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السؤال #1
In RTP packet, the timestamp reflects the sampling instant of the first octet in the RTP data packet. The sampling instant must be derived from a clock that increments monotonically and linearly in time to allow synchronization and jitter calculations.The initial value of the timestamp should be random. It increases by 1 with each increasing packet. ( )
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #2
For Rack MCU, we can configure two main control boards for redundancy backup. On the SMC, you just need to configure one IP address for the active and standby main control boards. ()
A. ALSE
B. RUE
عرض الإجابة
اجابة صحيحة: A
السؤال #3
The new and old MCU architectures differ in bandwidth and codec resource usage during cascading. The new architecture supports multiple working modes, such as MCU, SFU, and IAU. The old architecture does not provide different working modes of the MCU. Which of the following statements is false about MCU cascading?
A. hen MCUs of the old architecture are cascaded, the cascading channel consumes bandwidth and codec resources
B. hen MCUs of the new architecture are cascaded, both the cascading channel and proxy channel consume bandwidth and codec resources
C. hen the MCU of the old architecture is cascaded with the MCU of the new architecture, the proxy channel consumes bandwidth and codec resources
D. hen the MCU of the old architecture is cascaded with the MCU of the new architecture, the cascading channel consumes bandwidth and codec resources
عرض الإجابة
اجابة صحيحة: D
السؤال #4
Audio Enhancement Technologies-ANR is used to adjust the voice volume of a telephone call. ()
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #5
RFC2190 defines three formats for H.263 payload header: modes A, B, and C. Mode A is recommended and also the most common one. ( )
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #6
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.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #7
By default, a single registration SC server supports a maximum of 20,000 registered devices.
A. RUE
B. ALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #8
RFC2190 defines three formats for H.263 payload header: modes A, B, and C. Mode A is recommended and also the most common one. ( )
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #9
In RTP packet, the timestamp reflects the sampling instant of the first octet in the RTP data packet. The sampling instant must be derived from a clock that increments monotonically and linearly in time to allow synchronization and jitter calculations.The initial value of the timestamp should be random. It increases by 1 with each increasing packet. ( )
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #10
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?
A. iManager U2000
B. IdeaManager
C. eSight
D. SMC
عرض الإجابة
اجابة صحيحة: B
السؤال #11
By default, a single registration SC server supports a maximum of 20,000 registered devices.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #12
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. Call signaling between public and private network terminals complies with H
C. After a call is established, keep-alive packets must be periodically transmitted to the maintain pinhole path
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
عرض الإجابة
اجابة صحيحة: D
السؤال #13
RFC2190 defines three formats for H.263 payload header: modes A, B, and C. Mode A is recommended and also the most common one. ( )
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #14
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.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #15
Which of the following statements are true about the multi - level protection of the collaboration hardware platform? (Choose all that apply.)
A. Network port backup is provided
B. Fan backup is provided
C. Power supply backup is provided
D. Disk backup (RAID) is provided
عرض الإجابة
اجابة صحيحة: ABCD
السؤال #16
Which of the following statements is true about image sampling?
A. he YUV 4:2:0 sampling mode is half the size of the YUV 4:4:4 sampling mode
B. or human eyes, the Y component in YUV is the most important
C. GB components have weak correlation, which is unfavorable for video image compression
D. he transmission rate of video data using YUV 4:2:0 is 140 Mbit/s
عرض الإجابة
اجابة صحيحة: A
السؤال #17
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
عرض الإجابة
اجابة صحيحة: C
السؤال #18
In H.323 protocol, opening the logical channel follows the rule of "who want to transmit, who open it". ()
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #19
Which of the following statements are true about the multi-level protection of the collaboration hardware platform? (Choose all that apply.)
A. etwork port backup is provided
B. an backup is provided
C. ower supply backup is provided
D. isk backup (RAID) is provided
عرض الإجابة
اجابة صحيحة: ABCD
السؤال #20
After an AVC conference is held, a user logs in to the MCU and runs the debug command. The following information is displayed: Which of the following is the IP address of site T3? In the conference site list, Site 18 corresponds to T3 and its remote media IP ([RmtMedIp]) is listed as 172.23.132.76.
A. 172
B. 172
C. 172
D. 172
عرض الإجابة
اجابة صحيحة: D
السؤال #21
The H.225 defines ( ) signaling. (Select 2 answers)
A. Q
B. H
C. RAS
D. T
عرض الإجابة
اجابة صحيحة: AC
السؤال #22
Over an H.460 network, communication between the video terminal and client GK complies with ( ).
A.
B.
C.
D.
عرض الإجابة
اجابة صحيحة: D
السؤال #23
The NLog V2 allows users to check the historical network statistics of an active site and historical network of a conference.()
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #24
If a GK, by resolving the called number, finds that the called terminal registers with a neighboring GK, the GK can request the neighboring GK to resolve the called number.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #25
By default, a single registration SC server supports a maximum of 20,000 registered devices.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #26
Area management is implemented by ( ).
A. GK
B. SMC
C. MCU
D. HD video terminal
عرض الإجابة
اجابة صحيحة: A
السؤال #27
By default, a single registration SC server supports a maximum of 20,000 registered devices.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #28
Which of the following statements are true about the multi-level protection of the collaboration hardware platform? (Choose all that apply.)
A. Network port backup is provided
B. Fan backup is provided
C. Power supply backup is provided
D. Disk backup (RAID) is provided
عرض الإجابة
اجابة صحيحة: ABCD
السؤال #29
Area management is implemented by ( ).
A. GK
B. SMC
C. MCU
D. HD video terminal
عرض الإجابة
اجابة صحيحة: A
السؤال #30
The packet loss statistics collected by the NLog V2 does not include the packet loss for the data communications devices on the relevant lines.()
A. ALSE
B. RUE
عرض الإجابة
اجابة صحيحة: A
السؤال #31
Over an H.460 network, private video terminals connect to ( ) in the SETUP phase.
