[Q128-Q149] H12-831_V1.0 Certification – The Ultimate Guide [Updated 2022]

5/5 - (1 vote)

H12-831_V1.0 Certification – The Ultimate Guide [Updated 2022]

H12-831_V1.0 Practice Exam and Study Guides – Verified By Free4Dump

NO.128 As shown in the figure, OSPF is enabled on all interfaces of the router. Which of the following statements is correct?

R2in the area0generated inTypel LSAcontains10.0.2.2/32routing information

R2in the area0generated inType5 LSAcontains10.0.2.2/32routing information

R2in the area0generated inType2 LSAcontains10.0.2.2/24routing information

R2in the area0generated inType3 LSAcontains10.0.2.2/32routing information

NO.129 A certain park deployed both IPv4 and IPv6 networks for service testing, and IS-IS was run to achieve network interconnection. IS-IS routing protocol has good scalability and is widely used in existing networks.
Regarding IS-IS scalability, which of the following statements are correct? (Multiple choice)

IS-IS uses TLV structure to construct messages, which makes IS-IS more flexible and expandable

For IS-IS, adding new features only needs to add a new TLV

IS-IS needs to add TLV to carry Pv6 address information in order to support PV6

NLPID is a new TLV of IS-IS to support IPv6

NO.130 MPLS-straight is slower than IP forwarding.

True

False

NO.131 What is the most effective way to view device alarms through CLI?

display interface brief

display c1ock

display alarm

display current-configuration

NO.132 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

MA, CAddress table flapping

NO.133 EGP authentication can prevent illegal routers from establishing neighbors with BCP routers. BCP authentication can be divided into MD5 authentication and Keychain authentication. Which of the following BGP messages will carry BCGP Keychain authentication information? ((Multiple choice)

Open

Update

Notification

Keepalive

NO.134 In order to publish IPv6 routes in BGP4+, what fields are added in Update?

A new NLRI type, IPv6_NLR, which carries IPv6 NLRl prefix length and IPv6 NLRl prefix

A new path attribute: MP_UNREACH_NLRl

A new path attribute: MP_REACH_NLRI

A new path attribute: IPv6_REACH_NLRI

NO.135 In BGP/MPLS IP VPN, the 0SPF multi-instance process uses the DN bit to prevent Type5 LSA loops.

True

False

NO.136 BFDLink state detection at the heart (millisecond) level can be achieved.

right

wrong

NO.137 Match the alarm severity to the severity of the fault and countermeasures

Critical”, Major-2, Minor-3, Warning-4 A

Critical-3, Major-2, Minor-1, Warning-4

NO.138 Which of the following descriptions is correct about configuring static LSPs in MPLS networks?

when a certainLSRforEgress LSR, you only need to configureIn Label,The range is 16-1023

when a certainLSRforTransit LSR, you need to configureIn LabelandOut labeljn LabelThe range is 16~1023,Out LabelThe range is16~1048575

when a certainLSRforTransit LSRneed to be configured at the same timeIn LabelandOut Label,The range is 16-1023

when a certainLSRforIngress LSR, just configureOut Label,The range is 16~1048575

NO.139 In the finishing work of the structured network troubleshooting process, which of the following are the documents that need to be handed over? (Multiple choice)

Maintenance suggestions to avoid the failure

Troubleshooting summary report

Troubleshooting process documentation

NO.140 What are the wrong statements about OSPF’s Router LSA and Network LSA?

runDSPFThe router must generateNetwork LSA

runOSPFThe router must generateRouter LSA

OSPFmust exist in the networkRouter LSAandNetwork LSA

Network LSA, Carry both topology and routing information

NO.141 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:

MPLS VPNThe outer label is made byLDPprotocol or statically assigneD. the inner label is assigned by the correct end MP-BGPassigned by neighbors

By default, the outer label is popped before the packet is forwarded to the last hop device

M PLS VPNThe outer layer is labeled as a private network label, and the inner layer label is called a public network label.

Layer labels are used inPEThe device sends the packet correctly to the correspondingVPNmiddle

NO.142 Which of the following are static information coke analysis?

Interface Type

Packet loss rate

License

Equipment type

NO.143 In a multi-level RR scenario, a large number of second-level RR are connected to the first-level RR, which may cause the BGP routing table of the first-level RR to overflow. What method can be used to reduce the risk of overflow of the BGP routing table of the first-level RR?

ORF

Route aggregation

Routing control

Set the same Cluster-lD

NO.144 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?

The phenomenon is abnormal, the device has an operating system failure

Engineer A’s operation error

Engineer B’s operation error

The destination port numbers of the UDR packets serving tracert are different, and the hashes reach different equivalent next hops.

NO.145 The routing attributes of the three routing entries are shown in the figure. Assuming that the next hop of the three routing entries are all reachable, when the three routing entries arrive at the BP router in sequence, by default, BGP will finally select one route entry?

Route B

Route C

Route A

NO.146 As shown in the figure, Client1 and Client2 act as clients of RR1 and RR2 at the same time, RR1 and RR2 are in the same Cluster, and R has introduced 10 routes. Assume that the BCP configuration is correct.

The neighbor relationship has been established. How many routing entries are there in the BGP routing table of Client2 ultimately?

NO.147 The Router LSA of a router is shown in the figure. Which of the following statements is wrong?

of this routerRouter IDfor10.0.12.1

This router isDR

This router has established an adjacency relationship

This router supports external route import

NO.148 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 an LDP message type?

Discovery

Announcement

Conversation message

Label exchange messages

NO.149 In addition to the virtual link, what type of IPv6 address is the source IPv6 address of the He11o packet of OSPFv3?

IPv6 anycast address

Unique local address

Global unicast address

Link local address

Loading …