Huawei H12-831_V1.0 Questions and Answers

dumps2021-12-09T02:59:31+08:00

H12-831_V1.0 HCIP-Datacom-Advanced Routing & Switching Technology questions and answers are available, which are valid in the preparation. There are 60 questions in real Huawei H12-831_V1.0 exam, and you have 90 minutes to finish all the questions. The required passing score of Huawei H12-831_V1.0 exam is 600. The available languages are English and Japanese. The exam format is Single-answer Qusetion, Multiple-answer Question, True or false, Short Response Item, Drag and Drop Item. Free Huawei H12-831_V1.0 questions and answers are available below.

Page 1 of 9

1. When deploying MPLS/BGP IP VPN, regarding the use of BGP to exchange routing information between PE-CE, which of the following description is wrong?

In the case of CE multi-homing, enabling the BGP AS number replacement function may cause routing loops, which can be used to prevent routing loops in VPN sites through BGP SoD

When PE and CE use BGP to exchange routing information, if the autonomous systems of two VPN sites use the same private AS number, the AS number replacement function can be used, that is, the received AS number can be replaced with any designated AS number. The AS number in the private network route to prevent the route from being discarded due to repeated AS numbers

In the Hub&Spoke scenario, when Hub-CE and Hub-PE use IGP, Spoke-PE and Spoke-CE cannot enable EBGP

When BGP is used to exchange routing information between PE and CE, there is no need to import BGP private network routes on PE

2. As shown in the figure:

There is Type 5 LSA flooding in Area2

There is no Type 3 LSA flooding in Area2

There is Type 5 LSA flooding in Area1

There is no Type3 LSA flooding in Area1

3. Which of the following is not part of the preliminary preparations for the cutover plan?

On-site defense

Cutover target

Introduction to the current network

Risk assessment

4. Which statements are wrong about OSPF Router LSA and Network LSA? (Multiple choice)

The router running DSPF must generate Network LSA

Routers running OSPF must generate Router LSA

There must be both Router LSA and Network LSA in the OSPF network

Network LSA carries both topology and routing information

5. Which of the following statements about the MP_REACH_NLRI attribute of BGP4+ is correct? (Multiple choice)

The length of the next hop address can be 16 or 3

The value of AFI (address family) is 2, which represents IPv6

The NLRI field carries IPv6 routing prefix and mask information

When the length of the next hop address is 16, the Network Address of Next Hop carries the link local address

6. When deploying BCPIMPLS TP VPN, the OSPF VPN route tag (VPN Route Tag) is not transmitted in the MP-BGP extended community attributes. It only makes sense on PE routers that receive MP-BGP routes and generate OSPF LSA.

TRUE

FALSE

7. Regarding sham link, which of the following description is wrong?

The sham link is a link between two VPN instances. 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 advertised as a VPhv4 address by BG

Routes that have passed sam1ik can also be imported into BGP in the form of VPNv4 routes

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

8. As shown in the figure, OSPF is deployed in a campus, and Area 1 is deployed as an NSSA area. By default, R2 will automatically generate a Type 7 LSA default route and flood it in the NSSA area.

TRUE

FALSE

9. ping -a X-c Y-s z -vpn-instance M 10.5.16.2, what is the meaning of this command? (Multiple choice)

The ping sends Y ICMP requests

The ICMP request of the ping, the packet size is Z (excluding IP and ICMP header)

The source IFP address of the ping packet is X

The ping packet belongs to VPN instance M

10. (Connection question) Please match the command with the realized function.

