cisco Unified Wireless IP Phone 7921G?()

A.nominally 30 percent to best align with Cisco Unified Communications System recommendations
B.100 percent to ensure that the VoWLAN calls can use all the available bandwidth, if needed
C.system default of 75 percent
D.40 to 60 percent
E.voice CAC should be left disabled unless wired QoS is configured

2.多項選擇題Which three WLC items are required to properly enable queuing with TSPEC for voice traffic?()

A.configure WLAN setting to enable WMM
B.configure WLAN Aironet information elements enabled
C.configure global 802.11b/g or 802.11a,or both,voice CAC
D.configure WLAN QoS Platinum
E.configure DTIM = 2

3.單項選擇題For which WMM queue is U-APSD most beneficial?()

A.on any of the queues
B.AC_VO
C.AC_VI
D.the strict priority queue

4.多項選擇題Which three are benefits of U-APSD?()

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

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