H12-831_V1.0 Sample Questions Answers

BFDLink state detection at the heart (millisecond) level can be achieved.

In the absence of a header, the Domain ID of each OSPF process running on the router and the process ID of the process

Be consistent and can be modified under the process through the domain-id command

Network administrator A wants to use A, CL to match specific routing entries. Which of the following routing entries will be matched by the A, CL rules in the figure?

acl number 2000

rule 10 permit source 10.0.0.0 0.0.6.0

Which of the following commands can be used to view information about BGP VPNv4 routes and BGP private network routes on PEs

interest

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

Which of the following features affects BGP neighbor establishment?

Can Huawei equipment perform traffic suppression for Mingbi packets?

Part of the configuration of R1 is as follows. Which statement about IS-IS on R1 is correct?

3vpn-instarwce rr

level- 2

cost-style wide

-erntity 47.ccOa 3eft)btxlci-dael

The rollback operation of project cutover can be temporarily determined according to the situation during cutover, and no advance plan is required.

In an operator's MPLSVPN network, there are two devices PE1 and PE2 for MPLSVPN data forwarding. PE1 receives a private network route of 172.16.1.0/24 from the client, and converts it to a VPNv4 route on PE1 and assigns a label of 1027 Released to PE2. The outgoing label of the MPLS LSR-ID of PE2 reaching PE1 is 1025o When a client on PE2 accesses 172.16.1.0/24, the frame sent by PE2, the inner and outer labels should be a combination of the following 6 options?

R1 executes the operation ping -a lO.l.Ll 10.5.16.2, what is the meaning of this command?

LDP messages are exchanged between LSRs running the LDP protocol. LDP messages can be divided into four types according to their functions. Which of the following is not a message type of LDP?

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

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 campus has deployed IPv6 for service testing. There are 4 routers in the network, running 0SPFV3.

Interconnection of IPv6 networks. As shown in the figure, an engineer checked the LSDB of R2 and intercepted one of them

Link-LSAs. Which of the following statements is true about the description of this LSA?

A company consists of a head office and two branch offices, and uses MPLS VPN technology to transmit private network routes. In the networking mode of HuB&Spoke. Branches can only send and receive routes to and from the head office, and branches cannot directly send and receive routes to each other. In order to achieve the above requirements, which of the following schemes can the setting of RT be?

In intra-domain MPLS VPN networks, data packets will be encapsulated with two layers of MPLS when they enter the public network and are forwarded.

Label, a description of the two-layer label in the following options. What is wrong is:

Which of the following are documents that need to be handed over as part of the wrap-up of a structured network troubleshooting process

files?

A, Maintenance suggestions to avoid this fault

B. Troubleshooting Summary Report

C. Troubleshooting Procedure Documentation

D. slightly

Deploying port isolation technology in Ethernet can realize Layer 2 intercommunication and Layer 3 isolation, making networking more flexible.

A,correct

B,mistake 

A campus deploys both IPv4 and IPv6 networks for service testing, and runs IS-IS to realize network interconnection. The IS-IS routing protocol has good scalability and is widely used in the existing network. Which of the following statements is true about IS-IS scalability?

As shown in the figure, SF is enabled on all interfaces of the router, the cost value of the link is marked in the figure, and the Loopback0 interface of R2 is advertised in area 1, then the cost value of R1 reaching 10.0.2.2/32 is?

As shown in the figure, MPLS/BGP IPVPN is deployed on the network. The MP-BGP neighbor relationship is established between PE1 and PE2 through the LoopbackD interface. After the configuration is complete, it is found that CE1 and CE2 cannot learn routes from each other. Run the command to check the error on PE2. The neighbor information is shown in the figure, what is the most likely cause of the problem?

Engineer Guan used two routers to test IPv6 services. By running the BGP4+ module to communicate with the branch, as shown in Juxin, an engineer captured packets to view the Updte packets sent by R1. Which of the following statements is true about the description of the message information?

According to this picture, we can judge that R4 is on?

When 0SPFV2 evolves to 0SPFV3, the LSA format and function are exactly the same, but the network layer in the LSA address from IPv4 to IPv6o

In an MPLS domain, LSR can be divided into Ingress LSR, Transit LSR and Egress LSR according to the different processing methods of LSRs for data. For the same FEC. a certain LSR can be the Ingress LSR of the FEC or the Transit LSR of the FEC. LSRO

As shown in the figure, Sitel and Site2 need to achieve mutual access through the operator's BGP/MPLS IPVPN. A known

The public network tunnel between PE1 and PE2 has been established (the label information is shown in the figure), and PF1 has

The 192.168.1.0/24 network segment route is advertised to PE2 through the MP.JIBGP neighbor relationship, and the route learning is normal. When grabbing between P and PE1, when Site2 accesses the 192.168.1.0/24 data of Sitel, the outermost label

What should the sign be?

FEC In/Out label

1.1.1.1/32 6662/3

Which of the following statements about LDP Label Retention - Free Way is true:

To prevent hackers from attacking user devices or networks through MA, C addresses, you can configure the MA, C addresses of untrusted users as black hole MA, C addresses to filter out illegal MA, C addresses.

If you want to check the files under Flash, which command should you use?

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?

The IS-IS neighbor relationship between R3 and R1 is not established. According to the information in this figure, what is the possible reason?

Regarding MP-BGP, which of the following descriptions is wrong?

From this picture, we can judge

Public Routing Table . ISIS

Summary Count 6

ISIS Routing Table's Status : < Active >

Summary Count 6

In the same environment, engineers A and B execute the tracert command. The destination addresses are the same, but the paths are different. What are the possible reasons?

In intra-domain MPLS VPN networks, data packets will be encapsulated with two layers of MPLS when they enter the public network and are forwarded.

label, the description of the two-layer label in the following options is wrong