H11-861 Online Practice Questions and Answers
NAT works at the ( ).
A. Data link layer
B. Network layer
C. Application layer
D. Transport layer
The Content header field contains the attributes of message bodies/'Content-Length" specifies the length of the message body, which is optional for the TCP packets and mandatory for UDP packets. ( )
A. TRUE
B. FALSE
A video terminal on a private network (video terminal A) uses the IP address 10.1.0.10, the static NAT outbound address is 61.1.0.10, and the GK IP address is 61.1.0.11. A video terminal on a public network (video terminal B) uses the IP address 61.1.0.12. Video terminal B can dial ( ) to call video terminal A.
A. 10.1.0.10
B. 61.1.0.10
C. 61.1.0.11
D. 61.1.0.12
SIP protocol used to establish, manage, and release sessions.( )
A. TRUE
B. FALSE
The methods for scheduling a conference that supports recording include ( ). (Select 3 answers)
A. Using the video phone
B. Using the SMC
C. Using the video terminal web interface
D. Using the telepresence system touch panel
In any view mode, a site can view the video of any other sites. ( )
A. TRUE
B. FALSE
For Response Messages, 3XX meansO-
A. Indicates that the request is received and under processing
B. Indicates that the response is received and successfully processes.
C. Indicates that further operations are required to complete this request.
D. Indicates that the server is faulty and consequently cannot process correct messages.
For the following technologies used for traversal between public and private networks, no additional network device is required. ( ) (Select 2 answers)
A. H.460
B. ALG
C. Static NAT
D. SNP
1080p and 720p 50/60 fps: Progressively scan an image at the rate or 60 frames per second. ( )
A. TRUE
B. FALSE
ARQ is Similar to the TCP retransmission mechanism, when the network detects UDP packet loss in video stream, it requires the peer to resend UDP stream. The receiver uses a buffer to store code stream, and starts decoding after receiving the retransmitted UDP stream. ( )
A. TRUE
B. FALSE