单项选择题
Using more than one label on a single packet is required in what context？（）
A.MPLS TE
B.MPLS VPN
C.When CEF switching and Label switching is done
D.In all the above circumstances
相关考题
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单项选择题
Whichofthefollowingprocessesarelikelytobefoundinamicrokernel？（）
A.Lightweight messaging
B.Memory management
C.Hardware abstraction
D.Host stack
E.Process scheduling
F.All of the above -
多项选择题
WhatareBCP38（BestCommonPractices38）/RFC2827IngressPacketFilteringPrinciples？（）
A.Filter Smurf ICMP packets.
B.Filter as close to the core as possible
C.Filter as close to the edge as possible
D.Filter as precisely as possible
E.Filter both source and destination where possible -
单项选择题
Iftworouters，bothreachablefromoneanother，originatefunctionallyequivalenttype2external-LSAs（i.e，samedestination，costandnon-zeroforwardingaddress），Whichofthefollowingstatementswouldapply？（）
A.Two LSAs will exist in the network for this destination， and both will be used
B.Two LSAs will exist in the network for this destination， but only the one generated by the highest RID ASBR will be used
C.Only the LSA generated by the highest RID ASBR will exist in the network
D.Only the LSA generated by the lowest RID ASBR will exist in the network