Page 2 of 9

11. 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

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

The type of the LSA is AS-externa1-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 ABR

13. According to this picture, what can we judge? (Multiple choice)

The device whose system-ID is ee8c. a0c2.baf2, and its type is Level-1

The device whose system-ID is ee8c.a0c2.baf2, and its type is Level-1-2

R4 belongs to Level-1 only

R4 belongs to Level2 only

14. The Discovery message of LDP is used for neighbor discovery, and LDP has different discovery mechanisms when discovering neighbors. Then, which of the following statements about Discovery message in the basic discovery mechanism is correct? (Multiple choice)

After the TCP connection is established, the LSR does not continue to send Hello Message

The destination IP address of the message is the multicast IP address 224.0.0.2

This message is encapsulated in a UDP message, and the destination port number is 646

The message is sent to the designated LDP Peer

15. According to this picture, we can judge:

R4 does not have any IS-IS neighbors

R4 and ee8c.aOc2.baf3 have established IPv4 and IPv6 IS-IS neighbors

R4 and ee8c.aOe2.baf3 only established IPv6 IS-IS neighbors

R4 and ee8c.aOc2.bat3 only established IPv4 IS-IS neighbors

16. What is the flooding scope in OSPFv3 for the LSA in the entire autonomous system?

Link-LSA

As-external-LSA

Inter-Area-Prefix-LSA

Intra-Area-Prefix-LSA

17. MPLS has always been slower than IP forwarding.

TRUE

FALSE

18. Which of the following statements about VLAN aggregation is correct? (Multiple choice)

Super-VLAN only contains physical interfaces and cannot establish a Layer 3 VLANIF interface

A Super-VLAN can contain one or more Sub-VLANs

Sub-VLAN contains physical interfaces. A three-layer VLANIF interface can be established

Sub-VLAN is used to isolate the broadcast domain

19. According to the configuration shown in the figure below, you can know that how many interfaces of R4 are advertised into IS-IS?

20. Regarding the MPLS forwarding process, which of the following description of Ingress node forwarding is correct? (Multiple choice)

After receiving the data packet, the Ingress node will first check the ILM table to find the Tunnel ID

Press the obtained label in the IP packet, and process EXP according to the QoS policy, and process L at the same time, and then send the encapsulated MPLS packet to the next hop

Find the corresponding NHLFE entry according to the Tunnel ID of the ILM table, and associate the LFIB entry with the NHLFE entry

Check the NHLFE entry, you can get the outgoing interface, next hop, outgoing label, and label operation type. The label operation type is Push

Page 3 of 9

21. An engineer used two routers to test IPv6 services, and simulated the interconnection between headquarters and branches by running BGP4+.

The logical topology of the network is shown in the figure. Regarding the transmission of IPv6 routes between two devices, which of the following statements is wrong?

When routing, the Next_Hop attribute must be an IPv6 global unicast address

BGP4+ transmits routing information between peers through Update messages

If the Update message carries the MP_REACH_NLRI attribute, it means that the advertised route is reachable

When routing, it will carry AS_Path and other recognized mandatory attributes

22. Regarding BGP/MPLS IPVPN data forwarding, which of the following description is wrong?

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

The inner label during data forwarding is assigned by MP-BGP

The outer label during data forwarding can be allocated by LDP

The data sent by the PE to the CE is an IPv4 packet

23. According to this picture, what can we judge? (Multiple choice)

The device type of R1 is definitely not Leve1-1

R1 has 6 IS-IS IPv6 routes

R1 does not have IS-IS IPv6 routing

IS-IS IPv6 must be enabled on GigabitEthernet0D/1 of R1

24. OSPF is deployed in a campus to realize network interoperability. The L SDB of R2 is shown in the figure. What information can be derived from this LSDB? (Multiple choice)

There is no Type3 LSA in Area1, it may be that the outbound direction of R2 in Area1 is correct. Type3 LSA is filtered

Area 1 is an NSSA area

R2 converts the default route of Type7 LSA to the default route of Type5 LSA

R2 has issued a default route in the OSPF process

25. Which of the following series can be matched by the regular expression 100.S? (Multiple choice)

100

1000

10000

1001

26. (Drag and drop) As shown in the figure, there is a message containing three-layer label headers. Please select the corresponding values of the X, Y, and Z fields in the figure. (Decimal)

27. According to this picture, what can we judge? (Multiple choice)

If the routing policy on AS_Path is not configured, then 3002:-4/128 must not originate from AS 65001

