多项选择题
A.Multicasting B.Global addressing C.Forward-explicit congestion notification （FECN） D.Virtual circuit status messages. E.Backward-explicit congestion notification （BECN）
WhenprovisioningforInteractive-Video（e，g，videoconferenc...
多项选择题When provisioning for Interactive-Video（e，g，video conferencing traffic）which three statementsdepicts the correct requirements？（）
A.Loss should be no more than 1 percent. B.One-way latency should be no more than 150 ms C.Jitter should be no more than 30 ms D.Loss should be no more than 3 percent E.One-way latency should be no more than 150/2=75 ms F.Jitter should be no more than 300 ms
WhatisthetypicalmarkedDSCPvalueforavoicemediapacketinVo...
单项选择题What is the typical marked DSCP value for a voice media packet in Voice over IP technology？（）
A.AF41 B.AF31 C.AF21 D.BE E.EF
WhichstatementabouttheLinkControlProtocol（LCP）istrue？（）...
单项选择题Which statement about the Link Control Protocol （LCP） is true？（）
A.LCP is used for basic PPP link setup and operation. B.LCP is used for PPP CHAP authentication. C.LCP is used for PPP over ATM （PPPoA） setup. D.LCP is used for PPP over Ethernet （PPPoE） setup. E.LCP is used for PPP over Frame Relay （PPPoFR） setup
