Huawei Huawei Certifications H11-861 Questions & Answers

• Question 81:

  A color bar test on the video endpoint checks whether the color of video output is normal or not. ( )

  A. TRUE

  B. FALSE

  Correct Answer: B

• Question 82:

  Wireshark captures packets over various interfaces, except WLAN ports. ( )

  A. TRUE

  B. FALSE

  Correct Answer: B

• Question 83:

  An MCU is an audio/video processing and forwarding device based on the H.323 protocol.( )

  A. TRUE

  B. FALSE

  Correct Answer: A

• Question 84:

  The advantages and disdvantages of Automatic Repeat request (ARQ) are Q. (Select 2 answers)

  A. it has high requirements for latency, which makes it difficult to use in live networks, it is effective only in slight packet loss. In addition, it results in more video jitter

  B. it occupies little bandwidth and slightly impacts the video quality

  C. The video quality is affected because the redundant data occupies some bandwidth. In addition, it cannot handle burst packet loss, and a certain delay is introduced

  D. it can restore the lost data with a certain probability and it is applicable to common packet loss scenarios

  Correct Answer: AB

• Question 85:

  The NLog is part of SMC, Huawei's conference management software. ( )

  A. TRUE

  B. FALSE

  Correct Answer: A

• Question 86:

  MSDA is Master Slave Determination Acknowledge (The carried Master or Slave flag refers to the status of the local endpoint.) ( )

  A. TRUE

  B. FALSE

  Correct Answer: B

• Question 87:

  The HD endpointssupport the ITU-T G.711, G.722, G.728, AAC-LD (mono-or binaural-audio channel), and HWA-LD audio protocols, showing a strong audio compatibility( )

  A. TRUE

  B. FALSE

  Correct Answer: A

• Question 88:

  Private and public network terminals are registered with a GK. A private network terminal has NAT disabled. If a public network terminal fails to call this private network terminal, what is the root cause?( )

  A. The public network terminal fails to obtain the RRQ information of the private network terminal.

  B. The public network terminal fails to locate the source port of the private network terminal.

  C. The destination address of a SETUP message is a private network address, because the address of the CS is specified in the RRQ message from a private network terminal and does not change after NAT.

  D. The callee CS address in the ACF message sent by the GK is incorrect.

  Correct Answer: C

• Question 89:

  Which message indicates that the request can not be fulfiied at any server. ( )

  A. 1xx

  B. 3xx

  C. 5xx

  D. 6xx

  Correct Answer: D

• Question 90:

  The functions of RTCP are( ). (Select 3 answers)

  A. QoS feedback

  B. Canonical end-point identifiers (CNAME)

  C. Sending of RTCP control packets to ail participants

  D. Transmit data from customer end

  Correct Answer: ABC