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Huawei H12-821_V1.0 Exam Syllabus Topics:

Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:

1. On an OSPF network, OSPF routers exchange LSAs to synchronize their LSDBs. If an OSPF router receives an LSA that does not exist in its LSDB, it updates its LSDB and floods the LSA.

A) FALSE
B) TRUE

2. When a BGP device sends an Open message to establish a peer connection, which of the following information is carried?

A) NLRI
B) Hold time
C) Local AS number
D) Router ID

3. RSTP provides different functions in different scenarios. Which of the following statements Is false?

A) When the designated port enabled with root protection receives optimal RST BPDUs, the port enters the Discarding state and does not forward packets. If the port does not receive optimal RST BPDUs within a certain period of time, the port will automatically restore to the Forwarding state
B) If the edge port on the switch enabled with BPDU protection receives RST BPDU, the switch sets the edge port as a non-edge-port and triggers STP calculation
C) After TC-BPDU attack defense function is enabled, you can set the number of times the switch processes TC BPDUs within a certain period
D) The role of the designated port that is enabled with root protection cannot be changed

4. Compared with RSTP, which of the following port roles are added to MSTP?

A) Edge port
B) Backup port
C) Regional edge port
D) Master port

5. An enterprise uses OSPF to implement network communication. To ensure data validity and security, all authentication modes supported by OSPF are enabled on routers. In this case, interface authentication is preferentially used by the routers.

A) FALSE
B) TRUE

Solutions: