New Updated Huawei H12-831_V1.0 Exam Questions

dumps2022-09-13T02:22:09+08:00

We all know that the H12-831_V1.0 exam is one for HCIP-Datacom-Advanced Routing and Switching Technology certification. We just updated Huawei H12-831_V1.0 exam questions, which are helpful in your preparation. With all of Huawei certification H12-831_V1.0 exam updated questions, you can get certified in a short time. Free updated Huawei H12-831_V1.0 exam questions are available below.

Page 1 of 13

1. To speed up the detection of link failures in IS-IS networks, you can associate IS-IS with BFD.

TRUE

FALSE

2. In OSPF, ABR converts all Type 7 LSAs in the NSSA area to Type 5 LSAs.

TRUE

FALSE

3. Which of the following statements about IPSG is false?

IPSG can prevent IP address spoofing attacks

IPSG is a source IP address filtering technology based on Layer 3 connection

The IPSG can enable the IP packet inspection alarm function, and link the network management to alarm

IPSG can prevent the host from changing the IP address privately

4. The security protection actions that can be performed by a secure MAC address do not include which of the following?

Protect

Restrict

Shutdown

Remark

5. As shown in the figure, a campus has deployed IPv6 for service testing, and there are 4 routers in the network.

Run OSPFV3 to realize network interconnection.

Which of the following statements is false about the LSA generated by this OSPFv3 network?

R1 will generate the Router-LSA by itself to describe the device connection information, and it will also receive the Router-LSA generated by R2 and R3.

There are Network LSAs generated by R3 in the LSDB of R1

R1 will receive 2 Link-LSAs generated by R2

As an ABR, R2 will generate an Inter-Area-Prefix-LSA describing the IPv6 address prefix of Area1, and advertise it to R1 and R3

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

The type of the LSA is AS-external-LSA

The destination network described by this LSA is 10.0.23.0/24

The LSA in the figure is generated by this router

This device is an ABR

7. All routers run OSPF as shown.

Which of the following statements is correct?

R2 generates Router LSAs in both area 1 and area 0

R2 forwards the Router LSA generated by R3 to R1

R2 forwards the Router LSA generated by R1 to R3

R2 only generates Router LSA in area 0

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

R4 has 1 IS-IS default route

R4 has 2 IS-IS default routes of equal cost

R4 has 2 IS-IS default routes with unequal cost

R4 has no IS-IS routing entry

9. The routing attributes of the three routing entries are shown in the figure. It is assumed that the next hops of the three routing entries are reachable. When the three routing entries arrive at the BP router in sequence, which routing entry will BGP choose in the end by default?

Route B

Route C

Route A

10. As shown in the figure, Client1 and Client2 serve as clients of RR1 and RR2 at the same time. RR1 and RR2 are in the same Cluster, and R1 has entered 10 routes. It is assumed that BGP is configured correctly.

All neighbor relationships have been established. How many routing entries exist in the BGP routing table of Client2?

Page 2 of 13

11. Which of the following is not a hardware preparation for cutover?

Test the operation of the board

Power-on test

Device version check

Cable Continuity Test

12. Which of the following statements is false when troubleshooting the dual-active failure of the VRRP backup group?

There is no need to check whether the switch port that transmits VRRP advertisement packets is in the same VLAN

Need to check whether the VRRP group IDs on the interface are the same

Need to check whether the interface IP address is in the same network segment

Need to check whether the virtual IP addresses of the VRRP group are the same

13. When troubleshooting the EBGP neighbor relationship, you find that the two directly connected devices use the loopback port to establish a connection, so execute display current-configuration configuration bgp to check the configuration of peer ebgp-max-hophop-count. Which of the following statements is correct?

hop-count/ must be greater than 2

hop-count must be greater than 15

hop-county must be greater than 1

hop-count must be greater than 255

14. When a fault occurs, the fault can be classified to reduce the scope of fault location. Which of the following is not an interface configuration fault?

