A.PPP over Ethernet
B.Cisco Express forwarding
C.MPLS traffic Engineering
D.IS-IS routing
E.Unicast Reverse Path Forwarding（uRPF）
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A.Version
B.Label
C.COS/EXP
D.TTL
E.S flag
A.It adds the VPN label into the top label in the MPLS label stack
B.It replaces the top label in the MPLS label stack with a VPN label and propagates
C.It replaces the bottom label in the MPLS label stack with a VPN label and propagates
D.It removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packets
E.None of above
A.Packet-based switching devices
B.VPI/VCI-based switching devices
C.Non-Packet-based devices
D.None of the above
E.A and B
A.TE middle point
B.TE tail end
C.TE head end
D.All TE nodes along the path
E.Independent server
A.0ms
B.10ms
C.500ms
D.1s
E.5s
F.30s
最新試題
Which Modular QoS CLI （MQC） based output queuing method is designed to support multiple trafficclasses including VoIP traffic， mission-critical traffic， interactive traffic， and default class traffic？（）
Which two statements about 10 Gigabit Ethernet （10GE） are true？（）
Which three are advantages of SONET？（）
Which four statements about Ethernet virtual circuit （EVC） infrastructure are true？ （）
What is the BGP synchronization rule？（）
Which tree of these are types of Ethernet Virtue Connections （EVCs） in the MEF concept？（）
When an MPLS Layer 2 VPN runs in the hub-and-spoke model， where is QoS implemented？（）
Which option is not a valid method to assign the lowest-order 64-bit field of an IPv6 unicast address？（）
Assume that the PEs are separated by Multiple P routers.How many labels should the ingress PE push for BPE functionality？（）
Which configuration prevents traffic that is sourced from the unique local address scope to be sent out ofthe link to the upstream service provider？（）