R1 does not have routes of 3002:.3/128 and 3002.-4/128

R1 has routes of 3002.-3/128 and 3002:.4/128

If the routing policy on AS_Pash is not configured, then 3002:4/28 must originate from AS 65001

28. Regarding BGP/MPLS IPVPN routing interaction, which of the following descriptions is wrong?

The egress PE can send IPv4 routes to the remote CE through BGP, IGP or static routing

After the egress PE receives the VPNv4 route advertised by the ingress PE, it filters the VPNv4 route according to the RT attribute carried by the route

The exchange between PE and CE is IPv4 routing information

The ingress PE changes the IPv4 route received from CE to VPNv4 route, and saves it according to different VPN instances

29. Regarding the difference between NSR and NSF, which one is correct?

NSF does not need neighbor routers to complete

NSR must rely on neighbor routers to complete

NSF must rely on neighbor routers to complete

Both NSR and NSF need neighbor routers to complete

30. Traditional BGP4 can only manage IPv4 unicast routing information. In order to provide support for multiple network layer protocols, MP-BGP extends BGP-4.

MP-BGP uses address families to distinguish different network layer protocols. Which of the following address families are currently supported? (Multiple choice)

BGP-VPNv4 address family

BGP-IPv6 unicast address family

BGP-IPv4 broadcast address family

BGP-MP instance IPv6 address family

Page 4 of 9

31. Which of the following description of the configuration on this switch is correct? (Multiple choice)

To configure the DHCP server and DHCP relay, DHCP must be enabled globally

Specify the DHCP server group as dhcpgroup1 for the VLAN100 interface

First, you need to create a DHCP server group and add a DHCP server to the server group

The VANIF100 interface will send the received DHCP messages to the external DHCP Server through the relay

32. 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

33. What is the value of OSPF and BFD linkage?

The hello sending interval of OSPF is at the second level, which is faster than BFD inductive link state

The sending interval of BFD packets can reach the millisecond level, which is slower than the OSPF inductive link state

Through the BFD detected at the millisecond level, the OSPF status is associated to achieve the purpose of OSPF quickly inductive link state

Any change in the BFD status will not affect the OSPF neighbor status

34. The output information of a router is as follows. Which of the following reasons cause the OSPF adjacency relationship to fail to be established normally? (Multiple choice)

Inconsistent area codes

Inconsistent area types

The IP address mask of the interface is inconsistent

The interval for sending Hello packets is inconsistent

35. 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 achieve network interoperability. R2, R3, and R4 in branch 2 deploy IS-S to achieve network interoperability.

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

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

No configuration is required

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

Advertise the default route only in the OSPF process of R2

36. BGP routing strategy can control the distribution and reception of routes.

TRUE

FALSE

37. As shown in the figure, the entire network of a certain company uses OSPF to get through the network. However, RouterS and RouterE cannot establish an OSPF neighbor relationship. When detecting OSPF failures, network administrators can execute the display ospf 100 () interface GEO/0/1 command on RouterS to obtain error-related information. Users can perform OSPF failure diagnosis based on this information. (Please use English lowercase letters to complete the command, and the command cannot be abbreviated)

38. According to this picture, what can we know? (Multiple choice)

R1 access 172.17.1.5 has a loop

R1 has a route to 172.17.1 5

R1 does not access the route of 172.17.1.5

R1 accesses the path of 172.17.1.5 without any problems

39. By default, which of the following secure MAC address types will be lost after the device restarts?

Black hole MAC address

Sticky MAC address

Secure dynamic MAC address

Secure static MAC address

40. Which of the following statements about LDP label retention-free way is correct? (Multiple choice)

Need more memory and label space

Keep all labels distributed by neighbors

Only keep labels from next-hop neighbors, discard all labels sent by non-next-hop neighbors

Save memory and label space

Page 5 of 9

41. From the user's point of view, any phenomenon that affects the business can be defined as a failure.

TRUE

FALSE

42. Which of the following descriptions about TTL in the MPLS header are correct? (Multiple choice)

There are two ways to deal with MPLST correctly and TT

One is to copy the TTL value of the MPLS header when an IP packet enters the MPLS network. The other is to set the TTL of the MPLS header to 255 at the ingress LE

Can prevent infinite loop forwarding of messages

The processing method of copying the IP TTL value hides the LSR of the MPLS domain and plays a certain security role

When the TTL of the shell is disabled, tracert can see the LSR of the MPLS domain that it passes through

43. Which packets can Huawei equipment perform traffic suppression for? (Multiple choice)

unknown Unicast

Known unicast

Multicast

Broadcast

44. Which packets can Huawei devices perform traffic suppression for? (Multiple choice)

Unknown unicast

Known unicast

Multicast

Broadcast

45. A router LSA is shown in the figure. Which of the following statement is wrong?

The Router ID of this router is 10.0.12.1

This router is DR

The router has established adjacency

This router supports the import of external routes

46. 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 lpv6

Doesn't have any meaning

Does not support IPv6 SPF calculation

IPv4 and IPv6 use the same topology for SPF calculation

47. IEIF has extended the functions of OSPF by taking advantage of the strong scalability of OSPF. To enable it to support IPv6 networks, the expanded protocol is called OSPFv3, and OSPFv3 is compatible with OSPFv2.

TRUE

FALSE

48. Which description is correct about the label encapsulation format in MPLS? (Multiple choice)

The total length of a single MPLS label is 4 bytes (32 bits)

For Ethernet and PPP packets, the label stack is located between the layer 2 header and the data like a "underlay*": when there is a VLAN tag, the MPLS header is placed between the Ethernet header and the VLAN tag

The S field in the label: 1 bit, used to identify whether the label is the bottom label of the stack, when the value is 1, it indicates the second-to-last label

The TTL field in the label is similar to the TTL (Time To Live.) in the IP packet, and it also has the effect of preventing loops.

49. As shown in the figure, the router runs OSPF and Area2 is a completely stub area. Please match the type of LSA contained in each area with the area ID.

Type1 LSA 、 Type2 LSA 、 Type3 LSAType1 LSA 、 Type2 LSA 、 Types LSA 、 Type5 LSAType1 LSA 、 Type2 LSA 、 Type3 LSA 、 Type4 LSA 、 Type5 LSA

50. Please sort by the cutover execution steps.

After the cutover is completed, observe the status of the network on the new device

Perform business inspections on new equipment

Cut over business from old equipment to new equipment

Install new equipment and configure

After ensuring the normal business operation of the new equipment, the old equipment goes offline

Page 6 of 9

51. Regarding the role of ping and tracert, which of the following statements is correct?

Ping detects the two-way reachability between the correct end and the one-way icmp echo request packet

Tracert must be able to trace every hop IP address from source to destination

Ping verifies the reachability from the local end to the opposite end, it does not mean that the opposite end is reachable from the local end

Tracert has the same function as ping, but the name is different

52. MPLS has the concept of FEC-Forwarding Equivalence Class, so on which of the following standards cannot FEC be allocated based?

Class of Service

Fragment of offiset

Application Protocol

Destination Addess

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

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

Users connected to the same MCE but not belonging to a VPN instance cannot access each other

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

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

54. In an intra-domain MPLS VPN network, when a data packet enters the public network and is forwarded, it will be encapsulated with two layers of MPLS labels. Which of the following description is wrong about the two layers of labels? (Multiple choice)

The outer label of MPLS VPN is allocated by the LDP protocol or statically, and the inner label is allocated by the MP-BGP neighbor at the correct end.

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

The outer label of MPLS VPN is called the private network label. The inner label is called the public network label.

The outer label is used to correctly send the data packet to the corresponding VPN on the PE device

55. Which of the following commands can be used to view BGP VPNv4 routing and BGP private network routing information on PE?

display bgp routing-table address-family vpnv4

display bgp vpnv4 routing-table

display bgp routing-table ipv4-family vpnv4

display vpnv4 bgp routing-table

56. The deployment of port isolation technology in Ethernet can realize Layer 2 intercommunication and Layer 3 isolation, making the network more flexible.