The duplex modes of the interfaces at both ends are inconsistent

IP address conflict

Inconsistent interface authentication

Inconsistent luminous power received at both ends

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

dir sdl

dir sd0

display patch-information

dir flash

16. As shown in the figure, the APLS LSP is configured in the network and the goal is to establish an LDP session between SWA and SWB, then which of the following statement is correct?

A. Configured correctly

B. No need to enable MPLS globally

C. No need to enable MPLS on the port

D. The mpls lsr-id of the two devices cannot be configured in the same way

17. As shown in the figure, OSPF is enabled on all interfaces of the router, and the cost value of the link is marked in the figure. The Loopback0 interface of R2 is advertised in area 1, then the Cost value of R1 reaching 10.0.2.2/32 is:

200

150

100

18. As shown in the figure, OSPF is enabled on all interfaces of the router. The ip address marked in the figure is the IP address of the loopback0 interface. The Loopback0 of R1, R2, and R3 is advertised in area 1, and the Loopback0 of R4 is advertised in area 0, Loopback0 of R5 announces which of the following functional addresses in area 2 can ping each other?

10.0.3.3 and 10.0.5.5

10.0.4.4 and 10.0.2.2

10.0.2.2 and 10.0.3.3

10.0.2.2 and 10.0.5.5

19. According to this picture, we can judge:

The system ID of R1 is ee8c.a0c2.baf1

R1 has both level1-1 and level-1-2 dimension information

R1 only has link status information of level1-2

In the leve1-2 network, there are a total of 8 routers

20. In the network shown in the figure below, if a remote LDP session between SWA and SWC is to be realized, which of the following statement is correct?

It is not necessary to specify the lsr-id of the correct peer

The configuration in the figure can already be implemented

You need to create a remote peer and specify the lsr-id of the peer

Need to configure the direct connection interface to establish a TCP connection

Page 3 of 13

21. As shown in the figure, MPLS/BGP IPVPN is deployed in the network, and the MP-BGP neighbor relationship is established between PE1 and PE2 through the Loopback0 interface. After the configuration is complete, it is found that CE1 and CE2 cannot learn routes from each other. Use the command on PE2 Looking at the neighbor information as shown, what is the most likely cause of the problem?

The VPN instance parameters on PE1 or PE2 are incorrectly configured

PE1 and PE2 do not have bell neighbors enabled in the BGP-VPN4 unicast address family view

The LSP tunnel between PE1 and PE2 is not established

Misconfiguration of routing protocols between PE1 or PE2 and their respective CEs

22. According to this figure, we can judge:

R1 is configured with zone authentication

The device type of R1 is Level-1

The device type of R1 is Leve-2

R1 sets routing domain authentication

23. According to this picture, we can judge:

The device type of R3 must be Level-1-2

Unable to determine the device type of R3

The device type of R3 must be Level-1

The device type of R3 must be Level-2

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

The IIH authentication of R3 and R1 failed

The System IDs of R3 and R1 are duplicated

The lS-Level of R3 and R1 do not match

The circuit-type of the interconnection interface of R3 and R1 does not match

25. Network administrator A wants to use ACL to match only the four routing entries 1, 3.5, and 7 in the figure. How many ACL rules does network administrator A need to configure at least?

26. As shown in the figure, an engineer uses 4 routers to test branch network interoperability. Among them, R1, R2, and R3 in branch 1 deploy OSPF to realize network interoperability. R2, R3, and R4 in branch 2 deploy IS-IS to realize network intercommunication.

Now the engineer wants to implement R1 to access the loopback interface address of R4. Which of the following operations can meet this requirement?

In the OSFF process and the IS-IS process of R2, the default route is advertised respectively

No configuration required

Advertise the default route only in the IS-IS process of R2

Advertise the default route only in the OSPF process of R2

27. According to this figure, it can be known that in VLAN 300, on 2020-06-04, from 17:22:38 to 17:22:44, how many MAC flaps does the 00e0-fc3d-3bdb have?

65535

300

28. According to this figure, we can judge:

R4 does not have any IS-IS neighbors

R4 and ee8c.a0c2.baf3 establish IPv4 and IPv6 IS-IS neighbors

R4 and ee8c.a0e2.baf3 only establish an IPv6 IS-IS neighbor

R4 and ee8c.a0c2.baf3 only establish an IPv4 IS-IS neighbor

29. As shown in the figure, OSPF is enabled on all interfaces of the router. Which of the following statements is correct?

The Type1 LSA generated by R2 in area 0 contains the routing information of 10.0.2.2/32

The Type5 LSA generated by R2 in area 0 contains the routing information of 10.0.2.2/32

The Type2 LSA generated by R2 in area 0 contains the routing information of 10.0.2.2/24

The Type3 LSA generated by R2 in area 0 contains the routing information of 10.0.2.2/32

30. 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-way devices, which of the following statements is false?

When routing is delivered, the Next Hop attribute must be an IPv6 global unicast address

BGP4+ transmits routing information between peers through Update packets

If the Update packet carries the AP REACH NLRI attribute, it means that the advertisement is a reachable route

Route transmission will carry recognized mandatory attributes such as AS Path

Page 4 of 13

31. As shown in the figure, Site1 and Site2 need to achieve mutual access through the operator's BGP/MPLS IPVPN. It is known that the public network tunnel between PE1 and PE2 has been established (the label information is shown in the figure), and PE1 has advertised the route of network segment 192.168.1.0/24 in Site1 to PE2 through the MPLS BGP 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 Site1, what should be the outermost label?

6661

6662

8888

32. Part of the configuration of R1 is as follows. Which statement about OSPF on R1 is correct?

The device type of R1 is Leve-2

The device type of R1 cannot be determined

The device type of R1 is Level-1

The device type of R1 is Level-1-2

33. Which is wrong with this configuration description?

If there is no SubOption information of Option82 in the DHCP request packet received by GigabitEthemnet0/0/1 interface, the device will generate Option82

Enabling DHCP Snooping configuration can be used to prevent DHCP Server bogus attacks

Configure the GigabitEthernet0/0/1 interface as a trusted interface

Enable DHCP Snooping configuration can be used to prevent ARP spoofing attacks

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

Which router can the routing entry 10.10.10.0/24 published by 1 be delivered to the farthest?

35. According to the configuration shown in the figure below, you can know that R4 has an interface advertised into IS-IS?

36. A campus deploys OSPF to achieve network interoperability. An engineer configures R2 as shown in the figure. Which of the following description of LSAs in the OSPF network is wrong?

[R2] acl 2000

[R2-acl-basic-2000] rule deny

[R2-acl-basic-2000] quit

#

[R2] ospf

[R2-ospf-1] area 1

[R2-ospf-1-area-0.0.0.1] filter 2000 import

[R2-ospf-1-area-0.0.0.1] quit

[R2-ospf-1] default-route-advertise always

There is Type5 LSA flooding in Area2

There is no Type3 LSA flooding in Area2

There is Type5 LSA flooding in Area1

There is no Type3 LSA flooding in Area1

37. As shown below:

The IS-Leve1 of R3 and R1 do not match

The area numbers of R3 and R1 are different

The IIH authentication of R3 and R1 failed

The System IDs of R3 and R1 are duplicated

38. OSPFV2 is an IGP running on an IPV4 network; OSPFv3 is an IGP 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 BDR.

As shown in the figure, an engineer uses three routers to test IPv6 services. He wants to realize the interconnection of IPv6 networks by running OSPFv3.

Which of the following statements about the election of the network DR is correct?

After the network converges, the engineer changes the priority of R1 to 100, the priority of R2 to 10, and the default value of R3. When the network converges again, R1 is the DR

After the network converges, a new device R4 is added to the broadcast link

After the network converges, R1 is powered off and restarted, and when the network converges again, R3 is the DR

After the network converges, R1 is the DR

39. As shown in the figure, OSPF is enabled on all interfaces of the router, and the cost value of the link is advertised in area 0 according to the Loogback0 of R2 as shown in the figure, then in area 1, both R2 and R3 will transmit 10.0 in the form of Typae3 LSA .2.2/32 routing information.

TRUE

FALSE

40. An enterprise purchased private lines from two operators. In order to optimize the lines, the enterprise used BGP to learn routing entries from the two operators. However, the enterprise found that the traffic of the egress route increased greatly after this configuration. After the network engineering investigation, it was found that the traffic of the two operators was passed to each other through the enterprise egress router.

Therefore, the enterprise intends to use the routing strategy so that the traffic of the packets of different carriers is no longer passed to each other. Is the configuration in the following figure correct?

TRUE

FALSE

Page 5 of 13

41. As shown in the figure, the operator's BGP MPLS IP VPN backbone network constructs SP through DP. If the two sites of user X are to communicate through the BGP MPLS IP VPN network, PE1 and PE2 must use a 32-bit mask Loopback interface address to establish MP-IBGP peer relationship.

TRUE

FALSE

42. As shown in the figure, OSPF is enabled on all interfaces of the router, where R4 and R5 can establish OSPF virtual connections.

TRUE

FALSE

43. As shown in the figure, OSPF is deployed in a campus, and Area1 is deployed as an NSSA area. By default, R2 will automatically generate a default route of Type7 LSA and flood it in the NSSA area.

TRUE

FALSE

44. As shown in the figure, on the R1 router, network administrator A can control the path of the traffic leaving AS100 after modifying the Local Preference value of the routing entry sent to R2 through the routing policy.

TRUE

FALSE

45. As shown in the figure, all routers run OSPF, because R3 is in the backbone area, so there are no three types of LSAs in R3's LSDB.

TRUE

FALSE

46. As shown in the figure, on the R1 router, network administrator A can control the path of traffic entering AS100 after modifying the MED value of the routing entry sent to R2 through the routing policy.

TRUE

FALSE

47. As shown in the figure, in a medium-sized network, in order to improve the reliability of RR, BGP generally deploys double R.

When deploying dual EE, the Cluster IDs of the two RRs are generally set to be the same. What is the reason for this?

Prevent RR from receiving too many routes and causing insufficient memory

Prevent suboptimal

Prevent loops

Prevent the client from receiving too many routes and causing insufficient memory

48. IS-IS is a link-state routing protocol that uses the SPF algorithm for route calculation. As shown in the figure, a campus deploys both IPv4 and IPv6 and runs IS-IS to achieve network interconnection, of which R2 only supports IPv4.

Which of the following statements is true about the topology calculation of this network?

If you want IPv4 and IPv6 network computation to form the same shortest path tree, you need to run the ipv6 enable topology ipv6 command to enable the IPv6 capability of the IS-IS process

By default, since R2 does not support Pv6

By default, IPv4 and IPv6 networks will be calculated separately to form different shortest path trees

By default, in the shortest path tree formed by IPv6 network calculation, the path from R1 to R4 is R1-R2-R4

49. What is the command to adjust the IS-IS interface link cost value?

isis cost

isis timer hello

isis circuit-level

isis circuit-type

50. Through the display ip interface GE0/0/0 command, you can view the statistics of ping packets received on this interface.

TRUE

FALSE

Page 6 of 13

51. BGP/MPLS IP VPN can only use LDP to build a public network channel.

TRUE

FALSE

52. In an MPLS network, SRs running the DP protocol exchange LDP messages to implement functions such as neighbor discovery, session establishment and maintenance, and label management. To ensure the reliability of message delivery, all LDP messages are sent and received based on TCP connections.

TRUE

FALSE

53. BGP routing policy can control the publishing and receiving of routes.

TRUE

FALSE

54. A campus has deployed IPv6 for service testing. In the initial stage of deployment, engineers wanted to achieve network interoperability through IPv6 static routes. When creating an IPv6 static route. You can specify both the outbound interface and the next hop, or only the outbound interface or only the next hop.

TRUE

FALSE

55. When configuring the DHCP Relay function on the device, the VLANIF interface of the relay connected to the client must be bound to a DHCP server group, and the bound DHCP server group must be configured with the IP address of the DHCP server to be proxied.

TRUE

FALSE

56. When MPLS is deployed in the network and the network layer protocol is IP, the route corresponding to the FEC must exist in the IP routing table of the LSR, otherwise the label forwarding entry of the FEC will not take effect.

TRUE

FALSE

57. 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.

TRUE

FALSE

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

TRUE

FALSE

59. In BGP MPLS IP VPN, if OSPF protocol is used to exchange routing information between PE and CE, the domain identifier (Domain ID) is used to distinguish whether the routes imported in the VPI instance come from the same OSPF domain.

TRUE

FALSE

60. The role of Link-LSA in OSPFv3 does not include:

Advertise the IPv6 prefix list of this interface to other routers on the link

Advertise the router's interface ID to other routers on the link

Advertise the link-local address of this interface to other routers on the link

Advertise the options set in the Network-LSA originating from this link to other routers on the link

Page 7 of 13

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

The VRRP backup group preemption delay configuration of the two countries is inconsistent

Packet loss on the backup device interface

The time interval of the notification message is too small

Link flapping for transmitting VRRP advertisement packets

62. Regarding multi-instance MCE (Mlulti-VPN-Instance CE, MCE), which of the following descriptions is wrong?

On the MCE device, you need to create their own routing and forwarding tables for different VPNs and bind them to the correct interface

Users who are connected to the same MCE but do not belong to a VPN instance cannot access each other

Devices with MCE function can access multiple VPN instances in BGP MPLS IP VPN applications, reducing the investment in user network equipment

There must be multiple physical links between MCE and PE to achieve isolation between different VPIN instances

63. In order to prevent hackers from attacking user devices or networks through MAC addresses, the MAC addresses of untrusted users can be configured as black hole MAC addresses to filter out illegal MAC addresses.

TRUE

FALSE

64. The ORF function of BGP can control the routing entries sent by neighbors. In order to achieve this purpose, the BGP router will send the list of routes to be filtered to the neighbor. Which tool is generally used to send the list to the neighbor?

ACL

Filter-Policy

IP Prefix List

Route-Policy

65. Which of the following descriptions about BGP/MPLS IPVPN data forwarding is wrong?

When data is transmitted in the BCP/MPLS IP VPN backbone network, it always carries two layers of labels

The inner label of data forwarding is allocated by MP-BGP

The outer label of data forwarding can be assigned by LDP

The data sent by PE to CE is IPv4 packet

66. If the sticky MAC function is enabled on an interface, what is the number of MAC addresses learned by the interface by default?

67. What is the most effective way to view device alarms through CLI?

display interface brief

display clock

display alarm

display current-configuration

68. After configuring the VLAN-based MAC address flapping detection function, if the MAC address flaps, you can configure the actions of the interface as required.

Which of the following is NOT a configurable action?

Traffic filtering

Send an alert

Interface blocking

MAC address blocking

69. In the test phase of the cutover, the criteria for indicating that the test has been completed are:

The configuration view result of the IP device is normal as the standard

Test that the network service is normal as the standard

The network is based on the normal test of my upper-layer application business

It is standard to check that the network is running normally

70. What is the meaning of the display current-configuration I include vlan command?

View the physical interface information bound under each VLAN

Check which VLANs are currently created

View the IP address of the VLANIF interface

View all configurations that contain the VLAN keyword

Page 8 of 13

71. MPLS has always been slower than IP forwarding.

TRUE

FALSE

72. IEIF expands the functions of OSPF by taking advantage of the strong expansibility of OSPF. To enable it to support IPv6 networks, the expanded protocol is called OSPFv3, and OSPFv3 is compatible with OSPFv2.

TRUE

FALSE

73. If the temperature of the device is found to be too high, it can be concluded that the fan has failed.

TRUE

FALSE

74. If the BFD session goes down, the direct link will fail.

TRUE

FALSE

75. Configure ipv6 preference in IS-IS protocol view. The function of this command is to configure the priority of IPv6 routes generated by IS-IS protocol.

TRUE

FALSE

76. When deploying BGPIMPLS IPVPN, when two VPNs have a common site, the common site must not use overlapping address space with other sites of the two VPNs.

TRUE

FALSE

77. In an operator's MPLS VPN 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 and distributes it on PE1 Released to PE2 with the label 1027. The outgoing label of the MPLS LSR-ID from PE2 to PE1 is 1025.

When a client on PE2 accesses 172.16.1.0/24, the frame sent by PE2, the inner and outer labels should be the combination of which of the following?

Outer label: 1025: Inner label: 1027

Outer label: 1027: Inner label: 1027

Outer label: 1027: Inner label: 1025

Outer label, 1025: Inner label: 1025

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

A sham link is a link between two VPN instances, and each VPN instance must have an endpoint address of the sham link, which must be a Loopback with a 32-bit mask in the VPN address space on the PE router interface address

In order to forward the VPN flow through the MPLS backbone network, the routing cost of the sham link should be less than the OSPF routing cost of the backdoor road

The endpoint address of the sham link is published by BGP as a VPNv4 address. Routes that have passed through the sham link can also be imported into BGP in the form of VPNv4 routes.

Sham link can be configured in any area, it needs to be configured manually, and there must be a route to the destination address of the sham link (the sham link endpoint address of the peer PE) in the local VPN instance

79. What is the Router-ID of OSPFv3?

100-bit value

128-bit value

32-bit value

64-bit value

80. Which of the following BGP routing attributes cannot control BGP routing?

MED

AS Path

Community

Originator ID

Page 9 of 13

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

When PE2 receives a BGP route from PE1 with a different Domain ID than the local one, it is correct for all LSAs

When PE2 receives the BGP route sent by PE1 and carries the same Domain ID as the local one, for Type1LSA and Type2LSA

When PE2 receives the BGP route sent by PE1 and carries the same Domain ID as the local one, the Type3LSA

The Domain ID configured on PE can be used as the extended community attribute of BGP and sent to PE2 along with the route

82. In the process of establishing an LDP session, the active party will first send Initialization information to negotiate parameters. If the passive party does not accept the negotiated parameters, it will send:

Keepalive Message

Initialization Message

Hello Message

Error Notification Message

83. What is the purpose of configuring LSP fragmentation on an IS-IS device?

Make the device unable to establish IS-IS neighbors

Enable the device to support more IS-IS routing entries

Prevent the device from learning IS-IS routing information

has no practical purpose

84. The Router LSA of a certain router is shown in the figure. Which of the following statements is wrong?

The Router ID of this router is 10.0.12.1

This router is the DR

This router has established an adjacency relationship

This router supports external route import

85. If the display current-configuration can reveal the IS-IS configuration, but there is no IS-IS configuration in the display saved-configuration, then the explanation?

Flash running IS-IS configuration, not saved to memory

The running IS-IS configuration in memory has been saved to Flash

No IS-IS command entered

IS-IS configuration running in memory, not saved to Flash

86. The IS-IS Leve1-1 neighbor between R3 and R4 is not established. What is the possible reason based on the information in this figure?

The circuit-type of the interconnection interface of R3 and R4 does not match

The area numbers of R3 and R4 are different

IS-Leve1 of R3 and R4 do not match

The IIH authentication of R3 and R1 failed

87. OSFFv2 is an IGP running on an IPv4 network, and OSPFV3 is an IGP running on an IPv6 network. Compared with OSPFv2, OSPFv3 has a similar LSA type, but has slightly different functions. Which of the following is not included in the LSA type of OSPFv3?

