单项选择题
Jitter is causing problems with the VOIP application in the network. What causes network jitter？（）
A.Variable queue delays
B.Packet drops
C.Transmitting too many small packets
D.Compression
相关考题
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多项选择题
VOIPisbeingimplementedinthenetworkandyouneedtoassesstheneedforQoS.WhichofthefollowingnetworkproblemswouldindicateaneedtoimplementQoSfeatures？（）
A.Mis-routed packets
B.Excess jitter
C.Delay of critical traffic
D.Packet loss due to congestion
E.Data link layer broadcast storms
F.FTP connections unsuccessful -
单项选择题
Refer to the exhibit. What is the effect when the switchport priority extend cos 3 command isconfigured on the switch port interface connected to the IP phone？（）
A.Effectively， the trust boundary has been moved to the PC attached to the IP phone
B.The computer is now establishing theCoS value and has effectively become the trust boundary
C.The IP phone is enabled to override with aCoS value of 3 the existing CoS marking of the PCattached to the IP phone
D.The switch will no longer tag incoming voice packets and will extend the trust boundary to thedistribution layer switch
E.RTP will be used to negotiate aCoS value based upon bandwidth utilization on the link -
单项选择题
Based on the graphic below， which Catalyst switch interface command should be issued in orderfor the switch to instruct the phone to override the incoming CoS from the CK-PC before sendingthe packet to the switch？（）
A.switchport priority extend cos 11
B.switchport priority extend cos 2
C.mis qos cos 2
D.mis qos cos 2 override
