HCIP-Collaboration V3.0 H11-861_V3.0 Exam Free Dumps

dumps2024-04-23T09:44:39+08:00

H11-861_V3.0 is one sample for HCIP-Collaboration certification, proving that you have systematically understood and mastered audio and video technologies, H.323 and SIP protocols, system networking design and implementation, and so on. There are 60 questions in the real Huawei H11-861_V3.0 exam, and you have 90 minutes to answer all the questions. The required passing score for the Huawei H11-861_V3.0 exam is 600. The exam cost is $300. We have cracked the latest Huawei HCIP-Collaboration V3.0 H11-861_V3.0 exam dumps, which can make sure you pass easily. Free HCIP-Collaboration V3.0 H11-861_V3.0 exam dumps are available below.

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1. Cloud C debugging command, mswt-media trace <SrcStmNO> <DstStmNO> <Flag>, which of the following statements is correct?

DstStmNO is the source stream number

Flag is 1 means printing Nalu information

SrcStmNO is character type

Flag can take values -1, 0, 1

2. Cloud MCU debugging command: mswt-media allflow, which of the following are the options of this command?

Display all ongoing code stream rates

Display MCU operation log

Display the conference number and venue number currently in progress on the MCU

Show Cloud MCU current system information

3. 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?

B, P

P, I

I, P

I, B

4. 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?

MEDIUM

Cloud Link Edge 1000

LARGE

STANDRD

5. 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?

MEDIUM

Cloud Link Edge 1000

LARGE

STANDRD

6. 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?

One-to-one conversion between public network port and private network address

One-to-one conversion between public network port and private network port

One-to-one conversion between public network address and private network address

7. RAS is carried on the UDP layer. The port number can be configured on the MCU. What is the default source port number?

1725

1729

1719

1720

8. 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?

GE0 network port/SFP0 optical port: recording and broadcasting service network port

FE network port: maintenance network port

GE1 network port/SPF1 network port: connect to IPSAN and NAS network ports

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.

9. Which of the following concurrent recordings does RSE8800 support?

8-channel 4K30 single stream

4-channel 4K30 single stream

8-channel 8K30 single stream

8-channel 4K30 dual stream

10. Which of the following does the role of the RTCP protocol include?

Call signaling

Transmission Control

Capability set

Stream transmission

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11. Which of the following does the function of RTP protocol include?

Real-time media transmission

Conference Control

Call control

Media Control

12. 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?

Sc_update_docker.sh

Sc_deployment_docker.sh

Online_update_S sh

Deployment Sh

13. 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?

Sh/home/smc_mange/command/recovery_container.sh

Sh/home/sc/startCronForScUpdate.sh

Sh/home/smc_manage/command/recreate_container.sh

Sh/hone/smc_mange/command/stop_all.sh

14. Which of the following does the flexible extension mechanism of the SIP protocol refer to?

Add header fields and message types

Text protocols are easy to extend

Media negotiation uses SDP to facilitate adding new media features

Add misalignment check

15. 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?

The terminal version is too old and the compatibility switch on the SMC is not turned on.

The party joining the conference is a soft terminal

License has no traversal traffic

No one answers at each terminal side

16. 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?

sc_deployment_docker.sh

SMC_Docker.sh

Sc_update_docker.sh

ScinstallVithDocker.Tar

17. 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?

486

483

487

408

18. 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?

403

408

404

407

19. How many Opus pure audio ports can the VP9830 support?

500

2000

1500

1000

20. What is the reason for the call failure?

The called person is offline

Capability negotiation failed

Insufficient call bandwidth

Being called busy

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21. 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?

Add a new participant terminal

Add MCU to this service area

Change the venue terminal number prefix

Change the number prefix of the MCU

22. 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?

Check ARL and ASL

Check VRL and VSL

Check NRJ and NSJ

Check XRL and XSL

23. According to the H.323 protocol, which of the following signalings are required to complete the master-slave decision process?

TCSR, TCSA

MSDR, MSDA

GRQ, GCF

DRQ, DCF

24. Huawei Cloud Link Edge 1000 does not include which of the following network elements?

Cloud MCU

SMC

Cloud RSE

25. Which of the following operating systems is equipped with Huawei’s ultra-high-definition video conferencing terminal Box 310?

Docker

Kunpeng

Android

Harmony OS

26. Huawei video conferencing system, bare metal SMC and SC co-deployment scenarios single-select how many conference rooms can this network support?

5000

100000

1000

10000

27. Which of the following functions does the data conferencing of Huawei collaboration solution not support?

Desktop sharing

Access WeChat voice calls

Electronic whiteboard

Media Sharing

28. 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?

The call signaling interaction between T1 and T2 may or may not pass through the S

The media interaction between T1 and T2 may or may not go through S

Media interaction between T1 and T2 must go through SC:

The call signaling interaction between T1 and T2 must go through SC

29. 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?

When there is a TCP link between T1 and SC, SC actively sends a TCP link establishment request to T1.

When there is a TCP link between T2 and SC, T2 actively sends a TCP link establishment request to S

When there is a TCP link between T1 and SC, T1 actively sends a TCP link establishment request to S

When there is a TCP link between T2 and T1, SC actively sends a TCP link establishment request to T2.

