单项选择题

What is the port number of an IPsec Encapsulating Security Payload packet？（）

A.IP protocol 50
B.IP protocol 51
C.TCP port 50
D.TCP port 51
E.UDP port 50
F.UDP port 51

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热门试题

多项选择题

InPPPoAarchitecture，whichtwomethodsaremostcommonlydeployed？（）

A.terminating PPP sessions at the service provider
B.PPP framing
C.PPP multiplexing
D.GRE tunneling
E.L2TP tunneling

单项选择题

WhattypeofIPv6addressisthisaddress：FF05：：2：260：8FF：FE52：F9D8？（）

A.multicast temporary node local
B.multicast temporary site local
C.unicast permanent link local
D.multicast permanent node link local
E.multicast permanent site local
F.unicast temporary link local