H11-851_V4.0

H11-851_V4.0 practice questions, page 2 of 2, with answer review and explanations.

Question 6

Which of the following messages are SIP requests? (Choose all that apply.)

  1. CANCEL
  2. REGISTER
  3. 3xx
  4. 2xx

Question 7

Which of the following statements is true about the functions of the RTP protocol?

  1. The RTP protocol is used for media negotiation during session establishment.
  2. The RTP protocol is utilized to initiate, adjust, and end sessions involving one or more participants.
  3. The RTP protocol is used to ensure real-time transmission of media streams.
  4. The RTP protocol is used to monitor media streams transmitted in real time.

Question 8

Which of the following statements are true about the MCU resource pool? (Choose all that apply.)

  1. The MCU resource pool backup is classified into intra-pool MCU backup and inter-pool MCU backup.
  2. The system administrator defines the MCU resource pool and can configure multiple MCUs to form a resource pool on the MCU web interface.
  3. If a single MCU in an area lacks sufficient resources, the two MCUs with the most resources in the area are cascaded first to hold a conference.
  4. The system matches the prefix of the service area number with the endpoint number to determine which MCU resource pool the endpoint should be connected to.

Question 9

What are the six request method of SIP message?

  1. INVITE, MESSAGE, CANCEL, BYE, REGISTER, OPTIONS
  2. INVITE, ACK, CANCEL, BYE, REGISTER, OPTIONS
  3. INVITE, ACK, CANCEL, BYE, REGISTER, UPDATE
  4. INVITE, ACK, CANCEL, BYE, REGISTER, MESSAGE

Question 10

The INVITE transaction involves a three-way handshake process, and if the request fails to return, the ACK belongs to a different transaction.

  1. TRUE
  2. FALSE