H12-831 Online Practice Questions and Answers

Regarding multi-instance CE (Mlulti-VPN-Instance CE, MCE), which of the following descriptions is wrong?

A. existMCEdevice needs to be differentVPNCreate their own routing table and bind to the correct interface

B. connected to the sameMCEbut not oneVPNInstance users cannot access each other

C. haveMCEfunctional devices can be found inBGPIMPLS IP VPNAccess to multiple applicationsVPNExample, reduce the investment of user network equipment

D. MCEandPEThere must be multiple physical links betweenVPINIsolation between instances

As shown in the figure, the network has a loop because STP is not enabled. Which of the following phenomena may be bowed?

A. Hostreceive a large number of broadcasts

B. The device will generate a loop alarm

C. equipmentCPUOccupancy is too high

D. MA, CAddress table flapping

What is the Router-ID of OSPFv3?

A. 100bit value

B. 128bit value

C. 32bit value

D. 64bit value

About the difference between NSR and NSF, which is correct?

A. NSFCan be done without neighbor routers

B. NSRMust rely on neighbor routers to complete

C. NSFMust rely on neighbor routers to complete

D. NSRandNSFBy6Requires neighbor router to complete

The IS-IS Level-1 neighbor relationship between R3 and R4 is not established. According to the information in this figure. What is the possible reason?

A. R3andR4the interconnect interfacecircuit-typeMismatch

B. R3andR4different area codes

C. R3andR4ofIS-LevelMismatch

D. R3andR1ofIIHAuthentication failed

As shown in the figure, all routers run OSPF, because R3 is in the backbone area, so in the LSDB of R3 There are no three types of LSAO

A. True

B. False

From this figure, we can conclude that

A. R4not anyIS-ISNeighbor

B. R4andee8c.aOc2.baf3establishedIPv4,IPv6ofIS-ISNeighbor

C. R4andee8C. aOe2.baf3only establishedIPv6ofIS-ISNeighbor

D. R4andee8c.aOc2.bat3only establishedIPv4ofIS-ISNeighbor

Part of the configuration of R1 is as follows. Which statement about OSPF on R1 is correct? ospf 1 router-id 172.16.1.1 area 0.000 network 10.1.12.1 0.0.0.0 network 10.1"3"0.0.0.0 network 172.16/1 1 0.0.0.0 ospf 2 vpn-instance tt area QQO.O network 10J J 1 0.000

A. VRF ttThe routing information will appear inOSPFprocess1in the routing table

B. process1and process2ofOSPF LSD8within its areaLSAinconsistent

C. process1and process2ofOSPF-LSDBits area0InsideLSAexactly the same

D. VRFttThe routing information will not be available nowOSPFprocess1in the routing table

Which of the following community attributes can ensure that the propagation scope of BGP routing entries is only within the AS?

A. No_Export

B. No_Export_Subconfed

C. Internet

D. No_Advertise

In the DU label distribution mode, if the Liberal retention mode is adopted, the device will retain the labels distributed by all LDP peers, regardless of whether the LDP peer is the optimal next hop to the destination network segment.

A. True

B. False