单项选择题
The mechanisms for distributing LDP are：（）
A.LDP and RSVP
B.RSVP and CEF
C.CEF and the FIB table
D.UDP and IP
E.A and B
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相关考题
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单项选择题
TheshowipospfdatabaseexternalcommanddisplaysinformationaboutwhichOSPFLSAtype？（）
A.LSA type 1
B.LSA type 2
C.LSA type 7
D.LSA type 3
E.LSA type 9
F.LSA type 5 -
单项选择题
WhatistheencapsulationmodeforMPLSrunningonEthernet？（）
A.Packet mode
B.Frame mode
C.Transparent mode
D.Channel mode
E.Tunnel mode -
单项选择题
Whatistheactionof"pop"inthecontextofMPLSswitching？（）
A.It removes the top label in the MPLS label stack.
B.It adds a top label in MPLS label stack.
C.It replaces the top label in the MPLS label stack with another value.
D.It replaces the top label in the MPLS label stack with a set of labels.
E.None of above.
