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

R2interfaceGEO/O/OThe link-local address force:FE80::2E0;FCFF:FEC, D:4F79

R2interfaceGE0/0/0IPV6address prefix:2001:2343:23: :/64

R2interfaceGEO/O/OThe link-local address force:FE80::2E0;FCFF:FEC, D:4F79

ShouldLSAshowR2External routing is not supported, but participatingIPv6route calculation

R2interfaceGE0/0/0IPV6address prefix:2001:2343:23: :/64

Configuring DHCP Snooping can be used to prevent imitator attacks, so the configuration process needs to include the followingWhat are the steps?

enable globalDHCP SnoopingFunction

Configure Interface Trust Status

enable interface orVLANofDHCP SnoopingFunction

enable globalDHCP SnoopingFunction

Configure Interface Trust Status

enable interface orVLANofDHCP SnoopingFunction

From this picture, we can judge

R1ofGE0/0/1definitely haveLevel-2ability

R1ofGE0/0/0definitely haveLevel-2ability

R1definitely existsLevel-2ofLSDB

R1ofGE0/0/1definitely haveLevel-2ability

R1ofGE0/0/0definitely haveLevel-2ability

R1definitely existsLevel-2ofLSDB

A router runs OSPF, and the output information is shown in the figure. Which of the following statements is correct?

ShouldLSAThe described destination network is10.0.23.0/24

ShouldLSAis of typeAS-external-LSA

ShouldLSAThe described destination network is10.0.23.0/24

in the pictureLSAis generated by this router

OSPFV2 is an IGP running on an IPv4 network; OSPFV3 is an IGPo running on an IPv6 network. The basic working mechanism of OSPFv3 is the same as that of OSPFV2, such as the election of DR and B, DR. As shown in the figure, an engineer uses 3 routers to test IPv6 services. He wants to realize the interconnection of IPv6 networks by running OSPFV3.Pass. Which of the following statements about the election of the network DR is correct?

After the network convergesR1Power off and restart, when the network converges again,R3forDR

After the network converges, engineers modifyR1the priority is100,R2the priority is10,R3Keep the default value. When the network converges again,R1forDR, R2forB, DR

After the network converges, a new device is added to the broadcast linkR4,R4the priority is150. When the network converges again,R4forDR

After the network convergesR1Power off and restart, when the network converges again,R3forDR

After the network converges,R1forDR

Which of the following are advantages of VLAN aggregation?

accomplishSub-VLANIsolation between broadcast domains

Increased addressing flexibility

accomplishSub-VLANIsolation between broadcast domains

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?

outer layer label:1025:inner label:1027

outer layer label:1027:inner label:1027

Layer Label:1027:inner label:1025

Layer Label,1025:inner label:1025

Regarding the sham link, which of the following descriptions is wrong?

sham linkThe endpoint address of theBGPasVPhv4address published. passedsamlikThe route can also be reconfigured withVPNv4The form of routing is introduced toBGP

sham linkThe coat is twoVPNlinks between instances, eachVPNThere must be one in the instancesham linkthe endpoint address, it must bePEon the routerVPNone in the address space has32bitmaskedLoopbackinterface address

becauseVPNflow is throughMPLSBackbone forwarding,sham linkThe routing cost should be less thanbackdoorroadOSPFrouting cost

sham linkThe endpoint address of theBGPasVPhv4address published. passedsamlikThe route can also be reconfigured withVPNv4The form of routing is introduced toBGP

Sham linkIt can be configured in any area and needs to be manually configured and the local endVPNThe instance must have tosham linkdestination address (peerPEofsham linkendpoint address) routing

Part of the configuration of R1 is as follows. Which statement about IS-IS on R1 is correct? 3vpn-instarwce rrlevel- 2cost-style wide-erntity 47.ccOa 3eft)btxlci-dael

process2with process3The routing information is isolated

process1Contains only global routing information

process2with process3The routing information is isolated

process1Contains only global routing information

process1Also contains global routing information. andVRFtt,rrrouting information

process2with process3routing information will be shared

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?

Maintenance suggestions to avoid this fault

Troubleshooting Procedure Documentation

Maintenance suggestions to avoid this fault

Troubleshooting Procedure Documentation

ping -a Xc Ys z -vpn-instance M 10.5.16.2, the meaning of this command is:

ShouldpingofICMPThe request packet size isZ(excludingIPandICMPhead)

Shouldpingpackage sourceIFPaddress isX

Shouldpingpackage belongs toVPNexampleM

ShouldpingofICMPThe request packet size isZ(excludingIPandICMPhead)

Shouldpingpackage sourceIFPaddress isX

Shouldpingpackage belongs toVPNexampleM

From this figure, it can be known that

R1access172.17.1.5There is a loop

R1access172.17.1.5There is no problem with the path

There is the concept of forwarding equivalence class FEC in MPLS. The following description is wrong:

a forwarding equivalence classFECA unique label value is assigned on all routers

sameFECgrouped inMPLSThere will be different processing in the network

MPLSGrouping packets with the same forwarding processing method is calledFEC

a forwarding equivalence classFECA unique label value is assigned on all routers

sameFECgrouped inMPLSThere will be different processing in the network

FECThe division is very flexible. Can be the source address, and the address, source port, destination port, protocol type or VPNEqual to any combination of division basis

As shown in the figure, the MP_BGP neighbor relationship is established between PE1 and PE2 through the LoopbackO interface. After the configuration is complete, it is found that CE1 and CE2 cannot learn routes from each other. Which of the following options will cause this problem.

PEIorPE2not presentBGP-VPNv 4Enabling neighbors in unicast address family view

PE1orPE2ofVPNInstance parameter configuration error

PE1andPE2betweenLSPTunnel not established

PF1orPE2with each otherCEMisconfigured routing protocol between

PEIorPE2not presentBGP-VPNv 4Enabling neighbors in unicast address family view

PE1orPE2ofVPNInstance parameter configuration error

PE1andPE2betweenLSPTunnel not established

PF1orPE2with each otherCEMisconfigured routing protocol between

On the network shown in the figure, IS-IS runs on Rl, R2, R4, and R5, and the area ID is 49.0001. IS-IS runs on R3 and R6, and the area ID is 49.0002. In AS 65000, Ri, R3, R4, and R6 each establish IBGP peer relationships with R2 and R5. R2 and R5 are RRs, and Rl, R4, R3, and R6 are clients. The IBGP peer relationships are established using LoopbackO. The IP address of LoopbackO on each router is 10.0.X.X/32, and the router ID is 10.0.X.X, where X is the number of the router. Rl and R4 import the external route 192.168.1.0/24 to BGP through the import-route command, and R3 and R6 import the external route 192.168.2.0/24 to BGP through the import-route command. Which of the following statements are true?

For 192.168.2.0/24, R2 preferentially selects the BGP route received from R3.

For 192.168.1.0/24, R3 preferentially selects the BGP route received from R2.

For 192.168.2.0/24, R5 preferentially selects the BGP route received from R3.

For 192.168.1.0/24, R6 preferentially selects the BGP route received from R2.

For 192.168.2.0/24, R2 preferentially selects the BGP route received from R3.

For 192.168.1.0/24, R3 preferentially selects the BGP route received from R2.

For 192.168.2.0/24, R5 preferentially selects the BGP route received from R3.

For 192.168.1.0/24, R6 preferentially selects the BGP route received from R2.

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

Hostreceive a large number of broadcasts

The device will generate a loop alarm

equipmentCPUOccupancy is too high

Hostreceive a large number of broadcasts

The device will generate a loop alarm

equipmentCPUOccupancy is too high

In an MPLS VPN network, data packets are forwarded when they enter the public network. will be encapsulated with two layers of MPLS labels sign. Which of the following options describes the processing of the packet correctly:

The data packet is forwarded toEgress PEequipment

Egress PEThe device correctly sends the data packet to the correspondingVPNmiddle

The data packet is forwarded toEgress PEequipment

Egress PEThe device correctly sends the data packet to the correspondingVPNmiddle

the outer label of the packet received by the penultimate hop device is3

Egress PEDevice received untaggedIPdata pack

During the process of viewing the debug input through the SSH terminal, there is a lot of pop-up information. Which of the following operations can make the monitor terminal no longer pop up the debug message?

