Huawei H12-831_V1.0-ENU Real Exam Questions and Answers FREE
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NEW QUESTION 127
Which of the following tools cannot be used to match BGP routing entries?
- A. IP Prefix List
- B. Basic ACL
- C. Community Filter
- D. Advanced ACL
Answer: D
NEW QUESTION 128
According to this picture, we can judge:
- A. R1 has both leve1-1 and level-1-2 link state information
- B. In the leve1-2 network, there are a total of 8 routers
- C. The system ID of R1 is ee8c.a0c2.bafl
- D. R1 only has link state information for leve1-2
Answer: C
NEW QUESTION 129
The IS-IS neighbor between R3 and R1 is not established. According to the information in this figure, what is the possible cause?
- A. The lS-Level of R3 and R1 do not match
- B. The circuit-type of the interconnection interface between R3 and R1 does not match
- C. The IIH certification of R3 and R1 failed
- D. The System ID of R3 and R1 are duplicated
Answer: C
NEW QUESTION 130
Which of the following statements about MUX VLAN are correct? (Multiple choice)
- A. Principal VLAN can communicate with all VLANs in MUX VLAI
- B. Each Separate VLAN must be bound to a Principal VLAN
- C. Separate VLAN can communicate with all VLANs in MUX VLAN
- D. Each Group VLAN must be bound to a Principal VLAN
Answer: A,B,D
NEW QUESTION 131
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)
- A. After the TCP connection is established, the LSR does not continue to send Hello Message
- B. The destination IP address of the message is the multicast IP address 224.0.0.2
- C. This message is encapsulated in a UDP message, and the destination port number is 646
- D. The message is sent to the designated LDP Peer
Answer: B,C
NEW QUESTION 132
BGP4+ carries the next hop address of the IPv6 route through the Next Hop attribute in the Update message.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 133
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.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 134
What is the Router-ID of OSPFv3?
- A. 100-bit value
- B. 32-bit value
- C. 128-bit value
- D. 64-bit value
Answer: B
NEW QUESTION 135
When troubleshooting a network, if you need to confirm the business traffic path, which of the following tasks may be required? (Multiple choice)
- A. Investigate business meteor path planning in the network design stage
- B. Confirm that the network layer service flow is a path
- C. Confirm the data link layer service traffic path
Answer: B,C
NEW QUESTION 136
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)
Answer:
Explanation:
error
NEW QUESTION 137
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)
- A. The link-local address of the R2 interface GE0/0/0 is FE80::2E0; FCFF:FECD:4F79
- B. The LSA shows that R2 does not support external routing, but participates in IPv6 routing calculations
- C. The IPv6 address prefix of the R2 interface GE0/0/0 is 2001:2343: 23: :/64
- D. The router that generated the LSA is R2
Answer: A,C,D
NEW QUESTION 138
Because BGP is the EGP routing protocol, BGP routing policies can only be deployed between EBGP neighbors. Routing policies deployed between IBGP neighbors are invalid.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 139
What is the default aging time of the MAC address table of Huawei switches in seconds?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 140
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.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 141
As shown in the figure, all routers run OSPF.
Which of the following statements is correct?
- A. R2 forwards the Router LSA generated by R1 to R3
- B. R2 only generates Router LSA in area 0
- C. R2 generates Router LSA in both area 1 and area 0
- D. R2 forwards the Router LSA generated by R3 to R1
Answer: C
NEW QUESTION 142
Regarding the cause of the dual-master failure of the VRRP backup group, which of the following is the most unlikely?
- A. The low-priority VRRP backup group discards the received VRRP notification packets as illegal packets
- B. Master device sends 1 notification message per second
- C. The link that transmits the VRRP notification message is faulty
- D. The VRRP backup group IDs on both ends are different
Answer: B
NEW QUESTION 143
What is the meaning of the display current-configuration I include vlan command?
- A. View the IP address of the VLANIF interface
- B. View the physical interface information bound to each VLAN
- C. Check which VLANs are currently created
- D. View all configurations that contain the "VLAN" keyword
Answer: D
NEW QUESTION 144
After the cutover is completed, which items generally need to be checked? (Multiple choice)
- A. Control plane entries
- B. Software version
- C. Physical topology
- D. Data flow
Answer: A,D
NEW QUESTION 145
In order to publish IPv6 routes in BGP4+, what fields are added in Update?
- A. A new NLRI type, IPv6_NLR, which carries IPv6 NLRl prefix length and IPv6 NLRl prefix
- B. A new path attribute: MP_REACH_NLRI
- C. A new path attribute: MP_UNREACH_NLRl
- D. A new path attribute: IPv6_REACH_NLRI
Answer: B
NEW QUESTION 146
A park deployed IPv6 for business testing. There are 4 routers (R1, 22, R3 and R4) in this network, running OSPFv3 to realize the interconnection of IPv6 network. There is a new router R5 that needs to be connected to the network for testing. An engineer introduced a direct route in the OSPFvV3 process of R4 to realize that the devices in the campus network can access the GE0/0/1 port address of R5. Which of the following descriptions of the scene are correct? (Multiple choice)
- A. R2 will generate a Type4 LSA describing the Router ID of R4
- B. R4 will generate an IPv6 routing prefix introduced by Type5 LSA description
- C. R4 will generate a Type5 LSA and only flood in Area 1
- D. R2 will generate a Type4 LSA and only flood in Area 0
Answer: A,B,D
NEW QUESTION 147
After executing reset isis all, the IS-Is protocol process needs to be restarted and neighbors need to be re-established, and various IS-IS statistics will not be cleared.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 148
According to this picture, what can we judge? (Multiple choice)
- A. The IS-IS interface type of GE0/0/1 of R1 is Leve-1
- B. The IS-IS interface type of the GE0/0/0 interface of R1 is Level-1-2
- C. IS-IS IPv6 is not enabled on GE0/0/1 of R1
- D. IS-IS IPv6 is enabled on GE0/0/0 of R1
Answer: B,D
NEW QUESTION 149
Which of the following functions will affect BGP neighbor establishment? (Multiple choice)
- A. BGP route filtering
- B. BGP authentication
- C. ebgp max hop
- D. BGP GSTM
Answer: B,C,D
NEW QUESTION 150
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?
- A. If negative arbitration sharing is configured, the traffic will be evenly distributed to each link
- B. 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
- C. 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
- D. 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.
Answer: D
NEW QUESTION 151
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