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Currently, the widely used video compression standards include H.263, H.264, H.265, MPEG-1, MPEG-2, and MPEG-4. The H.26X series standards are mainly used for real time video communication, and the MPEG series standards are mainly used for video storage (DVD), video broadcast, and video streaming media.
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Which of the following statements is true about image sampling?
Which of the following header fields is used to indicate the route of a response message?
Which of the following network elements can be utilized to centrally manage and control, remotely schedule shutdowns, and perform batch OTA upgrades for 10,000 IdeaHub ES2 Plus devices?
Assume that a dual-channel audio file uses the PCM encoding, the sampling frequency is 8 kHz, and each quantized sample value corresponds to an 8-bit binary code. What is the encoding rate (kbit/s) of the audio file?
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Generally, the bandwidth actually occupied by a video conference is greater than the conference bandwidth. What are the possible causes? (Choose all that apply.)
The VDC can be used with the Huawei video conferencing platform to provide rich conference control functions. Conference control settings can be customized, and conference control shortcut keys and descriptions can be set.
By default, a single registration SC server supports a maximum of 20,000 registered devices.
Assume that a channel of 4CIF analog TV signal uses a 48-bit color depth. Which of the following is nearest to the stream transmission speed of the signal before compression and encoding?
In the collaboration solution architecture, which of the following network elements are deployed at the media processing layer? (Choose all that apply.)
Which of the following is the maximum number of cascaded conference levels supported by the SMC?
Which of the following statements are true about the multi-level protection of the collaboration hardware platform? (Choose all that apply.)
Which of the following statements are true about personal virtual meeting room (VMR) provisioning?
SIP is an application-layer protocol independent of the transport-layer protocols. It can be carried over different transport protocols, such as UDP, TCP, TLS, and SCTP. Currently, SCTP is the most commonly used transport-layer protocol.
In the SIP protocol, the Via header field indicates the route of the subsequent response message.
Which of the following information is displayed when you run the CloudMCU debugging command “mswt-media allflow”?
In the encrypted conference scenario, the SIP transmission type must be set to TLS on both the MCU and endpoint.
Which of the following NEs’ information cannot be collected using the diagnostic information collection function (Maintenance > Diagnostic Info Collection) on the SMC web interface?
The MCU debugging command “mswt-media config_info” is used to query the configuration information about media exchange.
Which of the following conference parameters need to be obtained by engineers when locating conference faults on the SMC video conferencing system? (Choose all that apply.)
When the SMC is used to provision system administrator users, each user can be bound to an endpoint that is used as the conference joining device of the user.