AS-External-LSA

Router-LSA

ASBR-Summary-LSA

Network-LSA

88. What is the meaning of ipv6 enable topology ipv6 in IS-IS protocol view?

SPF calculation is performed separately in the topology of IPv4 and IPv6

has no meaning

SPF calculation that does not support IPv6

IPv4 and IPv6 use the same topology to perform SPF calculation

89. Which of the following tools cannot be used to match BGP routing entries?

Community Filter

Advanced ACL

Basic ACL

IP Prefix List

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

TRUE

FALSE

Page 10 of 13

91. After reset isis all is executed, the IS-IS protocol process needs to be restarted, the neighbors need to be re-established, and various IS-IS statistics will not be cleared.

TRUE

FALSE

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

When the PE and CE exchange routes through BGP, a BGP process needs to be created on the CE for each VPN instance

MP-BGP's packet types and VPNv4 route advertisement policies are the same as BGP-4

MP-BGP needs to assign private network labels to VPNV4 routes

MP-BGP advertises VPNv4 routes through MP REACH NLRI and MP UREACH NLRI attributes

93. OSPFv3 adopts the same route advertisement method as OSPFv2: it is advertised through the network command in the OSPFv3 area view.

TRUE

FALSE

94. Through the VLAN aggregation technology, one Sub-VLAN can correspond to multiple broadcast domains, which improves the flexibility of addressing.

TRUE

FALSE

95. MACsec can provide users with secure MAC layer data transmission and reception services.

Which of the following is not a service provided by MACsec?

Integrity Check

Controllability Check

User Data Encryption

Data source authenticity verification

96. Which of the following description of TTL in MPLS Header is correct?

TTL that acts like an IP header

To control label distribution

Limit the LSR

Control of upstream equipment for label distribution

97. As long as both parties A and B are present at the project acceptance meeting, no third party is required.

TRUE

FALSE

98. When Mr. Wang unpacked and inspected the goods, he found that the appearance of the equipment was not damaged, and all the modules of the equipment were running normally when the power was first turned on, but after 24 hours of continuous operation, the board failed, then this situation is not eligible for the DOA process.

TRUE

FALSE

99. When the device is used as an SSH server, a local key pair must be configured.

TRUE

FALSE

100. The client's project team, as the end user of the network, makes the final evaluation of the network project.

TRUE

FALSE

Page 11 of 13

101. If the neighbor does not advertise a certain route, it means that the neighbor may not put the descriptive information about the route into the local OSPF link state database.

TRUE

FALSE

102. If the goods counted are inconsistent with the quantity on the packing list, you can unpack and inspect the goods before contacting the manufacturer for processing.

TRUE

FALSE

103. The operation process for putting the equipment on the shelf is to prepare the tools first, then install the mounting ears, install the floating nuts and slides according to the site conditions, and finally install the equipment to the cabinet.

True

False

104. When upgrading equipment software, it is necessary to make adequate preparations, and formulate upgrade plans and rollback plans.

True

False

105. After deploying PPP Multilink, data will be evenly distributed on each member link according to the source address and destination address.

True

False

106. Access control refers to restricting or blocking specific access traffic based on the needs of business management and control on the basis of reachable network routes.

True

False

107. High-risk operations refer to all operations that may affect the stable operation of equipment, the normal operation of customer services, or the normal monitoring of network management.

True

False

108. The preliminary investigation of the cutover project is mainly to communicate and coordinate with customers and other participants, and collect network information for analysis.

True

False

109. When troubleshooting network faults, you judge and eliminate the root cause of the problem layer by layer in the order of access layer, aggregation layer, and core layer. Which of the following is this method of network troubleshooting?

Block method

Contrastive configuration method

Segmentation

Bottom-up approach

110. On the boundary between the enterprise network and the external network, what kind of equipment is generally deployed on the outermost part of the enterprise network.

