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Huawei H12-891_V1.0 Exam Syllabus Topics:

Huawei HCIE-Datacom V1.0 Sample Questions:

1. Which of the following are application optimization functions in the Huawei SD-WAN Solution?

A) WAN optimization
B) Intelligent traffic steering
C) QoS
D) Application identification

2. Which of the following statements about the SP scheduling algorithm is incorrect?

A) If the SP scheduling algorithm is used and a high-priority queue occupies a large amount of bandwidth, the low-priority queue may be starved.
B) When the SP scheduling algorithm is used to schedule multiple low-priority queues, the data packets that enter the queue first are forwarded first.
C) The SP scheduling algorithm preferentially schedules high-priority queues.
D) To ensure the quality of key services, the SP algorithm can be used to schedule services and set the minimum bandwidth.

3. Port isolation can be deployed on an Ethernet network to implement both Layer 2 communication and Layer 3 isolation, making the networking more flexible.

A) FALSE
B) TRUE

4. K company has two types of network services: UDP-based real-time video streaming services and TCP-based FTP download services. The company's network administrator often receives complaints that the FTP download speed is slow or unstable. What are the possible causes?

A) The device uses the tail drop technology. As a result, global TCP synchronization affects the FTP rate.
B) The device performs PQ scheduling for FTP services and WFQ scheduling for video services. As a result, the FTP service bandwidth is preempted.
C) The video service has a higher priority and preempts the bandwidth of the FTP service.
D) The device limits the FTP traffic rate to a small value.

5. Which of the following statements are correct about the authentication protocols used in Portal authentication?

A) When HTTP or HTTPS is used as the authentication protocol, the client needs to send authentication information to the access device, which then sends the information to the authentication server for identity authentication.
B) When Portal is used as the authentication protocol, the Portal server needs to exchange authentication information with the access device, which then sends the information to the authentication server for identity authentication.
C) When HTTP or HTTPS is used as the authentication protocol, none of the devices involved in the authentication process need to support the Portal protocol.
D) When Portal is used as the authentication protocol, the Portal server and access device only need to support the Portal protocol, but not the HTTP and HTTPS protocols.

Solutions: