H11-879 Exam Training Practice Tests (Huawei HCIE-Enterprise Communication (Written) V1.0)]

Question 1

After the terminal initiates a call and sends an ARQ message to GK, it receives an ARJ message. The possible reason for the call rejection is () (multiple choice)

A. called busy B. The called is offline C. Insufficient call bandwidth D. The called party refuses to answer

Correct Answer: B,C

Question 2

In the U1900+SC solution, if you need to restrict the video conferencing system's permission to call out PSTN phones through U1900, which statement is correct () (multiple choice)

A. If the video conferencing system needs the permission to call international long distance through the U1900 system, it can be modified by modifying the SIP trunk related trunkgroup calling permission between U1900 and SC. B. By default, when the video conference system uses the U1900 system to make a voice call, Permission to make intra-office/local calls C. By default, when the video conference system uses the U1900 system to make voice calls, it has the right to call intra-office/local/domestic long-distance calls D. If the video conference system needs the permission to call international long distance through the U1900 system, it can be modified in U1900 by modifying the access code prefix permission of the video conference system

Correct Answer: A,B

Question 3

The U1900 system is connected to the PSTN through a digital trunk. In U1900, phone A cannot call user B's On mobile phone, user B can call back phone A normally. Which of the following reasons may cause this failure? () (single choice)

A. Phone A has been added to the system's blacklist of called parties B. Phone A is not registered properly. C. Phone A outbound call permission restriction D. The digital trunk connection between U1900 and PSTN is faulty.

Correct Answer: C

Question 4

The AR router provides SIP signaling tracking function, which needs to be checked in the diagnostic view. () Correct or Wrong

A. Wrong B. Correct

Correct Answer: B

Question 5

If IP phone A fails to register with U1900, which of the following situations will not be the cause of the registration failure? ()

A. SIP account and password in IP phone A configuration are wrong B. IP phone A has a network failure C. The SIP server information in the configuration of IP phone A is incorrectly configured. D. The user ID and phone number of IP phone A configured in the U1900 system are inconsistent

Correct Answer: D

Question 6

In the H.460 public and private network traversal single SC network, the H.245 TCP connection of the private network terminal is established with the TS (traversal server). () Correct or Wrong

A. Wrong B. Correct

Correct Answer: B

Question 7

In the SMC2.0 service area configuration, each service area can only be configured with one server prefix. () Right or Wrong

A. Right B. Wrong

Correct Answer: B

Huawei HCIE-Enterprise Communication (Written) V1.0 - H11-879 Exam Practice Test