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Huawei H12-831_V1.0 HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Exam Practice Test

Demo: 39 questions
Total 266 questions
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HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Questions and Answers

Question 1

The default MPLS label publishing mode, label distribution control mode and label retention mode of Huawei routers are respectively

Options:

A.

Label release method - downstream autonomous methoD. label distribution control method - free methoD. label retention method - independent

B.

Label release method - free methoD. label distribution control method - independent methoD. label retention method - downstream autonomous method

C.

Label release method - downstream autonomous methoD. label distribution control method - independent methoD. label retention method - free method

D.

Label release method-independent methoD. label distribution control method-free methoD. label retention method-downstream autonomy

Question 2

When troubleshooting the EBGP neighbor relationship, you find that the two directly connected devices use the loopback interface to establish a connection, so execute display current-configuration configuration bgp to check the unitary setting of peer ebgp-max-hop hop-count, which of the following statements is correct?

Options:

A.

hop-countmust be greater than2

B.

hop-countmust be greater than15

C.

hop-countmust be greater than1

D.

hop-countmust be greater than255

Question 3

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?

Options:

A.

head office:Import Target 12:3; Export Targetr 3:12OBranchl:Import Target,3:12;Export Target 12:3OBranch2:Import Target: 3:12: Export Target: 12:3

B.

head officeImport Target:l:l;Export Target: 3:3OBranchl:Import

Targeta:3:3;Export Target: l:loBranch2:Import Target: 3:3; Export Target:2:2

C.

head office:Import Target 1:1, 2:2;Export Target: 3:3OBranchl:Import Target:3:3;

Export Target: l:loBranch2:ImportTarget:3:3; Export Target:2:2

D.

head office:Import Target: 2:2;Export Target:3:3oBranchl:Import Target:

3:3.Export Target: l:loBranch2:ImportTarget: 3:3; Export Target.2:2

Question 4

Which of the following statements about IPSG is false?

Options:

A.

IPSGcan preventIPaddress spoofing attack

B.

IPSGis a source based on a three-layer interfaceIPaddress filtering technology

C.

IPSGcan be turned onIPPacket inspection alarm function, linked with the network management to alarm

D.

able to passIPSGPrevent the host from changing privatelyIPaddress

Question 5

Can Huawei equipment perform traffic suppression for Mingbi packets?

Options:

A.

Unknown unicast

B.

known unicast

C.

multicast

D.

broadcast

Question 6

An engineer uses two routers to test IPv6 services, and simulates the headquarters and branches by running BGP4+

of interconnection. As shown in the figure, an engineer captures packets to view the update packets sent by R1. About this message 

Description of information, which of the following statements is correct

Options:

A.

The next hop address of the route described in this packet is:2001:db8::2345:l.:l

B.

This message describes the current revocationIPv6routing

C.

the route described in this packet may be throughimportbow

Question 7

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?

Options:

A.

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

B.

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

C.

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

D.

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

Question 8

In OSPFv3, an LSA whose propagation range is one area has_____kind. (Fill in Arabic numerals only)

Options:

Question 9

An engineer uses two routers to test IPv6 services, and simulates the interconnection between the headquarters and branches by running BGP4+. The logical topology of the network is shown in the figure. Regarding the transmission of IPv6 routes between the two devices, which of the following Is a statement wrong?

Options:

A.

The Next_Hop attribute must be an IPv6 global unicast address when routing

B.

BGP4+ transmits routing information between peers through Update packets

C.

If the MP_REA, CH_NLRI attribute is carried in the Update packet, it indicates that the advertisement is a reachable route

D.

When the route is transmitted, it will carry recognized mandatory attributes such as AS_Path

Question 10

Assuming that the neighbor relationship between BGP routers has been established successfully, the configuration on R1 is shown in the figure. ask for R1

Which router can the route entry 10.10.10.0/24 be delivered to the farthest?

AS 200

bgp 100

peer 13.X3 as-number 300

peer B3.33 connect * interface LoopBackO peer 3.33.3 route-policy COMMUNITY e»porx peer 3333 next >hop-local

peer Xl.3.3 advertise-cofnmunity

network 10.10.T0.0 24

route^poktcy COMMUNITY permit node 10 prefix COMMUNITY spply cocYWTUiiMty route-policy COMMUNITY permit node 20 «p ip prefix COMMUNITr index 10 permit

Options:

A.

R1

B.

R2

C.

R3

D.

R4

Question 11

Configured on an interface: isis timer hello 5 level-2, which of the following statements is correct?

Options:

A.

the interfaceLevel-2ofhelloThe packet sending interval is5s

B.

the interfaceLevel-1andLeva 1-2ofhell. The packet sending interval is3s

C.

the interfaceLevel-2ofCSNPThe packet sending interval

Question 12

From this picture, we can judge

Options:

A.

If not configured aboutAS_Pathrouting strategy, then3002:-4/128 —must not originate fromAS

65001

B.

R1does not have3002:3/128and3002.-4/128routing

C.

R1have3002.-3/128and3002:.4/128routing

D.

If not configured aboutAS_Pashrouting strategy, then3002:4/28must have originated fromAS 65001

Question 13

esigth uses different colors to distinguish different alarm levels, red represents emergency, orange represents important, and yellow represents

The table is secondary, and blue represents the prompt. Which of the following statements about different alarm levels is correct: (multiple choice)

Options:

A.

Prompt: A potential or imminent business-impacting failure has been detecteD. but currently has little business impact

B.

Minor: There is currently a certain impact on the business, but corrective actions are required to prevent serious failure alarms

C.

Urgent: Alerts that have affected the business and require immediate corrective action

D.

Important: An alarm that has affected the business and will have serious consequences if not handled in time

Question 14

If faced with a complex network failure, and it is estimated that the troubleshooting cannot be completed in a short period of time, and the user urgently needs to restore the availability of the network, then the correct approach is.

Options:

A.

Tell the user it's not possible

B.

Directly build an alternative network environment without notifying customers

C.

Always try to troubleshoot without informing the user of the current troubleshooting difficulty

D.

Communicate with users whether it is possible to skip the faulty node and build an alternative network environment

Question 15

As shown in the figure, in a medium-sized network, BGP generally deploys dual RRs to improve R reliability. When deploying dual RRs, the ClusterIDs of the two RRs are generally set to be the same. What is the reason for this?

Options:

A.

Prevent RR from receiving too many routes and causing insufficient memory

B.

prevent suboptimal

C.

prevent loops

D.

Prevent the client from receiving too many routes and causing it to run out of memory

Question 16

What is the LSA whose flooding range is the entire autonomous system in SPFV3?

Options:

A.

Link-LSA

B.

As-external-LSA

C.

Inter-Area-Prefix-LSA

D.

Intra-Area-Prefix-LSA

Question 17

As shown in the figure, all interfaces of the router enable DSPF. The cost value of the link is marked in the figure. R2

The LoopbackD interface is advertised in area 1, then the cost of R1 reaching 10.2/32 is? 

Options:

A.

200

B.

150

C.

50

D.

100

Question 18

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

Options:

A.

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

B.

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

C.

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

D.

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

Question 19

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

A,ShouldLSAis of typeAS-external-LSA

B. ShouldLSAThe described destination network is10.0.23.0/24

C. in the pictureLSAis generated by this router

D. This device isA, BR

Options:

Question 20

As shown in the figure, a park has deployedIPv6For business testing, the network has4router. run

0SPFV3Realize network interconnection. about theOSPFV3network generatedLSA. Which of the following statement it's wrong?

Options:

A.

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

B.

R1ofLSDBhaveR3producedNetwork LSA. illustrateR3may be from this linkDR

C.

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

D.

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

Question 21

As shown in the figure, private network routing information is exchanged between PE1 and PE2 and their respective CEs through OSPF, and the same DomainlD is set on both PE1 and PE2. When routes are imported from BGP to OSPF on PE2, it is possible that Which of the following types of SAs are passed to CE2?

Options:

A.

Typel LSA

B.

Type3 LSA

C.

Type7 LSA

D.

Type5 LSA

Question 22

The correct description for the configuration on this switch is: 

[Huawei]dhcp enable

[Huawei]interface Vlanif 100 [Huawei-Vlanif 100]dhcp select relay

Options:

A.

YoujizhiDHCPYuegen server and mouthDHCP relayByKmust be enabled globallyDHCP

B.

forVLAN100interface designationDHCPThe server group isdhcpgroupl

C.

First you need to createDHCPmonth starter group and add to server groupDHCPserver

D.

VANIF100The interface will receive theDHCPmessage, sent to the outside through the relayDHCP Server

Question 23

As shown below:

Options:

A.

R3andR1ofIS-LevelMismatch

B.

R3andR1different area codes

C.

R3andR1ofIIHAuthentication failed

D.

R3andR1ofSystem

Question 24

The ipv6 enable topology standard has been set in the S-IS protocol view. The meaning of this command is:

Pv4 shares a topology with IPv6.

Options:

A.

True

B.

False

Question 25

MPLS-straight is slower than IP forwarding.

Options:

A.

True

B.

False

Question 26

In BGP/MPLS IP VPN, the 0SPF multi-instance process uses the DN bit to prevent Type5 LSA loops.

Options:

A.

True

B.

False

Question 27

Which of the following sequences can be matched by the regular expression 100.S

Options:

A.

100

B.

1000

C.

10000

D.

1001

Question 28

In BGP4+, what is the content of the next hop network address field carried in the P_REA, CHLRI attribute in the Update packet?

Options:

A.

Can only be a global unicast address

B.

can just be a link-local address

C.

Can carry link-local addresses and global unicast addresses at the same time

D.

Only link-local addresses

Question 29

As shown in the figure, in a medium-sized network, BGP generally deploys dual RRs to improve R reliability. When deploying dual RRs, the Cluster IDs of the two RRs are generally set to be the same. The reason for this is

Options:

A.

Prevent RR from receiving too many routes and causing insufficient memory

B.

prevent suboptimal

C.

prevent loops

D.

Prevent the client from receiving too many routes and causing it to run out of memory

Question 30

After the VLAN-based MA, C address flapping detection function is configured, if the MA, C address flaps. The interface can be configured to perform actions according to requirements. Which of the following is NOT a configurable action?

Options:

A.

Traffic filtering

B.

send alert

C.

interface blocking

D.

MA, Caddress blocking

Question 31

Since BGP is an EGP routing protocol, BGP routing policies can only be deployed between EBGP neighbors.

The routing policy deployed between IBGP neighbors is invalid.

Options:

A.

True

B.

False

Question 32

Link LSAs of OSPFv3 are propagated throughout the area.

Options:

A.

right

B.

wrong

Question 33

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.

Options:

A.

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

B.

PE1orPE2±ofVPNInstance parameter configuration error

C.

PE1andPE2betweenLSPTunnel not established

D.

PF1orPE2with each otherCEMisconfigured routing protocol between

Question 34

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?

Options:

A.

100

B.

150

C.

50

D.

200

Question 35

BGP authentication can prevent illegal routers from establishing neighbors with BGP routers. BGP authentication can be divided into ID5 authentication and Keychain authentication. Which of the followingBGP packets will carryBGPKeychain authentication information?

Options:

A.

Open

B.

Keepalive

C.

Update

D.

Notification

Question 36

Which of the following reasons may cause the hosts in the same--VLAN LAN to fail to communicate with each other

Options:

A.

port isolation is configured on the switch

B.

the wrong port is configured on the machine, andMA, Caddress binding

C.

interface is artificialshutdownor the physical interface is damaged

D.

switchMA, Caddress learning errors

Question 37

The RR rules for advertising routes violate the IBGP split horizon rules, which may cause loops in the AS. Which routing attributes does RR use to prevent loops?

Options:

A.

Cluster List k

B.

Nexthop

C.

AS-PATH

D.

Originator ID

Question 38

Which of the following will not cause the VRRP backup group to flap?

Options:

A.

both endsVRRPBackup group preemption delay configuration is inconsistent

B.

BackupDevice Interface Packet Loss

C.

the time interval of the notification message is too small

D.

transmissionVRRPLink flapping of advertisement packets

Question 39

When deploying MPLS/BGP IP VPN, which of the following descriptions is wrong about using BGP to exchange routing information between PEs and CEs?

Options:

A.

existCEIn the case of multi-homing, enableBGP ASThe number substitution function may cause routing loops that can be passed throughBGP SoDpreventVPNIntra-site routing loops

B.

whenPEandCEbetweenBGPWhen exchanging routing information, if twoVPNThe autonomous system the site is in uses the same privateASnumber, can be passed throughASThe number replacement function is to use any specifiedASreplace the received private network route with theASnumber to preventASRoutes are discarded due to duplicate numbers

C.

existHub&Spokescene, whenHub-CEandHub-PEuseIGPTimeSpoke-PEandSpake-CEcannot makeEBGP

D.

whenPEandCEbetweenBGPWhen exchanging routing information, you do not need toPEPerform private network route import on theBGPoperation

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Demo: 39 questions
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