A.True

B.False

A.site is a groupIPsystem, a network of hosts cannot be called a site

B.in any case, belong to the sameVPNDifferent sites on the

C.through the sameCETerminals connected to the operator's network may belong to different sites(MCE)

D.The two geographically separated networks must belong to different sites

A.The processing method of copying the IP TTL value hides the LSR of the MPLS domain and plays a certain security role

B.When the TTL of the shell is disabled, tracert can see the LSR of the MPLS domain that it passes through

C.Can prevent infinite loop forwarding of messages

D.There are two ways to deal with MPLST correctly and TTL. One is to copy the TTL value of the MPLS header when an IP packet enters the MPLS network. The other is to set the TTL of the MPLS header to 255 at the ingress LER.

A.If not configured aboutAS_Pathrouting strategy, then3002:-4/128 -must not originate from AS 65001

B.If not configured aboutAS_Pashrouting strategy, then3002:4/28must have originated from AS 65001

C.R1have3002.-3/128and3002:.4/128routing

D.R1does not have3002:3/128and3002.-4/128routing

A.LSPstaticLSPand dynamicLSPtwo kinds. staticLSPManual configuration by administrator, dynamicLSPthen use Dynamic establishment of label protocol

B.The principle to be followed when manually assigning labels is: the value of the outgoing label of the upstream node is the value of the incoming label of the downstream node

C.dynamicLSPDynamically established through the label publishing protocol, such asMP-BGP, RSVP-TE, LDP

D.Created by assigning labels staticallyLSPIt can also be dynamically adjusted according to changes in network topology, without administrator intervention.
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