Cloud C debugging command, mswt-media trace <SrcStmNO> <DstStmNO> <Flag>, which of the following statements is correct?
- A . DstStmNO is the source stream number
- B . Flag is 1 means printing Nalu information
- C . SrcStmNO is character type
- D . Flag can take values -1, 0, 1
Cloud MCU debugging command: mswt-media allflow, which of the following are the options of this command?
- A . Display all ongoing code stream rates
- B . Display MCU operation log
- C . Display the conference number and venue number currently in progress on the MCU
- D . Show Cloud MCU current system information
H.264 video divides images into three types of frames: I, P, and B. Among them, frame a uses inter-frame coding, and frame b uses intra-frame coding. Which of the following statements about types a and b is correct?
- A . B, P
- B . P, I
- C . I, P
- D . I, B
John is an SMC system operator. He tries to deploy an independent SMC on a new bare metal server. Which installation scenario should he choose?
- A . MEDIUM
- B . Cloud Link Edge 1000
- C . LARGE
- D . STANDRD
John is an SMC system operator. He tries to deploy SMC and SC co-deployment on a new bare metal server that meets the minimum requirements for co-deployment. Which installation scenario should he choose?
- A . MEDIUM
- B . Cloud Link Edge 1000
- C . LARGE
- D . STANDRD
John wants to configure two NAT mappings about SC on the firewall by referring to the figure below. Which of the following destination address translation methods should he use?
- A . One-to-one conversion between public network port and private network address
- B . One-to-one conversion between public network port and private network port
- C . One-to-one conversion between public network address and private network address
- D . One-to-one conversion between public network address and private network address
RAS is carried on the UDP layer. The port number can be configured on the MCU. What is the default source port number?
- A . 1725
- B . 1729
- C . 1719
- D . 1720
RSE6500 provides three network ports: GE0, GE1, and FE. GE0 is used by default. Which of the following statements about the functions of each network port is wrong?
- A . GE0 network port/SFP0 optical port: recording and broadcasting service network port
- B . FE network port: maintenance network port
- C . GE1 network port/SPF1 network port: connect to IPSAN and NAS network ports
- D . The optical port and the electrical port serve as backups for each other. When connected at the same time, the electrical port is used first to transmit data.
Which of the following concurrent recordings does RSE8800 support?
- A . 8-channel 4K30 single stream
- B . 4-channel 4K30 single stream
- C . 8-channel 8K30 single stream
- D . 8-channel 4K30 dual stream
Which of the following does the role of the RTCP protocol include?
- A . Call signaling
- B . Transmission Control
- C . Capability set
- D . Stream transmission
Which of the following does the function of RTP protocol include?
- A . Real-time media transmission
- B . Conference Control
- C . Call control
- D . Media Control
SC is independently deployed on X86 servers, and SMC system administrators manually upgrade the old version SCV600R0019C10SPCb25. After extracting the new version of the package, which of the following scripts should be executed?
- A . Sc_update_docker.sh
- B . Sc_deployment_docker.sh
- C . Online_update_S sh
- D . Deployment Sh
In versions after SHC 21.0.100.SPC103, the SMC server is powered off and restarted abnormally. After restarting, it is found that a certain container is abnormal or missing. There is a "disaster recovery exception" alarm in the SKC system. To ensure that the business can run normally, you can Which of the following actions is used to recover a lost container?
- A . Sh/home/smc_mange/command/recovery_container.sh
- B . Sh/home/sc/startCronForScUpdate.sh
- C . Sh/home/smc_manage/command/recreate_container.sh
- D . Sh/hone/smc_mange/command/stop_all.sh
Which of the following does the flexible extension mechanism of the SIP protocol refer to?
- A . Add header fields and message types
- B . Text protocols are easy to extend
- C . Media negotiation uses SDP to facilitate adding new media features
- D . Add misalignment check
The SMC system administrator enabled the SC mandatory media routing policy on the SKC. The conference administrator John successfully booked the conference but all parties were unable to join the conference. Which of the following reasons could this fault occur?
- A . The terminal version is too old and the compatibility switch on the SMC is not turned on.
