單項選擇題How do Cisco Unified Communications IP phones receive firmware upgrades?()

A.user request using the keypad of the phone and HTTP download
B.IT department scheduled upgrade using HTTP download
C.TFTP download based on version control through Cisco Unified Communications Manager
D.FTP download based on version control through Cisco Unified Communications Manager
E.HTTP download based on version control through Cisco Unified Communications Manager


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1.單項選擇題Which deployed VoWLAN client security option is recommended by Cisco?()

A.Layer 3 with Layer 3 Security set to None and Web Policy set to Authentication
B.Layer 3 with Layer 3 Security set to None and Web Policy set to VPN Pass-Through
C.Layer 3 with Layer 3 Security set to VPN Pass-Through
D.Layer 2 with Layer 2 Security set to 802.1X

2.單項選擇題An LWAPP encapsulated packet is being sent from the Cisco WLC v5.2 to the AP for a wireless WMM client. Can the LWAPP frame be altered to change the resulting final WMM queue for transmission on an 802.11 client?()

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.

3.單項選擇題Which statement is NOT a key QoS recommended requirement for voice bearer traffic?()

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.

4.多項選擇題For which two of these purposes are Cisco Spectrum Expert used?()

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

5.單項選擇題What standard is WMM based on?()

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

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