Open Notepad and enterundo terminal debugging,Copy the command line and paste it intoMonitorinterface

Open Notepad and enterundo debugging all,Copy the command line and paste it intoMonitorinterface

Open Notepad and enterundo terminal debugging,Copy the command line and paste it intoMonitorinterface

Open Notepad and enterundo debugging all,Copy the command line and paste it intoMonitorinterface

Open Notepad and enterundo terminal monitor,Copy the command line and paste it intoMonitorinterface

exit currentMonitorinterface, re-SSHLog in to the device to open a new oneMonitorinterface

area. have4indivualMAThe internet

area. have8indivualMAThe internet

area. have4indivualMAThe internet

Which of the following statements about VLAN aggregation is true?

OneSuper-VLANcan contain one or moreSub-VLAN

Sub-VLANfor isolating broadcast domains

Super-VLANOnly physical interfaces cannot establish Layer 3VLANIFinterface

OneSuper-VLANcan contain one or moreSub-VLAN

Sub-VLANContains physical interfaces. Three layers can be builtVLANIFinterface

Sub-VLANfor isolating broadcast domains

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

process1and process2ofOSPF LSD8within its areaLSAinconsistent

VRFttThe routing information will not be available nowOSPFprocess1in the routing table

VRF ttThe routing information will appear inOSPFprocess1in the routing table

process1and process2ofOSPF LSD8within its areaLSAinconsistent

process1and process2ofOSPF-LSDBits area0InsideLSAexactly the same

VRFttThe routing information will not be available nowOSPFprocess1in the routing table

As shown in the figure, a park has deployedIPv6For business testing, the network has4router. run0SPFV3Realize network interconnection. about theOSPFV3network generatedLSA. Which of the following statement it's wrong?

R1will receiveR2produced2indivualLink-LSA. Describe separatelyR2Information about the two links connected

R1will produceRouter-LSADescribing the device interface information will be received at the same timeR2andR3produced Router-LSA

R1ofLSDBhaveR3producedNetwork LSA. illustrateR3may be from this linkDR

R1will receiveR2produced2indivualLink-LSA. Describe separatelyR2Information about the two links connected

R2asA, BRWill produceInter-Area-Prefix-LSAdescribeArea 1ofIPv6address prefix, and advertise GiveR1andR3

As shown, all routers run OSPF. Which of the following statements is correct?

R2in the area1and area0will generateRouter LSA

R2WillR3GeneratedRouter LSAforward toR1

R2WillR1GeneratedRouter LSAforward toR3

R2only in area0generated inRouter LSA

According to this figure, which statement is correct about the IPv6 routing information calculated by the R4 router through IS-IS?

R4have2equivalentIS-ISdefault route

day4have1stripIS-ISdefault route

R4have2equivalentIS-ISdefault route

R4have2not equivalentIS-ISdefault route

R4withoutIS-ISrouting entry for

The OSPF protocol is run between CE and PE, when CE1 advertises the route of its site to CE2. Which of the following descriptions is incorrect?

whenPE2receivePEIsentBGProutedDomain IDSame as local forType3 LSA. PE2will generateType5 LSA

whenPE2receivePE1sentBGProutedDomain IDcorrect for all when different from localLSA. PE2will generateType5LSAorType7 LSA

whenPE2receivePE1sentBGProutedDomain IDWhen the same as local, forTypel LSAandType2LSA. PE2will generateType3 LSA

whenPE2receivePEIsentBGProutedDomain IDSame as local forType3 LSA. PE2will generateType5 LSA

PEIconfiguredDomain IDcan be used asBGPThe extended community attribute of is sent with the route toPE2

Huawei H12-831_V1.0 Practice Test 4 - Free Online Exam Prep & Questions

Spam

Selling illegal goods, money scams etc.

Hate Speech

Serious attack on a group.

Harassment and bullying

Harassing an individual (including doxing)

Harmful activities

Threatening or glorifying violence or serious harm, including self-harm

Adult content (Consensual)

Nudity/Sexual content

Sexual exploitation and abuse (child safety)

Sexually explicit or suggestive imagery or writing involving minors

Sexual exploitation and abuse (adults and animals)

Sexually explicit or suggestive imagery or writing involving non-consenting adults or non-humans

Plagiarism

Reusing content without attribution (link and blockquotes)

Poorly written

Not in English or has very bad formatting, grammar, and spelling

Inappropriate credential

Author's credential is offensive, spam, or impersonation

Other

Ex. Illegal content, incomplete question...

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