- B . The party joining the conference is a soft terminal
- C . License has no traversal traffic
- D . No one answers at each terminal side
In the scenario where SMC and SC are co-located, the SMC system administrator manually upgrades the SC version and decompresses the new version V600R019CL0SPCb21 upgrade package. Which of the following scripts should be executed?
- A . sc_deployment_docker.sh
- B . SMC_Docker.sh
- C . Sc_update_docker.sh
- D . ScinstallVithDocker.Tar
T1, T2 and T3 are three terminals under the same SC node area and have all been successfully registered using the SIP protocol. When T2 and T3 are on a call, T1 calls T2’s number through the SIP protocol, then the SC will recover. Which of the following response codes should be given to T1?
- A . 486
- B . 483
- C . 487
- D . 408
T1 and T2 are two terminals in the same SC node area (authentication policy enabled) and both have successfully registered using the SIP protocol. When T1 calls T2’s number through the SIP protocol, the SC replies to T1 ""100 trying"" message, which of the following response codes will SC reply to T1 immediately afterwards?
- A . 403
- B . 408
- C . 404
- D . 407
How many Opus pure audio ports can the VP9830 support?
- A . 500
- B . 2000
- C . 1500
- D . 1000
What is the reason for the call failure?
- A . The called person is offline
- B . Capability negotiation failed
- C . Insufficient call bandwidth
- D . Being called busy
When a single MCU port capacity is insufficient for a multipoint conference, which of the following methods can be adopted to ensure the normal holding of the conference?
- A . Add a new participant terminal
- B . Add MCU to this service area
- C . Change the venue terminal number prefix
- D . Change the number prefix of the MCU
When a user wants to check the network jitter of a terminal receiving and sending data during a video conference, which parameter needs to be checked in the Flash interface of Nlog?
- A . Check ARL and ASL
- B . Check VRL and VSL
- C . Check NRJ and NSJ
- D . Check XRL and XSL
According to the H.323 protocol, which of the following signalings are required to complete the master-slave decision process?
- A . TCSR, TCSA
- B . MSDR, MSDA
- C . GRQ, GCF
- D . DRQ, DCF
Huawei Cloud Link Edge 1000 does not include which of the following network elements?
- A . Cloud MCU
- B . SMC
- C . Cloud RSE
- D . SC
Which of the following operating systems is equipped with Huawei’s ultra-high-definition video conferencing terminal Box 310?
- A . Docker
- B . Kunpeng
- C . Android
- D . Harmony OS
Huawei video conferencing system, bare metal SMC and SC co-deployment scenarios single-select how many conference rooms can this network support?
- A . 5000
- B . 100000
- C . 1000
- D . 10000
Which of the following functions does the data conferencing of Huawei collaboration solution not support?
- A . Desktop sharing
- B . Access WeChat voice calls
- C . Electronic whiteboard
- D . Media Sharing
Assume that T1 and T2 are two radio terminals registered under the same SC node area (SC does not enable media routing). After T1 calls T2’s number through the SIP protocol, T1 and T2 communicate.
Which of the following descriptions of the above call process is correct?
- A . The call signaling interaction between T1 and T2 may or may not pass through the SC.
- B . The media interaction between T1 and T2 may or may not go through SC.
- C . Media interaction between T1 and T2 must go through SC:
- D . The call signaling interaction between T1 and T2 must go through SC
Assume that T1 and T2 are two radio terminals registered under the same SC node area (SC does not enable signaling routing). After T1 calls T2’s number through the H.323 protocol, T1 and T2 communicate. Regarding the following description of TCP link establishment during the Q.931 signaling interaction between T1, T2, and SC during the above call, which option is correct?
- A . When there is a TCP link between T1 and SC, SC actively sends a TCP link establishment request to T1.
- B . When there is a TCP link between T2 and SC, T2 actively sends a TCP link establishment request to SC.
- C . When there is a TCP link between T1 and SC, T1 actively sends a TCP link establishment request to SC.
- D . When there is a TCP link between T2 and T1, SC actively sends a TCP link establishment request to T2.
