Huawei Huawei Certifications H12-891 Questions & Answers

• Question 341:

  The following statement about is the ISIS protocol LSP message is correct

  A. LSP fast diffusion feature, first diffuse less than the specified number of LSPs, to speed up the synchronization process of LSDB

  B. By configuring an LSP-generated smart timer, the timer automatically adjusts the delay time based on the frequency of changes in routing information

  C. When the link status information increases, the message length of the LSP can be increased so that each LSP can carry more information.

  D. Reducing the minimum time interval for sending LSPs per port can speed up the diffusion of LSPs.

  Correct Answer: ABCD

• Question 342:

  Regarding the BGP/MPLS IP VPN network architecture, what is the error described below?

  A. sites can be accessed each other through vPNs, and a site can only belong to a VPN

  B. P devices only need basic MPLS forwarding capabilities and do not maintain VPN- related information

  C. BGP/MPLSIPVPN network architecture consists of CE (Customer Edge), PE (Provider Edge) and P (Provider), of which PE and P Is a carrier device, CE is BGP/MPLSIPVPN with Household equipment

  D. Under normal circumstances, CE devices are not aware of the presence of VPN, and CE devices do not need to support MPLS MP-BGP, etc

  Correct Answer: A

• Question 343:

  What are the characteristics of Syslog information?

  A. The transmission of Syslog messages is not secure

  B. The transmission of Sysiog messages is reliable

  C. The transmission of Syslog messages is confirmable

  D. The transmission of Syslog messages is secure

  E. The transmission of Syslog messages is not acknowledgable

  F. The transmission of Syslog messages is unreliable

  Correct Answer: AEF

• Question 344:

  In OSPFv3, Router-LSA is generated by each router, which describes the interface address and cost of the router's links, as well as the RouteriD of the neighbor router.

  A. True

  B. False

  Correct Answer: B

• Question 345:

  In addition to stateless address autoconfiguration, IPV6 devices can also obtain addresses, gateways, DNS, and other information through DHCPv6

  A. True

  B. False

  Correct Answer: B

• Question 346:

  Regarding the cross-domain VPN-OptionB scenario, what is the following description incorrect?

  A. In the process of packet forwarding, the private network LSP of the VPN should be exchanged once on the two ASBRs An EBGP neighbor relationship.

  B. Cross-domain VPN An Option

  C. scheme is not limited by the number of interconnection links between ASBRs

  D. The outer layer label is exchanged between two ASBRs to VPNv4 routes.

  Correct Answer: D

• Question 347:

  What is the correct description of the scene shown in the following figure?

  A. R1 simultaneously exists level-1 and Level-2 LSDB

  B. R1 can ping the interface address of R2 loopback 0

  C. R1 has a route to R2 loopback 010022/32

  D. There is no neighbor relationship between R1 and R2

  Correct Answer: AC

• Question 348:

  An advanced access control list is a sequence of rules consisting of permit |deny statements that can match IP messages based on which attributes ?(). Multiple select).

  A. Destination port number

  B. Source address

  C. Destination address

  D. Source port number

  Correct Answer: ABCD

• Question 349:

  In a network, the same gigabit running S and OSPF anti-tampering and fluttering as shown in the figure, on the two border routers RTB and RTC are introduced into the wine route, the device question is to use gigabit one port strobe, , 222 The network is introduced into the OSE via impotrote direct on the RTD, assuming that all other configurations are dead default configurations, then the description of this network is wrong ?

  

  A. Adjusting the ISIS priority to 160 on the RTB avoids suboptimal routing problems in the network.

  B. On the RTC, the following configuration is adopted, only the routes of the 2222/32 cinder segment can be filtered out when routing is introduced, IRTClip ip-prefix 10 index 1 deny2 000 8 less-equal 32

  C. RTB learns that the routing next hop for the 2222/32 network segment is RTA

  D. The following configuration can filter out the routes of the 2222/32 CIDR block of the white RTD when RTC introduces OSPF routes.

  Correct Answer: B

• Question 350:

  IPSGs can statically configure binding tables or form binding tables by using them with DHCP-Snooping

  A. True

  B. False

  Correct Answer: A