单项选择题
Refer to the exhibit. What is the effect on the trust boundary of configuring the command mls qos trust cos on the switch port that is connected to the IP phone？（）
A.Effectively the trust boundary has been moved to the IP phone
B.The host is now establishing the CoS value and has effectively become the trust boundary
C.The switch is rewriting packets it receives from the IP phone and determining the CoS value
D.The switch will no longer tag incoming voice packets and will trust the distribution layer switch to set the CoS
E.RTP will be used to negotiate a CoS value based upon bandwidth utilization on the link
相关考题
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单项选择题
Refer to the exhibit. Which statement is true about a voice VLAN？（）
A.Physically the voice network and the data network are separate
B.The voice traffic will normally be on a different IP subnet than will the data traffic
C.End user intervention is necessary to place the phone into the proper VLAN
D.The same security policy should be implemented for both voice and data traffic
E.The data VLAN must be configured as the native VLAN -
单项选择题
WhatisthedifferencebetweentheIPv6addresses：：/0and：：/128？（）
A.：：/0 is the unspecified address， and ：：/128 is the multicast address
B.：：/0 is the unicast address， and ：：/128 is the anycast address
C.：：/0 is the unicast address， and ：：/128 is the multicast address
D.：：/0 is the anycast address， and ：：/128 is the multicast address
E.：：/0 is the default route， and ：：/128 is the unspecified address
F.：：/0 is the anycast address， and ：：/128 is the default address -
多项选择题
WhataretworulesforcompactingIPv6addresses？（）
A.The maximum number of times a double colon can replace a 16-bit segment that consists of all zeroes is two
B.The leading zeroes in any 16-bit segment do not have to be written.
C.Every 16-bit segment that consists of all zeroes can be represented with a single colon
D.The trailing zeroes in any 16-bit segment do not have to be written.
E.Any single， continuous string of one or more 16-bit segments that consists of all zeroes can be represented with a double colon
F.Two zeroes in the middle of any 16-bit segment do not have to be written
