Huawei H11-879_V2.0-ENU 問題練習

Question No : 1
The SR message in RTCP is a transmission report, which is used to send and receive statistical data from the sending gateway.

• A.TRUE
• B.FALSE

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正解:

Question No : 2
Which of the following SIP message transactions has a three-way handshake mechanism?

• A.Message
• B.Info
• C.Refer
• D.Invite

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正解:

Question No : 3
During an H.323 call, RIP/RICP messages are transmitted only after the logical channel is opened.

• A.TRUE
• B.FALSE

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正解:

Question No : 4
The main functions of RTP VOLP include: real-time transmission of media information, jitter elimination, sequencing, packet loss prevention, and in certain situations, transmission of ODF signals, tones, and signaling.

• A.TRUE
• B.FALSE

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正解:

Question No : 5
The screen size of an ultra-high-definition TV is 98 inches and the resolution is 3840*2160. The PPI of this TV screen is _____. (Please fill in the integer and round off the decimals)

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正解: 42

Question No : 6
If the remote site wants to hear the audio from the local site , the audio signal needs to undergo a series of processing. Which of the following is the correct audio signal processing process?

• A.Analog signal acquisition -> transmission -> encoding and compression -> decoding -> playback
• B.Analog signal acquisition -> encoding compression -> decoding -> transmission -> playback
• C.Analog signal acquisition -> decoding -> transmission -> encoding compression -> playback
• D.Analog signal acquisition -> encoding compression -> transmission -> decoding -> playback

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正解:

Question No : 7
All other factors being equal, the longer the room's reverberation time, the clearer the sound. Reverberation can also be increased using a microphone array.

• A.TRUE
• B.FALSE

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正解:

Question No : 8
A user logs in to a Huawei video conferencing endpoint and sees that the site currently supports G.711, G.728, and ACC-LD audio protocols. If the endpoint wants to establish an audio call with a remote site, which of the following descriptions of the remote site's audio protocol capability set are correct? (Multiple choice)

• A.If the remote site only supports
• B.722,
• C.728, and
• D.719 audio protocols, it cannot establish an audio call with the local site.
• E.If the remote site only supports
• F.722,
• G.719, and HWA-LD, it cannot establish an audio call with the local site.
• H.As long as the remote site supports any of the three protocols,
• I.711,
• J.728, and ACC-LD, it can establish an audio call with the local site.
• K.The remote site must support
• L.711,
• M.728, and ACC-LD to establish an audio call with the local site.

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正解:

Question No : 9
SC active/standby network (SC is a single network card), when planning the SC's IP address, a total of IP addresses need to be planned. (Please fill in Arabic numerals)

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正解: 3

Question No : 10
In a converged monitoring network, when configuring the SC to connect to the VDC server, which of the following options can be configured for the "Transmission Type"?

• A.FTP
• B.UDP
• C.TCP
• D.TLS

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正解:

Question No : 11
A company is implementing a device-level high-reliability conferencing solution. What are the following options? (Multiple choice)

• A.VP9860 main control board backup
• B.SMC active and standby server deployment
• C.MCU hard disk backup
• D.Single server network card uses dual network card bonding

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正解:

Question No : 12
A service area only supports one registered SC and one external network access SC, but one SC can belong to multiple services at the same time.

• A.TRUE
• B.FALSE

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正解:

Question No : 13
You can use the conf get debugging command on the CloudMCU backend to view conference information.

• A.TRUE
• B.FALSE

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正解:

Question No : 14
Which of the following steps should be followed to recover SMC data in a dual-host scenario?

• A.Check the SMC1 service status -> SMC manual switch -> dual-machine removal -> SMC1 data recovery -> SMC dual-machine configuration
• B.SMC1 data recovery -> dual-machine removal -> check SMC1 service status -> SMC manual switchover -> SMC dual-machine configuration
• C.SMC manual switchover -> Check SMC1 service status -> Dual-node removal -> SMC1 data recovery -> SMC dual-node configuration
• D.Dual-node removal -> Check SMC1 service status -> Manual SMC switchover -> SMC1 data recovery -> SMC dual-node configuration

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正解:

Question No : 15
Through SIP proxy or neighbor mode, it can achieve high-capacity and high-reliability audio and video intercommunication between public network terminals and enterprise intranet terminals.

• A.TRUE
• B.FALSE

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正解: