H11-861 Online Practice Questions and Answers

Applications typically run RTP on top of ( ). Each RTP packet is encapsulated into a ( ) data packet.

A. Physical layer

B. Data link layer

C. UDP

D. IP

During communication, both endpoints may occupy an event or resource that cannot be shared. To avoid this situation, a master endpoint needs to be determined. When conflicts occur, the standby endpoint should follow the master endpoint. ( )

A. TRUE

B. FALSE

Call abnormalities occur when non-compatible firewalls start the H.323 ALGs. ( )

A. TRUE

B. FALSE

The SIP works on the basis of messages which are the base units for the interaction between the SIP client and server( ).

A. TRUE

B. FALSE

In Multi-channel Cascading, the protocols of all multi-channel conference sites must be consistent, but bandwidths can be different. ( )

A. TRUE

B. FALSE

A pinhole path from the public to private networks is opened by RTP redirect messages. The pinhole is maintained by ( ).

A. Media stream from the terminal

B. Non-standard IRQ message

C. Subsequent RTP or RTCP traffic

D. Nothing

IVR provides an interactive method for joining or creating a conference. ( )

A. TRUE

B. FALSE

With static NAT, endpoints on private network have their SRC addresses ( ).

A. Unchanged

B. Translated to outbound NAT address

C. Translated to an available public IP address

D. Translated to the GK address

The RRQ message carrying registration information including the( )registers on the GK. (Select 3 answers)

A. IP address

B. MAC address

C. H.323ID

D. Port

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

A. TRUE

B. FALSE