Which deployed VoWLAN client security option is recommended by Cisco?（）

单项选择题AnLWAPPencapsulatedpacketisbeingsentfromtheCiscoWLCv5.2totheAPforawirelessWMM client.CantheLWAPPframebealteredtochangetheresultingfinalWMMqueuefortransmissiononan 802.11client?（）

A.Yes，by modifying the LWAPP frame header DSCP value in transit.
B.Yes，by modifying the LWAPP frame header 802.1p value in transit.
C.No，the WMM queue classification parameter is transported inside the LWAPP tunnel.
D.No，the WMM queue classification parameter is determined at the AP based on the original client IP  header DSCP value.

单项选择题WhichstatementisNOTakeyQoSrecommendedrequirementforvoicebearertraffic?（）

A.Voice traffic should be marked to DSCP EF per the QoS baseline and RFC3246.
B.Voice traffic loss should be no more than 3%.
C.One-way latency （mouth-to-ear） should be less than 150 msec.
D.Average one way jitter should be targeted to less than 30 msec.
E.21-320 Kbps of guaranteed priority bandwidth is required per call depending on sample rate，codec，and  layer 2 overhead.

多项选择题ForwhichtwoofthesepurposesareCiscoSpectrumExpertused?（）

A.audit VoWLAN cell edge coverage
B.verify RFID tag coverage by four access points at -75 dBm
C.audit microwave oven interference
D.audit 802.11a channel 36 utilization
E.create test scripts for 802.11n bonded channel throughput tests

单项选择题WhatstandardisWMMbasedon?（）

A.802.11e
B.802.11k
C.802.11i
D.802.11h

单项选择题WhichexplanationdescribesawirelessclientIGMPmulticastjoinrequestusingaCiscoUnified WirelessNetworkv5.2architectureofAPtoWLANcontroller?（）

A.passed by the AP to its connected switch and then forwarded directly to the connected router，which  creates an MGID table entry
B.passed by the AP to the WLAN controller and then forwarded to the source PIM-enabled router，which  creates an MGID table entry
C.passed by the AP to the WLAN controller， which creates an MGID table entry before forwarding to the  directly connected PIM-enabled router
D.passed by the AP to its connected switch and then forwarded to the rendezvous point router，which  creates an MGID table entry