Huawei Huawei Certification H11-879 Questions & Answers

• Question 11:

  IAD supports configuration methods including (). (Multiple choice)

  A. Web

  B. LMT

  C. Command Line

  D. eSight

  Correct Answer: ACD

• Question 12:

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

  A. IP phone A has a network failure

  B. The SIP server information in the configuration of IP phone A is incorrectly configured.

  C. SIP account and password in IP phone A configuration are wrong

  D. The user ID and phone number of IP phone A configured in the U1900 system are inconsistent

  Correct Answer: D

• Question 13:

  Which of the following factors will affect the clarity of the image? ()

  A. Color space mode

  B. Noise reduction degree

  C. Contrast

  D. saturation

  Correct Answer: B

• Question 14:

  MCU adopts built-in web mode to manage and control, realize the function of () (multiple choice)

  A. Terminal registration

  B. Intelligent access to various types of terminals

  C. Meeting convened

  D. Conference control

  Correct Answer: ACD

• Question 15:

  Which of the following signaling is included in a SIP call? () (multiple choice)

  A. Invite

  B. 200 OK

  C. ACK

  D. Set UP

  Correct Answer: ABC

• Question 16:

  The POTS user number in the U1900 system is bound to the analog port, and has nothing to do with the analog phone connected to the analog port () Correct or Wrong

  A. Correct

  B. Wrong

  Correct Answer: A

• Question 17:

  SMC 2.0 + VP9650 MCU + TE50 terminal networking, manually configure the protocol and format of the conference template to H.264 720P 30F, but after convening the conference, it is found that all the conference sites have the protocol and format of H.264 4CIF. Is ().

  A. The ability of the main venue is set incorrectly, check whether the ability of the main venue reaches

  H.264 720P

  B. VP9650 MCU port configuration error is caused, check the VP9650 MCU port configuration

  C. SMC 2.0 did not import the license. Re-import a valid license.

  D. The account for scheduling conferences is not authorized enough. Use the admin account to log in and reschedule.

  Correct Answer: B

• Question 18:

  In the H.460 public and private network traversing dual SC networking, the communication between the terminal and Client GK follows the () protocol (Single choice)

  A. H.460

  B. H.323

  C. H.460.18/19

  D. Q.931

  Correct Answer: A

• Question 19:

  The SIP terminal sends an Invite request and enters the early dialog state after receiving a 180 response () Correct or Wrong

  A. Correct

  B. Wrong

  Correct Answer: A

• Question 20:

  H.264 encoding, the main reason for blocking is () (single choice)

  A. The macro block is in the intense motion area, the difference is big, resulting in obvious edges

  B. The quantization level of the coding block jumps, resulting in sudden brightness changes at the boundary

  C. Unreasonable division of macroblock coding modes, resulting in false edges

  D. Deblocking filter (Deblocking) is not strong enough, resulting in not smooth edges

  Correct Answer: B