H11-861 試験問題を無料オンラインアクセス

The network device connected to an MCU network port must be 100 Mbit/s half-duplex.()

• A.TRUE
• B.FALSE

Which of the following statements is not true about videoconferencing service in H.460.()

• A.A TCP channel is established by a private network terminal.
• B.After a call is established, keep-alive packets must be periodically transmitted to the maintain pinhole path.
• C.Call signaling between public and private network terminals complies with H.323.
• D.After the TCP channel is established, the private network terminal is directly connected to the public network terminal by sending "connect" message to each other.

With network-based recording, the audio and video output of any participants (an audio-only, HD, or telepresence participant) can be recorded. You can play back the recorded contents through the web. ( )

• A.TRUE
• B.FALSE

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

• A.Data link layer
• B.UDP
• C.Physical layer
• D.IP

An RTP packet consists of the fixed RTP header and the payload data, the first 12 bytes of the header are fixed and have fixed meaning. The payload can be audio or video data. ( )

• A.TRUE
• B.FALSE