HCIP-Datacom-Advanced Routing & Switching Technology H12-831_V1.0 Dumps

dumps2021-11-29T08:01:51+08:00

H12-831_V1.0 exam is a related test for HCIP-Datacom-Advanced Routing & Switching Technology certification. In real Huawei H12-831_V1.0 exam, there are 60 questions, and you have 90 minutes to complete all the questions. The exam format is Single-answer Qusetion, Multiple-answer Question, True or false, Short Response Item, Drag and Drop Item. Our online Huawei H12-831_V1.0 dumps are helpful in your preparation. Free Huawei H12-831_V1.0 dumps are available below.

Page 1 of 9

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

TRUE

FALSE

2. Network administrator A wants to use AS-Path Fiter to match routing entries with the BGP routing attribute AS_PATH [100 200 300]. Network administrator A sorts out the four configurations in the figure. Which of the following configurations can satisfy the network administrator A's requirement? (Multiple choice)

Method C

Method A

Method D

Method B

3. To ensure security, authentication can be configured in the OSPFv3 process area view.

TRUE

FALSE

4. Traditional BGP-4 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

5. In order to prevent hackers from attacking user equipment or network through MAC address, the MAC address of untrusted users can be configured as black hole MAC address to filter out illegal MAC

TRUE

FALSE

6. 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. Regarding the description of the two layers of labels, which of the following options 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 singled out 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

7. 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

8. An enterprise purchased the leased lines of two operators. In order to optimize the route, the enterprise used the 6GP protocol to learn routing entries of the two operators. However, the company found that after such a configuration, the traffic of the export routing increased greatly. After the network engineering investigation, it was found that the traffic of the two operators was passed to each other through the company's export router.

Therefore, the company intends to use routing strategies to prevent the traffic between different operators from passing each other. Is the configuration in the figure correct?

TRUE

FALSE

9. Regarding the BGPI MPLS IPVPN network architecture, which of the following descriptions is wrong?

The P device only needs to have basic MPLS forwarding capabilities and does not maintain VPN related information

Sites can visit each other through VPN, and a site can only belong to 1 VPN

Under normal circumstances, CE equipment does not perceive the existence of VPN, and CE equipment does not need to support MPLS, MP-BGP, etc.

The BGP/MPLS IP VPN network architecture consists of three parts: CE (Customer Edge), PE (ProviderEdge), and P (Provider). PE and P are operator equipment, and CE is BGP/MPLS IPVPN user equipment.

10. As shown in the figure, the cost value of the link that all interfaces of the router enable DSPF is identified in the figure.

The Loopback D interface of R2 is advertised in area 1. Then the cost value of R1 to 10.2/32 is:

200

150

100

Page 2 of 9

11. In an MPLS VPN network, data packets are forwarded when they enter the public network. Will be encapsulated with two layers of MPLS labels. Which of the following description is correct about the processing of the data packet? (Multiple choice)

The packet is forwarded to the Egress PE device after the outer label pops up on the penultimate hop device

The Egress PE device correctly sends the data packet to the corresponding VPN according to the inner label

The outer label of the packet received by the penultimate hop device is 3

The Egress PE device receives untagged IP packets

12. When there are multiple redundant links in the IS-S network, multiple equal-cost routes may appear.

Regarding equal-cost routes in an IS-IS network, which of the following descriptions is wrong?

When the number of equal-cost routes in the networking is greater than the number configured through commands, and the priorities of these routes are the same, the route with the higher System ID of the next hop device is preferred for load sharing

If negative arbitration sharing is configured, the traffic will be evenly distributed to each link

After the equal-cost routing priority is configured, when the IS-IS device forwards the traffic that reaches the destination network segment, it will not adopt the load sharing method, but will forward the traffic to the next-hop with the highest priority.

For each route in the equal-cost route, the priority can be specified, and the route with the higher priority will be preferred. The rest are used as backup routes

13. Configuring DHCP Snooping can be used to prevent imitators from attacking. Which of the following steps should be included in the configuration process? (Multiple choice)

Enable the global DHCP Snooping function

Enable global DHCP function

Configure interface trust status

Enable DHCP Snooping on the interface or VLAN

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

Unknown unicast

Known unicast

Multicast

Broadcast

15. In the process of daily troubleshooting, engineers may need to check some alarm information of the device. Turn on the debugging/log/alarm information sent by the terminal display information center by executing the terminal () command. (Please use English lowercase letters to complete the command, and the command cannot be abbreviated)

16. 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

17. 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

18. A network engineer outputs the following information when troubleshooting OSPF. Based on this, determine which reason causes the adjacency relationship to fail to be established normally?