A. Ss
B. ublic network terminals
C. Ks
D. CUs
عرض الإجابة
اجابة صحيحة: A
السؤال #32
For Network-based Recording, no MCU resource is used and the running status of the video conference is not affected. ()
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #33
Network recording supports downloading the recording file to the local area in ( ) format, and supports local playback.
A. MV
B. MVB
C. TV
D. LV
عرض الإجابة
اجابة صحيحة: D
السؤال #34
SIP protocol is a ( ) protocol.
A. Application layer
B. Transport layer
C. Network layer
D. Data link layer
عرض الإجابة
اجابة صحيحة: A
السؤال #35
The capability exchange information is as follows(). (Select 3 answers)
A. TCS
B. TCSA
C. TCSR
D. IRR
عرض الإجابة
اجابة صحيحة: ABC
السؤال #36
In RTP packet, the timestamp reflects the sampling instant of the first octet in the RTP data packet. The sampling instant must be derived from a clock that increments monotonically and linearly in time to allow synchronization and jitter calculations.The initial value of the timestamp should be random. It increases by 1 with each increasing packet. ( )
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #37
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.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #38
Which of the following is the maximum number of cascaded conference levels supported by the SMC?
A. 8
B. 4
C. 2
D. 6
عرض الإجابة
اجابة صحيحة: B
السؤال #39
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?
A. A238 Mbit/s
B. B557 Mbit/s
C. C446 Mbit/s
D. D600 Mbit/s
عرض الإجابة
اجابة صحيحة: D
السؤال #40
For Rack MCU, we can configure two main control boards for redundancy backup. On the SMC, you just need to configure one IP address for the active and standby main control boards. ()
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #41
The H.225 defines ( ) signaling. (Select 2 answers)
A. Q
B. H
C. RAS
D. T
عرض الإجابة
اجابة صحيحة: AC
السؤال #42
The H.225 defines ( ) signaling. (Select 2 answers)
A. Q
B. H
C. RAS
D. T
عرض الإجابة
اجابة صحيحة: AC
السؤال #43
RFC2190 defines three formats for H.263 payload header: modes A, B, and C. Mode A is recommended and also the most common one. ( )
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #44
If a GK, by resolving the called number, finds that the called terminal registers with a neighboring GK, the GK can request the neighboring GK to resolve the called number.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #45
The FE port IP address cannot be in the same network segment as the GEO or GE1 port IP address. Otherwise, network faults may occur, and the ALM indicator on the front panel is on. ()
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #46
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?
A. iManager U2000
B. IdeaManager
C. eSight
D. SMC
عرض الإجابة
اجابة صحيحة: B
السؤال #47
The new and old MCU architectures differ in bandwidth and codec resource usage during cascading. The new architecture supports multiple working modes, such as MCU, SFU, and IAU. The old architecture does not provide different working modes of the MCU. Which of the following statements is false about MCU cascading?
A. AWhen the MCU of the old architecture is cascaded with the MCU of the new architecture, the proxy channel consumes bandwidth and codec resources
B. BWhen MCUs of the old architecture are cascaded, the cascading channel consumes bandwidth and codec resources
C. CWhen the MCU of the old architecture is cascaded with the MCU of the new architecture, the cascading channel consumes bandwidth and codec resources
D. DWhen MCUs of the new architecture are cascaded, both the cascading channel and proxy channel consume bandwidth and codec resources
عرض الإجابة
اجابة صحيحة: C
السؤال #48
Network recording can record the audio and video output of any venue in the video conference (voice, SD/HD/Zhizhen) and play it back on demand via web.
A. rue
B. alse
عرض الإجابة
اجابة صحيحة: A
السؤال #49
The Record-Route header field indicates the route of a request.
A. RUE
B. ALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #50
RFC2190 defines three formats for H.263 payload header: modes A, B, and C. Mode A is recommended and also the most common one. ( )
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #51
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?
A. iManager U2000
B. IdeaManager
C. eSight
D. SMC
عرض الإجابة
اجابة صحيحة: B
السؤال #52
In the SIP protocol, the Via header field indicates the route of the subsequent response message.
A. RUE
B. ALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #53
In RTP packet, the timestamp reflects the sampling instant of the first octet in the RTP data packet. The sampling instant must be derived from a clock that increments monotonically and linearly in time to allow synchronization and jitter calculations.The initial value of the timestamp should be random. It increases by 1 with each increasing packet. ( )
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #54
The H.225 defines ( ) signaling. (Select 2 answers)
A. Q
B. H
C. RAS
D. T
عرض الإجابة
اجابة صحيحة: AC
السؤال #55
In video firewall mode, the GEO ports of all the boards must be in the same network segment, and all the GE1 ports of all the boards must be in another same network segment.()
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #56
In Multi - channel Cascading, the prioritie at using the multiple channels is ( ).
A. they are the same
B. Upper - level MCU > Lower - level MCU
C. Upper - level MCU < Lower - level MCU
D. user can define it
عرض الإجابة
اجابة صحيحة: B
السؤال #57
Wireshark supports packet decoding for various protocols, include ( ). (Select 3 answers)
A. IP
B. TCP
C. RTP
D. H
عرض الإجابة
اجابة صحيحة: ABC
السؤال #58
The relationship between RTCP port and RTP port is().
A. TCP port = RTP port -1
B. TCP port = RTP port + 2
C. TCP port = RTP port + 1
D. TCP port = RTP port
عرض الإجابة
اجابة صحيحة: C
السؤال #59
After the conference ends, the recording server sends a recording address to the SMC who will then send emails to relevant users, notifying them of the on-demand playback.()
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A

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