TRUE

FALSE

57. In the DU label distribution mode, if the Liberal retention mode is adopted, the device will retain all the labels distributed by the LDP Peer, regardless of whether the LDP Peer is the optimal next-hop to reach the target network segment.

TRUE

FALSE

58. As shown in the figure, a sham link is established between PE1 and PE2 through the LoopBackD interface. CE2 can learn the route to the 192.168.1.0/24 network segment (the direct route on CE1) through the sham link and backdoor link. If you keep the default configuration, the cost value of the route from CE2 to the 192.168.1.0/24 network segment should be (). (Please fill in the Arabic numerals directly, without symbols)

59. OSPFv2 is an IGP running on an IIPv4 network. OSPFV3 is an IGP running on an IPv6 network. Compared with OSPFv2, OSFv3 has similar LSA, but the function is slightly different. The following is the description of the LSA function of OSPFv3. Please drag the LSA to the correct LSA function column.

60. Which of the following role of Link-LSA in OSPFv3 not include?

Noon time to Tiandikou on other roads on the link-

Advertise the interface ID of this router to other routers on the link

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

Notify other routers on the link of the options set in the Network-LSA originating from this link

Page 7 of 9

61. 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

62. In BGPIMPLS IP VPN, if the 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 are from the same OSPF domain.

TRUE

FALSE

63. When troubleshooting the EBGP neighbor relationship, you found that two directly connected devices use Loopback ports to establish a connection, so execute display current-configuration configuration bgp to view the configuration of peer ebgp-max-hop hop-count. Which of the following statements is correct?

hop-count must be greater than 2

hop-count must be greater than 15

hop-count must be greater than 1

hop-count must be greater than 255

64. Is the routing protocol working properly?

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

TRUE

FALSE

66. As shown in the figure, a certain park has deployed IPv6 for service testing, and there are 4 routers in the network. Run OSPFv3 to realize network interconnection.

Regarding the LSA generated by the OSPFv3 network, which of the following statements is wrong?

R1 itself will generate Router-LSA to describe device interface information, and will receive Router-LSA generated by R2 and R3 at the same time

There is a Network LSA generated by R3 in the LSDB of R1, indicating that R3 may be the DR of this link

R1 will receive the two Link-LSAs generated by R2, describing the two links information connected to R2 respectively

As an ABR, R2 will generate Inter-Area-Prefix-LSA describing the IPv6 address prefix of Area 1, and advertise it to R1 and R3

67. MPLS has the concept of FEC forwarding equivalence class, so FEC cannot be allocated based on which of the following standards?

Class of Service

Fragment of fiset

Application Protocol

Destination Addess

68. IS-IS supports multi-instance and multi-process, that is, on an IS-IS router. You can configure multiple VPN instances to be associated with multiple IS-IS processes.

Which of the following descriptions about IS-IS multi-instance and multi-process are correct? (Multiple choice)

One IS-IS process can only be associated with one VPN instance

If an IS-IS router creates multiple IS-IS processes, each process does not affect each other and is independent of each other

One IS-IS process can be associated with multiple different VPN instances

A VPN instance can be associated with multiple different IS-IS processes

69. Which of the following regarding the configuration description is wrong?

If the DHCP request message received by the GigabitEthemnet0/0/1 interface does not contain the SutOption information of Option82, the device will generate Option82 and insert it into the message

Enabling the DHCP Snooping configuration can be used to prevent DHCP Server counterfeiters from attacking

Configure GigabitEthernet0/0/1 as a trusted interface

Enabling the DHCP Snooping configuration can be used to prevent ARP spoofing attacks

70. There is the concept of forwarding equivalent FEC in MPLS. Which of the following descriptions is wrong? (Multiple choice)

MPLS classifies packets with the same forwarding processing method into one category, which is called FEC

A forwarding equivalence FEC will be assigned a unique label value on all routers

The packets of the same FEC will be processed differently in the MPLS network

The division of FEC is very flexible. It can be based on any combination of source address, address, source port, destination port, protocol type or VPN, etc.

