In an MPLS domain, LSR can be divided into Ingress LSR, Transit LSR and Egress LSR according to the way the LSR processes data. For the same FEC, a certain LSR can be the Ingress LSR of the FEC or the Transit LSR of the FEC.

• A.FALSE
• B.TRUE

Comment: *

Name: *

Email: *

Verification: *

What is the value of the linkage between OSPF and BFD?

• A.Detected at the millisecond levelBFD. associationOSPFstate, fulfilledOSPFThe purpose of quickly sensing the status of the tank
• B.BFDThe message sending interval can reach the millisecond level, which is less thanOSPFInduction link status is slow
• C.OSPFofhelloThe sending interval is in seconds, more thanBFDInduction link status is fast
• D.BFDAny change in state will not affectOSPFneighbor state

Comment: *

Name: *

Email: *

Verification: *

The following description of TL in PLSHeader is correct:

• A.Similar to the TTL in the IP header, it is used to prevent packet loops
• B.Control of upstream equipment for label distribution
• C.To control label distribution
• D.Limit the LSR

Comment: *

Name: *

Email: *

Verification: *

What is the meaning of ipv6 enable topology ipv6 in IS-IS protocol view?

• A.not supportIPv6ofSPFcalculate
• B.has no meaning
• C.SPFCalculated atIPv4,IPv6in the topology of the
• D.IPv4,IPv6use the same topologySPFcalculate

Comment: *

Name: *

Email: *

Verification: *

As shown in the figure, OSPF is enabled on all the routers. The IP address marked in the figure is the IP address of the loopbackO interface of the device. The LoopbackO of R1 and R2 is advertised in area 1, the LoopbackO of R4 is advertised in area 0, and the LoopbackO of R3 and R5E is advertised in area 0. In area 2, which of the following IP addresses can ping each other?

• A.10.0.4.4and10.022 (normal calculation3kind)
• B.10.0.2.2and10.0.3.3 (Non-backbone area received3class received does not count)
• C.10.022and10.0.5.5 (Non-backbone area received3class received does not count)
• D.10.0.3.3and10.0.5.5 (same area1kind)

Comment: *

Name: *

Email: *

Verification: *