H12-821_V1.0-ENU exam

​​Regarding the description of LSA header information in OSPF AS -External C LSA, which is wrong?A . Link State ID indicates the destination network address B. Forwarding Address is always 0.0.0.0 C. Advertising Router indicates the Router ID of ASBR D. Net mask indicates the network mask of the destination network segmentView AnswerAnswer: B

 As shown in the figure, the four routers in the same LAN run IS-IS, and R1 is DIS. Then R2, R3  R4 respectively establish adjacency relationship with R1, and R2, R3, R4 do not establish adjacency relationship. A . True B. FalseView AnswerAnswer: B

 Regarding the description of IGMP Snooping-working mechanism, which is the correct?A . The layer 2 switch establishes and maintains the PIM routing table on the layer 2 by continuously monitoring IGMP messages. B. When IGMP Snooping is not running, the multicast message will be broadcast on the second layer. After running IGMP Snooping, the message will no longer be...

 Which of the following does not belong to IGP?A . RIP B. IS-IS C. BGP D. OSPFView AnswerAnswer: C

 Regarding the ABR in OSPF, which is the wrong description?A . ABR cannot generate Type 3, Type 4, and Type 5 LSAs B. Convert the Type 1 and Type 2 LSAs in the connected non-bone thousand areas into Type 3 LSAs and publish them to the backbone area C. The Type 1, Type 2, and Type 3 LSAs in the...

 As shown in the figure, in the network running the RSTP protocol, the original root port of SWC fails and the port is in the Down state. At this time, which of the following processes will the network go through to achieve stability? A .  The standby port on the SWC becomes the new root port...

Which BGP route will send BGP neighbors without BGP path load sharing enabled?A . All BGP routes learned from all neighbors B. Only the best route preferred by BGP C. Only routes learned from IBGP D. Only routes learned from EBGPView AnswerAnswer: B

 Will setting the Community attribute of the route through the routing policy affect the route selection?A .  It can be indirectly affected. By setting the Community attribute of the route, the route can be classified, and then set different route selection-related attributes according to the category, such as Local_Pre, MED, etc., to achieve the purpose of affecting...

 The four routers run IS-S and have established adjacency. The area numbers and router levels are marked in the figure. Which of the following statements is correct? A . Both R2 and R3 will generate Level-1 LSPs with ATT set. B. R1 does not have the LSP generated by R4, so R1 can only communicate with R4 through the default route. C. Both R2 and R3 will generate LSPs of Level 1-2 with ATT set. D....

The default priority of the VRRP device in the backup group is:A . 0 B. 200 C. 150 D. 100View AnswerAnswer: D