Assume that T1 and T2 are two radio terminals registered under the same SC node area (SC does not enable signaling routing but enables media routing). After T1 calls T2’s number through the H.323 protocol, T1 and T2 communicate. Which of the following descriptions of signaling and media during the above call process is wrong?
- A . During the above call process, the H.245 signaling interaction between T1 and T2 does not go through the SC.
- B . During the above call process, the Q931 signaling interaction between T1 and T2 does not go through the SC.
- C . During the above call process, the Q931 signaling interaction between T1 and T2 passes through the SC.
- D . During the above call process, the media interaction process between T1 and T2
Assume that T1 and T2 are two radio terminals registered under the same SC node area (SC enables signaling routing). After T1 calls T2’s number through the H.323 protocol, T1 and T2 communicate. Which of the following descriptions of the above call process is wrong?
- A . After T1 receives the ACF message replied by SC, T1 will send a TCP link establishment request to SC.
- B . After the ICP link between T1 and SC is established, 11 will send a SETUP message to SC.
- C . After T1 receives the ACF message replied by SC, SC will send a TCP link establishment request to T1.
- D . After SC receives the SETUP message sent by T1, it will reply with a CALL PROCEEDING message to T1, and then SC will send a TCP link establishment request to T2.
Assume that T3 and T4 are two radio terminals registered under the same SC node area (SC enables signaling routing and media routing). After T3 calls T4’s number through the H.323 protocol, T3 and T4 communicate.
Which of the following descriptions of signaling and media during the above call is correct?
- A . During the above call process, the Q.931 signaling interaction between T3 and T4 does not go through the SC.
- B . During the above call process, the Q.931 signaling interaction between T3 and T4 passes through SC
- C . During the above call process, the media interaction between T3 and T4 does not go through the SC.
- D . During the above call process, the H.245 signaling interaction between T3 and T4 does not go through the SC.
Which of the following protocol payloads can be used to encapsulate various application data, such as video compressed data, audio compressed data, etc.?
- A . RTSP
- B . RSVP
- C . RTCP
- D . RTP
When two terminals are making a point-to-point number call, when will the called single-selection terminal send a call request to GK?
- A . After the called party sends the connect message A
- B . After receiving the setup signaling, the called party
- C . After the called party sends call proceeding
- D . After the called party conducts master-slave negotiation with the calling party
In the bare metal medium-sized co-location networking scenario, in which single-choice mode are SMC and SC deployed in the Euler operating system?
- A . java process
- B . Docker container
- C . Database .dat file format
- D . Executable script.sh format
When a GK wants to reject the single-choice request for terminal IP address resolution sent by a neighbor GK, which of the following signaling can be sent?
- A . GRO
- B . RRO
- C . LRO
- D . LRJ
A certain SMC video conferencing system site plans to use virtualization to deploy a single-select SKC system. In the case of virtualization deployment, the entire network design process should be which of the following options?
- A . Network planning–>Apply for virtual machines–>Install network elements–>Security reinforcement->Apply for basic services
- B . Network planning–>Apply for virtual machines–>Install network elements–>Apply for basic services–>Security reinforcement
- C . Network planning–>Apply for virtual machine–>Apply for basic services–>Install network elements–>Security reinforcement
- D . Apply for virtual machine–>Network planning–>Install network elements–>Security hardening->Apply for basic services
A certain SMC video conferencing system site hopes to converge the number of single-select ports on the firewall to deploy the conference system, and a DMZ area is planned.
Which of the following networking types best meets the needs of the site?
- A . Back-to-back method
- B . SIP proxy method
- C . Dual plane networking mode
- D . Neighbor approach
An SMC video conferencing system site hopes to deploy the conference system by converging the single-selected port number of the firewall, and plans a DMZ area, in which the intranet SC is SCL and the DMZ area SC is SC2. In this case, the most suitable SCL and Which of the following is the form of SC2?
- A . SCL is the registered SC, SC2 is the registered SC
- B . SCL is agent S
- C . SC2 is the agent SSCL is the agent SC, SC2 is the registered S
- D . SCL is the registered SC. SC2 is the agent SC.