Authentication password is not-consistent

Regional type is not-consistent

The interval for sending Hello messages is not-consistent

The IP address mask of the interface is not-consistent

19. 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

20. 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

Page 3 of 9

21. If you are faced with a complex network failure, and after evaluation, it is considered that the troubleshooting cannot be completed in a short time, and at this time the user urgently needs to restore the availability of the network, then which is the correct approach?

Tell users that this is impossible

Directly build an alternative network environment without notifying the customer

Always try to troubleshoot, and do not inform users of the current difficulty of troubleshooting

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

22. Is the routing protocol working properly?

23. 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

24. In the test phase of cutover, which standards that can indicate the test has been completed?

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

Test network business as normal as the standard

The upper-layer application service test carried by the network is normal as the standard

Check that the network is running normally as a standard

25. Which description is correct about the MPLS forwarding mechanism? (Multiple choice)

The system automatically assigns an ID to the upper-layer application that uses the tunnel, also known as Tunnel ID

When an IP packet enters the MRLS domain, the FIB table is the first to be checked

If the Tunnel ID value is not 0x0, enter the normal IP forwarding process

If the Tunnel ID value is 0x0, enter the MPLS forwarding process

26. Which of the following regular expressions can only match BGP routing entries that pass through AS200 and then AS300?

200$|300$

^200|^300

_(200 300)_

_[200 300]_

27. In the LDP session establishment process, the active party will first send the lnitialization information for parameter negotiation, and if the passive party does not accept the negotiation parameters, it will send _____ .

Keepalive Message

Initialization Message

Hello Message

Error Notification Message

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

Port and UDP port

MAC address

IP address

Lease time

29. Compared with the OSPFv2 message header, what fields are added in the OSPFv3 message header?

IPV6 Auth Type

Link ID

Instance ID

IPV6 Router ID

30. Which of the following aspects should be considered in the cutover risk assessment? (Multiple choice)

Loss caused by risk

Scope of risk impact

Time of risk impact

Location of key risk points

Page 4 of 9

31. 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

32. The OSPF protocol runs between CE and PE, when CE1 advertises the route of the site to CE2. Which of the following description is wrong?

When PE2 receives a BGP route from PE1 that carries a different Domain ID from the local one, it is correct for all LSAs, and PE2 will generate Type5 LSA or Type7 LSA

When PE2 receives the same Domain ID as the local BGP route sent by PE1, PE2 will generate Type3 LSA for Type1 LSA and Type2 LSA

When PE2 receives the same Domain ID as the local BGP route sent by PE1, for Type3 LSA, PE2 will generate Type5 LSA

The Domain ID configured by PE1 can be used as an extended community attribute of BGP and sent along with the route to PE2.

33. 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

Notication

Keepalive

34. Which of the following are the advantages of VLAN aggregation? (Multiple choice)

Reduce the waste of IP addresses

Increased the number of available MLANs

Increased flexibility of addressing

Realize the isolation of broadcast domains between Sub-VLANs

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

dir sdl:

dir sd0:

display patch-information

dir flash:

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

TRUE

FALSE

37. In an MPLS domain, LSR can be divided into Ingress LSR, Transit LSR and Egress LSR according to the way the LSR processes data. For the same FEC, a certain LSR can be the Ingress LSR of the FEC or the Transit LSR of the FEC.

TRUE

FALSE

38. Ethernet is a network that supports broadcasting. Once there is a loop in the network, this simple broadcasting mechanism will cause catastrophic consequences.

Which of the following phenomena may be caused by loops? (Multiple choice)

CPU usage exceeds 70%

The device cannot log in remotely

When you use the display interface command to view interface statistics on the device, it is found that the interface receives a large number of broadcast packets

Severe packet loss during network testing through the ping command

39. Regarding the cause of the dual-master failure of the VRRP backup group, which of the following is the most unlikely?