Page 8 of 9

71. 1.In order to speed up the perception of link failures in the IS-IS network, IS-IS can be linked with BFD.

TRUE

FALSE

72. In OSPF, ABR will convert all Type 7 LSAs in the NSSA area into Type 5 LSAs.

TRUE

FALSE

73. Which of the following statements about VLAN aggregation is correct? (Multiple choice)

Super-VLAN only contains physical interfaces and cannot establish a Layer 3 VLANIF interface

A Super-VLAN can contain one or more SUb-VLANs

Sub-VLAN contains physical interfaces. A three-layer VLANIF interface can be established

Sub-VLAN is used to isolate the broadcast domain

74. 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 on both ends are inconsistent

IP address conflict

Inconsistent interface authentication

The receiving and emitting power of both ends is inconsistent

75. R1 executes the operation ping -a 10.1.1.1 10.5.16.2, what does this command mean?

The source IP address of the ping packet is any directly connected port address of R1

The source IFP address of the ping packet is the outgoing interface address of the optimal IP route that R1 points to 10.5.16.2, and is not 10.1.1.1

The source IP address of the ping packet is 10.1.1.1

The destination IP address of the ping packet is 10.1.1.1 and 10.5.16.2

76. Which of the following information can the DHCP binding table contain? (Multiple choice)

Port and UDP port

MAC address

IP address

Lease time

77. According to this picture, what can we judge? (Multiple choice)

IS-IS IPv6 is not enabled on GE0/0/1 of R1

The IS-IS interface type of GE0/0/1 of R1 is Leve-1

The IS-IS interface type of the GE0/0/0 interface of R1 is Level-1-2

IS-IS IPv6 is enabled on GE0/0/0 of R1

78. In the intra-domain MPLS VPN network, when the data packet enters the public network and is forwarded, it will be encapsulated with two layers of MPLS labels. Which of the following description of the two layers of labels is wrong?

The outer label of MPLS VPN is allocated by the LDP protocol or statically, and the inner label is allocated by the MP-BGP neighbor at the correct end.

The outer label of MPLS VPNE is called the private network label, and the inner label is called the public network label.

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

The outer label is used to correctly send the data packet to the corresponding VPN on the PE device

79. Regarding the role of ping and tracert, which of the following statements is correct?

Ping detects the two-way reachability between the correct end and the one-way icmp echo request packet

Tracert must be able to trace every hop IP address from source to destination

Ping verifies the reachability from the local end to the opposite end, it does not mean that the opposite end is always reachable to the local end

Tracert has the same function as ping, but the name is different

80. Which of the following reasons may cause the hosts in the same VLAN of the LAN to fail to communicate? (Multiple choice)

Switch MAC address learning error

The interface is manually shut down or the physical interface is damaged

Wrong port and MAC address binding is configured on the switch

Port isolation is configured on the switch

Page 9 of 9

81. What types of Link Types are included in the Router LSA in OSPF? (Multiple choice)

Vlink

StubNet

TransNet

P-2-P

82. A park deployed IPv6 for business testing. There are 4 routers in the network, running OSPFV3 to realize the interconnection and intercommunication of IPv6 networks. As shown in the figure, an engineer checked the LSDB of R2 and intercepted one of the Link-LSAs. Regarding the description of the LSA, which of the following statements are correct? (Multiple choice)

The link-local address of the R2 interface GE0/0/0 is FE80::2E0; FCFF:FECD:4F79

The router that generated the LSA is R2

The LSA shows that R2 does not support external routing, but participates in IPv6 routing calculations

The IPv6 address prefix of the R2 interface GE0/0/0 is 2001:2343: 23: :/64

83. Which LSA in OSPFv3 can be flooded within an area?

Link-LSA

Inter-Area-Router-LSA

Inter-Area-Prefix-LSA

Intra-Area-Prefix-LSA

Huawei H12-831_V1.0 Questions and Answers

Huawei H12-831_V1.0 Questions and Answers

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