A certain SMC video conferencing system site hopes to deploy the conference system with the least license resources for public and private network single-select traversal traffic, and plans to have a DMZ area. Which of the following networking types best meets the needs of the site?
- A . Neighbor approach
- B . SIP proxy method
- C . Back-to-back method
- D . Cross-server and cross-client methods
In a certain meeting, the meeting administrator sent a subtitle to the meeting. Some venue terminals can display this subtitle, and TE Subtitles are not displayed in all conference sites joined via Desktop. Which of the following is the possible reason?
- A . There is a fault in the video input interface of the terminal that cannot display subtitles.
- B . The subtitle format sent by the conference administrator is T.140
- C . The subtitle format sent by the conference administrator is non-T.140
- D . The video output interface of the terminal that cannot display subtitles is faulty.
The SMC video conferencing system at a certain site has a DMZ area, and the single-selected external network terminals include both SIP terminals and a small number of H.323 terminals.
The internal network is SCL and the DMZ area is SC2. Which of the following deployment forms is most suitable?
- A . SC1 is the agent SC and SC2 is the registered SC.
- B . SC1 is the registered SC. SC2 is the agent SC.
- C . SC1 is registered SC, SC2 is registered S
- D . SC1 is the agent SC and SC2 is the agent SC.
The SMC video conferencing system at a certain site has an EDMZ area and the external network terminals are all SIP terminals. The internal network is SC1 and the DMZ area is SC2. Which of the following deployment forms is most suitable?
- A . SC1 is the registered SC. SC2 is the agent SC.
- B . SC1 is agent SC, SC2 is agent S
- C . SC1 is the agent SC, SC2 is the registered S
- D . SC1 is the past SC and SC2 is the registered SC.
A certain two-channel audio file uses PCK encoding, and its sampling frequency is 8 KHz. Each quantized sample value corresponds to an 8-bit binary code. So what is the encoding rate of the audio file in kbps?
- A . 64
- B . 128
- C . 256
- D . 196
After a user logs in to the web interface of VP9650, the information displayed is as shown in the figure below.
Which of the following descriptions of this MCU is wrong?
- A . Users cannot initiate multi-party conferences on the MCU’s web interface.
- B . When users initiate a multi-party conference on the SMC, they can call the media resources of the MCU.
- C . The connection type of this MCU is "SMC2.0/IMS"
- D . The MCU has built-in GK enabled
A terminal suffered a power outage during a conference and left the conference. After it was powered on again, it was not called again, and SKC did not detect that the terminal was hung up.
After inspection by SMC operation and maintenance engineers, it was found that the cause was Cloud MCU’s "No-code stream hang-up time". This situation may be caused by changing the "No-code stream hang-up time" to which of the following configurations?
- A . 1
- B . -1
- C . 20
- D . 0
If a certain channel of voice uses G.728 encoding (the total length of the Ethernet/IP/UDP/RTP header is 60bytes, the encoding rate is 64kbps), and the packaging time is 20ms, then the IP bandwidth required to transmit this channel of voice is approximately which of the following options?
- A . 96kbps
- B . 88kbps
- C . 80kbps
- D . 64kbps
As shown in the figure is the status of a TE30 terminal device. Which of the following operations can be performed on the terminal without single selection?
- A . Call another TE30 terminal on the same network
- B . Share data into meetings via wireless network
- C . Calling call set
- D . Send content during the meeting
The picture shows the main menu effect displayed on a TE30 terminal. What measures can be taken to restore the display effect to normal?
- A . Adjust the "Picture-in-Picture Offset" parameter on the terminal’s web interface.
- B . Select "Enable Dual Screen" on the terminal’s web interface.
- C . Replace other display screens for output
- D . Adjust the "horizontal offset" parameter of the image output on the Teb interface of the terminal
As shown in the figure below, if the user wants to watch subtitles normally on the terminal, the "subtitle output port" needs to be configured as which of the following interfaces?
- A . 2 HDMI OUTA
- B . 3G-SDI OUT
- C . 1MAIN OUT
- D . 3 VGA OUT