Huawei HCIP-Datacom-Core Technology V1.0 - H12-821

QUESTION NO: 1
Which of the following fields are included in the OSPF Hello packet? (Multiple choice)

A. Router ID of DR and BDR B. The MAC address of the originating router interface C. Hello interval of the originating router interface D. Originating router interface authentication type and authentication information E. Router ID of the originating router F. Area ID of the originating router interface

Correct Answer: B,C,D,E,F

QUESTION NO: 2
Similar to the OSPF DR, the IS-IS DIS needs to be elected on a broadcast network. However, the OSPF DR is preemptive by default, whereas the IS-IS DIS is not preemptive by default.

A. FALSE B. TRUE

Correct Answer: B

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QUESTION NO: 3
The neighbor information of the router RTA is as shown in the figure.

Which of the following descriptions of the OSPF neighbor information is wrong?

A. The address of DR is 10.1.1.1 B. The Router ID of this router is 1.1.1.1 C. The router is the Master D. The neighbor's Router ID is 2.2.2.2

Correct Answer: C

QUESTION NO: 4
All routers in a network run IS-IS and are all in Area 49.0001. The LSDB of R1 is as shown in the figure. Based on this, the Level of the four routers can be determined.

Correct Answer:

QUESTION NO: 5
Which of the following functions can the Type-2 routing type of EVPN support? (Multiple choice)

A. Notification of ESI labels B. Batch revocation of MAC addresses C. MAC address learning notice D. MAC/IP binding

Correct Answer: C,D

QUESTION NO: 6
Which description of the LACP protocol is correct? (Multiple choice)

A. Exchange information with the peer through LACPDU (Link Aggregation Control Protocol Data Unit) B. The devices at both ends determine the active interface according to the LACP priority and interface ID of the passive interface C. Based on IEEE802.3au standard. D. The devices at both ends determine the active end according to the system LACP priority and system

Correct Answer: A,D

QUESTION NO: 7
The interface using Silent-Interface will not receive and send OSPF messages, but directly connected routes can be advertised to OSPF.

A. FALSE B. TRUE

Correct Answer: B

QUESTION NO: 8
When the Error Code of the BGP Notification message is 2, it means that the OPEN message is wrong.
Which of the following error subcodes are contained in it? (Multiple choice)

A. 1 - Unsupported version number B. 4 - Incorrect property list C. 2 - Incorrect peer AS number D. 3- Wrong BCP Router ID

Correct Answer: A,C,D

QUESTION NO: 9
As shown in the figure, the ISIS neighbor relationship between R1 and R2 has just been established, and the database synchronization process between R1 and R2 is correct?

A. The packet sent by R1 to R2 is an LSP packet. B. The packet sent by R1 to R2 is a PSNP packet. C. The packet sent by R1 to R2 is a Hello packet. D. The packet sent by R1 to R2 is a CSNP packet.

Correct Answer: D

QUESTION NO: 10
BFD detection packets are carried on which of the following types of headers?

A. MAC header B. IP header C. TCP header D. UDP header

Correct Answer: D

QUESTION NO: 11
During the process of BGP establishing a neighbor, if the TCP connection fails in the Active state, BGP will return to the idle state and retry the TCP connection.

A. FALSE B. TRUE

Correct Answer: A

QUESTION NO: 12
The four routers run IS-IS and have established adjacency. The area numbers and router levels are marked in the figure. The link between R1 and R2 is a PPP link, and R2 is DIS.

Which of the following statements is correct? (Multiple choice)

A. If R1 sends an LSP message, R2 needs to send PSNP for confirmation B. R2 sends the LSP to R3 and R4 in unicast mode C. R3 periodically sends CSNP to help achieve Level-2 LSDB synchronization

Correct Answer: A,C

Huawei HCIP-Datacom-Core Technology V1.0 - H12-821_V1.0 Exam Questions