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Huawei H12-821_V1.0 Exam Syllabus Topics:

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

1. Which of the following is the default dead time of an interface on an OSPF P2P or broadcast network?

A) 60s
B) 120s
C) 40s
D) 10s

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

A) After TC-BPDU attack defense function is enabled, you can set the number of times the switch processes TC BPDUs within a certain period
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) The role of the designated port that is enabled with root protection cannot be changed
D) 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

3. SSH is a secure protocol that establishes tunnels for users on insecure networks. Which of the following statements is false about SSH login?

A) By default, the port number of the SSH server is 23. You can change the port number of the SSH server to a non-well-known port number to reduce the probability of being scanned and attacked.
B) When the SSH server function is enabled on a device, the socket obtaining service is also enabled on the device. This makes the device prone to scanning by attackers. As such, the SSH server function and the corresponding port can be disabled when the SSH server function is not required.
C) The SSH server supports authentication. Only users who have passed authentication can log in to the device.
D) An ACL rule can be configured for each VTY channel to control the IP addresses of clients that are allowed to log in to the device.

4. In BGP, Notification messages are used to request peers to resend routing information after routing policies are changed.

A) FALSE
B) TRUE

5. Which of the following LSAs are advertised only within a single area?

A) Summary LSA
B) Network LSA
C) Router LSA
D) AS External LSA

Solutions: