Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - H12-831_V1.0 模擬練習
In the IS-IS network shown in the figure, R1 introduces the default route through the "default- route-advertise always level-1" command. Which of the following descriptions is wrong?
正解: C
When IP packets pass through the MPLS network, the MPLS device will process the TTL. If the topology shown in the figure adopts the Pipe processing mode, which of the following are the TIL values in the IP packets?
正解: B
A large Internet service provider needs to shut down the equipment in the computer room for maintenance in batches. As a cutover project manager, which of the following time points would you prefer?
正解: A
The LSP fast diffusion feature can speed up the diffusion of LSP. Under normal circumstances, when IS-IS receives an LSP from another router, if this LSP is newer than the corresponding LSP in the local LSDB, it updates the LSP in the LSDB and uses a timer to periodically diffuse the updated LSP in the LSDB. When a device with the LSP fast diffusion feature enabled receives one or more newer LSPs, it diffuses LSPs less than the specified number before route calculation to speed up the synchronization process of the LSDB.
正解: A
OSPF neighbors periodically send Hello messages to establish and maintain adjacency, and the interval of the Hello timer must be consistent, otherwise the adjacency cannot be established. In order to accelerate OSPF convergence, network engineers can set the interval of the Hello message to 1ms.
正解: B
The linkage between OSPF and BFD is to associate BFD and OSPF protocols to speed up the response of OSPF protocol to network topology changes. After BFD status 3 is UP, the OSPF neighbor status can reach the Full status. After the BFD status changes to Down, the OSPF neighbor status can change to Down.
正解: B
The business route of an enterprise is transmitted in the network, and part of the configuration of PE1 and PE2 is shown in the figure. At this time, CE1 adds a new business network segment and announces it to Area1 of OSPF 10.
In this scenario, which type of LSA will CE2 receive, which will contain the service network segment newly announced by CE1?
In this scenario, which type of LSA will CE2 receive, which will contain the service network segment newly announced by CE1?
正解: B
The file information shown in the figure exists on the R2 device. When the network engineer uses the "dir | exclude 1" command to view the file information, which of the following files will be seen?
正解: D
In the OSPFv3 network shown in the figure, the interfaces of R1 and R2 both have two IPv6 addresses. Although the prefix lengths of the IPv6 addresses of R1 and R2 are different, they can still establish an OSPFv3 neighbor relationship. If R2 is the DR, then the Intra-Area-Prefix-LSA generated by R2 will contain four prefixes.
正解: A
Which of the following descriptions about OSPFv3 are correct? (Multiple choice)
正解: A,B,C,D