A.The session ID is a 32-bit locally significant field used to identify the call on the destination or egresstunnel endport. The session ID will be negotiated by the control connection or statically defined if usingthe L2TP v3 data plane only
B.The cookie is a variable length（with a maximum of eight bytes），word-aligned optional field. The controlconnection can negotiate this as an additional level of guarantee beyond the regular session ID lookupto make sure that a data message has been directed to the correct session or that any recently reusedsession ID will not be misdirected
C.The cookie is a 32-bit locally significant field used to identify the call on the destination or egress tunnelendpoint. The cookie will be negotiated by the control connection or statically defined if using theL2TPv3 data plane only
D.The session ID is a variable length（with a maximum of eight bytes），word-aligned optional field the control connection can negotiate this as an additional level of guarantee beyond the regular cookielookup to make sure that a data message has been directed to the correct session or that any recentlyreused cookie will not be misdirected.
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A.Message Type
B.Calling Number
C.Assigned Session ID
D.Called Number
E.Call Serial Number
A.Extended IS neighbor TLV # 22
B.Extended IS name TLV #137
C.Extended IS resource TLV #138
D.Extended IS reachability TLV #135
E.Router ID TLV # 134
A.A value of 4 represents the "Implicit NULL Label."
B.A value of 0 represents the "IPv4 Explicit NULL Label."
C.A value of 1 represents the "Router Alert Label". The use of this label is analogous to the use of the"Router Alert Option" in IP packets （for example， ping with record route option）
D.A value of 2 represents the "IPv6 Explicit NULL Label"
E.A value of 1 represents the "IPv1 Explicit NULL Label"
F.A value of 3 represents the "Implicit NULL Label"
A.it uses multicast address 224.0.0.10，instead of broadcast
B.it uses multicast address 224.0.0.9，instead of broadcast
C.it can use either multicast or broadcast addresses，instead of just broadcast
D.it sends incremental updates，instead of periodic updates
E.it is classless，instead of classful
F.it supports authentication，and RIPv1 does not
A.IBGP updates exchange between trigger router and black hole router
B.EBGP updates exchange between trigger router and black hole router
C.OSPF updates exchange between trigger router and black hole router
D.ISIS updates exchange between trigger router and black hole router
A.The MD5 algorithm inputs the routing updates of arbitrary length and outputs a 128-bit hash
B.The MD5 algorithm inputs the routing updates of every 64bit length and outputs an 8-bit hash
C.Multiple keys are supported
D.Routing updates packets are delivered in encrypted messages
E.Shared secret keys are delivered in encrypted messages
A.Prevents head-of-line blocking
B.Uses less memory
C.Increases forwarding performance
D.Simplifies configuration
A.Inserted between the MPLS label stack and the Layer 3 payload
B.Inserted between the MPLS label stack and the Layer 3 Header
C.Inserted between the MPLS label stack and the Layer 2 payload
D.Inserted between the MPLS label stack and the Layer 2 header
A.BGP route-reflector should be in forwarding path of data coming from its clients
B.BGP route-reflector does not have to be in the forwarding path of data coming from its clients
C.BGP route-reflector will stop reflecting the routes if they’re not directly-connected clients
D.None of the above
A.Failure detection
B.Failure reporting
C.IGP LSP/LSA originatio
D.Per-hop flooding time of new link state
E.Number of hops that need to be notified of new link state
最新試題
Which tree of these are types of Ethernet Virtue Connections （EVCs） in the MEF concept？（）
Which three are advantages of SONET？（）
What is the BGP synchronization rule？（）
Which three protocols use TLVs to carry attributes？（）
Which two statements about DS-Lite are true？（）
What are three common reasons for ATM CRC errors？（）
Two islands of IPv6 networks that are running ISIS （IPv6 IGP） must be connected using a tunnel over anIPv4 network. Which tunneling method can be used to achieve this goal？（）
There are two cabling schemes to choose from when implementing a Cisco CRS-1 multishelf system：single-module cabling and multimodule cabling. What is the maximum capacity of the LCCs that aresupported in multimodule cabling？（）
What method of streaming live video is the least taxing on bandwidth in a large enterprise environment？（）
Which two statements about 10 Gigabit Ethernet （10GE） are true？（）