IDS

IPS

VPN

Page 12 of 13

111. On Monday morning, you get a call from your office desk, an employee says he can't access the internet from his PC and wants your technical support. So you tested it with the ping command on his PC, and used the tracert command to see where the packet loss occurred.

Which of the following is this network troubleshooting method?

Top-down approach

Confirm the business traffic path

Bottom-up approach

Contrastive configuration method

112. When troubleshooting TELNET login failure, which step should be done first?

Check whether the client can ping the server

Check whether the number of users logging in to the device has reached the upper limit

Check whether ACL is configured in the VTY user interface view on the device

Check whether the protocol configuration allowed for access in the VTY type user interface view is correct

113. During network troubleshooting, you try to ping the opposite destination host and find that all packets are lost.

So what is the best way to troubleshoot next?

Contrastive configuration method

Bottom-up approach

Confirm the business traffic path

Top-down approach

114. Which of the following is correct when conducting equipment environmental inspections?

The equipment should be placed in a ventilated and dry environment, and the place should be firm and level. Only a small amount of debris is allowed to accumulate around the equipment

In order to save energy, only the current temperature of the equipment room is required to be within the range specified by the equipment, and the air conditioner is not required to run continuously and stably

Recommendations for power cables and service cables - lay out together and should be neat and orderly

When checking whether the grounding method and grounding resistance meet the requirements, it is generally required that the working ground, protection ground and building lightning protection ground of the computer room should be deployed separately.

115. When performing software and configuration backups, which of the following is correct?

After the configuration of the device is changed, there is no need to back up the configuration file

The purpose of backup is to restore network function in extreme cases

License does not need to be backed up

The software version should be backed up, and the same product and the same version should be backed up multiple times

116. Which of the following is not a primary role in developing a project delivery process

Increase customer satisfaction

Clear division of responsibilities

Improve work efficiency

Reduce project risk

117. In order to improve the stability of STP operation, the network administrator decides to configure some features or protection mechanisms of STP on the switch. Which of the following configuration ideas is correct?

Configure the user's access port as an edge port to prevent users from accessing the switch on this port

Configure Root Guard on the user's access port to ensure that the user cannot access a high-priority switch

Configure Loop Guard where there is a loop in the network to ensure that the loop is always blocked

After configuring BPDU Guard, the switch will check the validity of each BPDU received to prevent forged BPDU attacks

118. In order to quickly detect network link failures, which of the following protocols can we deploy?

BFD

RSTP

ISPF

Smart-Link

119. MTBF, MRRT and other indicators are used to describe which of the characteristics of the network?

Economical

Extensibility

Availability

Security

120. What is the formula for calculating availability?

MTBF/MTTR/100%

MTTP/MTBF*100%

(MTBF+MTTR)/MTBF100%

MTBF/(MTBF+MTTR)*100%

Page 13 of 13

121. Regarding the content of network security optimization, which of the following options is incorrect?

Administrative Security

Border Security

Access Control

Log Management

122. Which of the following description of the Confirm Failure phase in the Structured Network Troubleshooting Process is correct?

Should pay attention to how to better solve the fault regardless of whether the fault belongs to its own responsibility.

Attention should be paid to the opinions of users, and faults should be judged based on the judgment of users.

The impact should be minimized and others should not know that the network is down.

Should confirm whether the non-disabled work is within the scope of their responsibility.

123. The three authorizations required for high-risk operations do not include:

Administrative Authorization

Technology Authorization

Customer Authorization

Administrative Authorization

124. When a large number of IP phones and WLAN APs need to be accessed in the network, which type of switch is generally considered?

Switches with SACG function

Switch with STP edge port capability

Switch with QoS function

Switches with POE function

New Updated Huawei H12-831_V1.0 Exam Questions

New Updated Huawei H12-831_V1.0 Exam Questions

Share this post

Leave a Reply Cancel reply

Related Posts