多项选择题
What are two considerations to using IP Multicast delivery？ （）
A. no congestion avoidance
B. not for bandwidth intensive applications
C. no guaranteed delivery mechanism
D. source sends multiple data streams out each interface
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YouaretheCiscoNetworkDesignerinCisco.com.Whichsignalandnoisevalueswillresultinthebestphonecommunicationwithanaccesspoint？（）
A. signal strength 5dBm
B. signal strength 6dBm
C. noise level 4dBm
D. noise level 5dBm -
单项选择题
WhichenterprisecachingmodeeliminatestheneedforLayer4switchesorWCCPenabledrouterstointerceptuserrequests？（）
A. transparent
B. proxy
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单项选择题
YouaretheCiscoNetworkDesigner.Whichisnotmajorscaling，sizing，andperformance considerationforanIPsecdesign？（）
A. connection speed
B. number of remote sites
C. features to be supported
D. types of devices at the remote site