The link that transmits the VRRP notification message is faulty

The low-priority VRRP backup group discards the received VRRP notification packets as illegal packets

The VRRP backup group IDs on both ends are different

Master device sends 1 notification message per second

40. IGP converges faster than BGP, which may cause network traffic loss. By enabling the OSPF and BGP linkage feature of the device, the device remains as a () router within the set linkage time, so that the link metric value in the advertised LSA is the maximum value, thereby telling other OSPF devices not to use this router to forward data, so as to avoid the loss of traffic. (Note: If English letters are involved, all capitals are required)

Page 5 of 9

41. Which of the following statements about the OSPFv3 message format is correct? (Multiple choice)

Hello message no longer contains address information and Interface ID

OSPF version number changed from 2 to 3

Removed Authentication and Auth Type fields

There is no change in the option field of the Hello message

42. OSFFv2 is an IGP running on an IPv4 network: OSPFV3 is an IGP running on an IPv6 network. Compared with OSPFv2, SPFV3 has a similar LSA type, but the function is slightly different. Which of the following is not included in the LSA type of OSPFv3?

AS-External-LSA

Router-LSA

ASBR-Summary-LSA

Network-LSA

43. Which of the following are the advantages of VLAN aggregation? (Multiple choice)

Reduce the waste of IP addresses

Increased the number of available MLANs

Increased flexibility of addressing

Realize the isolation of broadcast domains between Sub-VLANs

44. What is the command to adjust the link cost value of an IS-IS interface?

isis cost

isis timer hello

isis circuit-level

isis circuit-type

45. Which of the following functions will affect BGP neighbor establishment? (Multiple choice)

BGP authentication

BGP GSTM

BGP route filtering

ebgp max hop

46. As shown in the figure, all interfaces of the router enable OSPF. The IP address identified in the figure is the IP address of the oopback0 interface of the device. Loopback0 of R1 and R2 is advertised in area 1, Loopback0 of R4 is advertised in area 0, and Loopback0 of R3 and R5E are advertised in area 2, which of the following IP addresses can ping each other? (Multiple choice)

10.0.2.2 and 10.0.3.3. (Not counted when receiving Category 3 in non-backbone areas)

10.0.3.3 and 10.0.5.5 (Class 1 in the same area)

10.0.4.4 and 10.0.2.2. (3 types of normal calculation)

10.0.2.2 and 10.0.5.5 (not counted when receiving Category 3 in non-backbone areas)

47. 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

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

The device type of R1 is Level-2

The device type of R1 cannot be determined

The device type of R1 is Leve1-1

The device type of R1 is Level-1-2

49. An engineer uses two routers to test IPv6 services, and simulates the interconnection between the headquarters and branches by running BGP4+. As shown in the figure, an engineer captures the packet to view the update message sent by R1.

Regarding the description of the message information, which of the following statements is correct?

The next-hop address of the route described in this message is: 2001:db8::2345:1.:1

The message describes the currently revoked IPv6 route

The routing address prefix and its prefix length described in this message are: 2001:db8:2345:1::1/128/

The route described in the message may be imported through import

50. The link state value information between different ISIS processes of multiple routers is considered to be isolated.

TRUE

FALSE

Page 6 of 9

51. What are the work that needs to be performed in the closing phase after the cutover acceptance is completed? (Multiple choice)

Transition training

Data transfer

Acceptance summary

On-site defense

52. Part of the configuration of R1 is as follows, which of the following statement about OSPF on R1 is correct? (Multiple choice)

The routing information of VRF tt will appear in the routing table of OSPF process 1

The OSPF LSD8 of process 1 and process 2 have different LSAs in the area

The OSPF LSDBs of process 1 and process 2 have exactly the same LSA in area 0

The routing information of VRF tt will not appear in the routing table of OSPF process 1

53. 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

54. The routing policy tools that BGP can use mainly include Filterpolicy and Route-policy. Its Fiterpolicy can only filter routes, and Rote-policy can only modify routes.

TRUE

FALSE

55. When troubleshooting a network, if you need to confirm the business traffic path, which of the following tasks may be required? (Multiple choice)

Confirm that the network layer service flow is a path

Investigate business meteor path planning in the network design stage

Confirm the data link layer service traffic path

56. BGP4+ carries the next hop address of the IPv6 route through the Next Hop attribute in the Update message.

TRUE

FALSE

57. 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

58. How to view log information? (Multiple choice)

View the interface of the network management system

There is no way

Transfer the log file under flash:/logfile/ to the PC via FIP/TFTP

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

100

1000

10000

1001

60. Configuring DHCP Snooping can be used to prevent imitators from attacking. Which of the following steps should be included in the configuration process? (Multiple choice)

Enable the global DHCP Snooping function

Enable global DHCP function

Configure interface trust status

Enable DHCP Snooping on the interface or VLAN

Page 7 of 9

61. 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

62. In an MPLS network, there are different types of operations for labels, among which the meaning of the "pop" action is?

