单项选择题
What is the port number of an IPsec Encapsulating Security Payfoad packet？（）
A.UOP port 50
B.IP protocol 51
C.TCP port 51
D.TCP port 50
E.IP protocol 50
F.UDP port51
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相关考题
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单项选择题
WhatistheencapsulationformatofanMPLSMulticastVPN（MVPN）packer？（）
A.IP unicast in IP unicast
B.IP multicast in IP anycast
C.IP anycast in IP anycast
D.IP multicast in IP unicast
E.IP multicast in IP multicast
F.IP unicast in IP multicast -
多项选择题
ForSONETringswitching，the50msswitchtime：Selectallthatapply？（）
A.Plncludes the detection time
B.Applies to rings smaller than 1200km
C.Applies to rings smaller than 1000km
D.Includes up to 16 nodes -
单项选择题
InMPLStrafficengineering，whichoneofthefollowingprotocolsisusedforPathSetup？（）
A.BGP
B.OSPF
C.ISIS
D.RSVP