Replace the top label with another value

Add the top label to the MPLS label stack

Replace the top label with another set of labels

Remove the top label from the MPLS label stack

63. 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

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

R1's GE0/0/1 must have Leve1-2 capability

R1's GE0/0/0 must have the Leve1-2 capability

There must be an LSDB of Leve1-2 on R1

R1 has 2 IS-IS neighbors

65. Regarding the description of the MPLS forwarding mechanism, which of the following is correct? (Multiple choice)

The system automatically assigns an ID to the upper-layer application that uses the tunnel, also known as Tunnel ID

When an IP packet enters the MRLS domain, the FIB table is the first to be checked

If the Tunnel ID value is not 0x0, and then enter the normal IP forwarding process

If the Tunnel ID value is 0x0, and then enter the MPLS forwarding process

66. OSPFv2 is an IGP running on an IPv4 network, OSPFvV3 is an ICP running on an IPv6 network. OSPFv3 and OSPFv2 have the same message types, including Hallo messages, DD messages, LSU messages, LSU messages and SACK messages.

Regarding OSPFv3 packets, which of the following statements is correct?

OSPFv3 uses the authentication field in the header of the message to complete message authentication

OSPFv3 uses the link-local address as the source address of the sent message, and the message can be forwarded outside the range of the originating link

OSPFv3 uses IPv6 multicast addresses FFO2::5 and FFO2:.6 to send OSPFv3 packets

The He11o packet of OSPFv3 carries the IPv6 address prefix list of the router interface

67. Network administrator A wants to check the neighbor status of BGP router R2. R2's BGP neighbor status information is shown in the figure. Please help network administrator A to obtain the following information: The AS where R2 is located is AS (). (Note: Only write numbers, do not add punctuation or spaces)

68. When troubleshooting a network, if you need to confirm the business traffic path, which of the following tasks may be required? (Multiple choice)

Confirm the network layer business traffic path

Investigate business traffic path planning in the network design stage

Confirm the data link layer service traffic path

69. 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

70. Regarding MP-BGP, whici of the following description is incorrect?

When the PE and CE exchange routes through BGP, you need to create a BGP process for each VPN instance on the CE

MP-BGP's message type and VPNv4 routing policy are the same as BGP-4

MP-BGP needs to assign private network labels to VPNv4 routes

MP-BGP advertises VPNv4 routes through two attributes: MP_REACH_NLRI and MP_UREACH_NLRI

Page 8 of 9

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

TRUE

FALSE

72. 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

73. Regarding BGP/MPLS IPVPN routing interaction, which of the following description 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 will convert the IPv4 route received from the CE into a VPNv4 route, and save it according to different VPN instances

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

The ping sends Y ICMP requests

The ICMP request of this 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

75. After a fault occurs, it is necessary to collect and backup various fault information in time as a reference for handling the fault. In addition, when seeking emergency help from Huawei Technologies Co., Ltd., you need to provide the fault information to Huawei Technologies Co., Ltd. technical support personnel to facilitate their location and troubleshooting.

76. Regarding the MPLS forwarding process, which description of the 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 LFlB 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

77. A router Network LSA is shown in the figure. Which of the following statements is correct? (Multiple choice)

The DR priority of the router is 100

The Router ID of this router is 10.0.12.2

The network segment where the router is located is 10.0.12.0 24

This router is DR

78. After the cutover is completed, which items generally need to be checked? (Multiple choice)

Software version

Physical topology

Data flow

Control plane entries

79. After the cutover is completed, which items generally need to be checked? (Multiple choice)

Software version

Physical topology

Data flow

Control plane entries

80. 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

Page 9 of 9

81. 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

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

View the physical interface information bound to each VLAN

Check which VLANs are currently created

View the IP address of the VLANIF interface

View all configurations that contain the "VLAN" keyword

83. As shown in the figure, the cost value of the link that all interfaces of the router enable OSPF is identified in the figure. Loogback0 interfect of R2 is advertised in area 0. In area 1, both R2 and R3 will be transmitted in the form of Typae3 LSA 10.0.2.2/32 routing information.

TRUE

FALSE

84. 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.

85. 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

HCIP-Datacom-Advanced Routing & Switching Technology H12-831_V1.0 Dumps

HCIP-Datacom-Advanced Routing & Switching Technology H12-831_V1.0 Dumps

Share this post

Leave a Reply Cancel reply

Related Posts