30. 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?

During the above call process, the

245 signaling interaction between T1 and T2 does not go through the S

During the above call process, the Q931 signaling interaction between T1 and T2 does not go through the S

During the above call process, the Q931 signaling interaction between T1 and T2 passes through the S

During the above call process, the media interaction process between T1 and T2

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31. 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?

After T1 receives the ACF message replied by SC, T1 will send a TCP link establishment request to S

After the ICP link between T1 and SC is established, 11 will send a SETUP message to S

After T1 receives the ACF message replied by SC, SC will send a TCP link establishment request to T1.

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.

32. 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?

During the above call process, the

931 signaling interaction between T3 and T4 does not go through the S

During the above call process, the

931 signaling interaction between T3 and T4 passes through SC

During the above call process, the media interaction between T3 and T4 does not go through the S

During the above call process, the

245 signaling interaction between T3 and T4 does not go through the S

33. Which of the following protocol payloads can be used to encapsulate various application data, such as video compressed data, audio compressed data, etc.?

RTSP

RSVP

RTCP

RTP

34. When two terminals are making a point-to-point number call, when will the called single-selection terminal send a call request to GK?

After the called party sends the connect message A

After receiving the setup signaling, the called party

After the called party sends call proceeding

After the called party conducts master-slave negotiation with the calling party

35. 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?

java process

Docker container

Database .dat file format

Executable script.sh format

36. 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?

GRO

RRO

LRO

LRJ

37. 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?

Network planning-->Apply for virtual machines-->Install network elements-->Security reinforcement->Apply for basic services

Network planning-->Apply for virtual machines-->Install network elements-->Apply for basic services-->Security reinforcement

Network planning-->Apply for virtual machine-->Apply for basic services-->Install network elements-->Security reinforcement

Apply for virtual machine-->Network planning-->Install network elements-->Security hardening->Apply for basic services

38. 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?

Back-to-back method

SIP proxy method

Dual plane networking mode

Neighbor approach

39. 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?

SCL is the registered SC, SC2 is the registered SC

SCL is agent S

SC2 is the agent SSCL is the agent SC, SC2 is the registered S

SCL is the registered S

SC2 is the agent S

40. 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?

Neighbor approach

SIP proxy method

Back-to-back method

Cross-server and cross-client methods

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41. 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?

There is a fault in the video input interface of the terminal that cannot display subtitles.

The subtitle format sent by the conference administrator is

140

The subtitle format sent by the conference administrator is non-

140

The video output interface of the terminal that cannot display subtitles is faulty.

42. 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?

SC1 is the agent SC and SC2 is the registered S

SC1 is the registered S

SC2 is the agent S

SC1 is registered SC, SC2 is registered S

SC1 is the agent SC and SC2 is the agent S

43. 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?

SC1 is the registered S

SC2 is the agent S

SC1 is agent SC, SC2 is agent S

SC1 is the agent SC, SC2 is the registered S

SC1 is the past SC and SC2 is the registered S

44. 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?

128

256

196

45. 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?

Users cannot initiate multi-party conferences on the MCU's web interface.

When users initiate a multi-party conference on the SMC, they can call the media resources of the MC

The connection type of this MCU is "SMC2.0/IMS"

The MCU has built-in GK enabled

46. 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?

-1

47. 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?

96kbps

88kbps

80kbps

64kbps

48. 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?

Call another TE30 terminal on the same network

Share data into meetings via wireless network

Calling call set

Send content during the meeting

49. The picture shows the main menu effect displayed on a TE30 terminal. What measures can be taken to restore the display effect to normal?

Adjust the "Picture-in-Picture Offset" parameter on the terminal's web interface.

Select "Enable Dual Screen" on the terminal's web interface.

Replace other display screens for output

Adjust the "horizontal offset" parameter of the image output on the Teb interface of the terminal

50. 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?

2 HDMI OUTA

3G-SDI OUT

1MAIN OUT

3 VGA OUT

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51. The following figure shows the board slot information of VP9660. Which of the following boards needs to be configured in slot 1?

ECCB

Media

ISDN

RSE-M

52. Color temperature affects the color reproduction of video images. The higher the color temperature, the higher the color ().

Whiter

bluish

reddish

yellowish

53. In the process of the camera collecting video signals and transmitting them to the display of the destination terminal, photoelectric conversion occurs at which of the following stages?

Signal collection stage with lens

Coding and compression stage

Analog/digital conversion stage

Image sensor signal processing stage

54. Use I deaHub to open an application and browse in split screen, browsing two pages of an application at the same time to improve the visual perception and user experience.

Which of the following is an unsupported browsing mode option?

Navigation mode

Shopping mode

Single window mode

Conference mode

55. After using IdeaHub to join a remote meeting, which of the following operations is not supported?

Take screenshots and annotate them during the meeting

Share materials in meetings

Remotely control the desktop during the meeting

Share a whiteboard in a meeting

56. When using the remote control wizard to operate ldeaHub, which of the following functions cannot be achieved?

Increase or decrease volume

Click the laser pointer to select

Turn pages up and down

Laser pen selected area

57. In the video conferencing system, if other terminals have not joined the conference and there is echo or howling when speaking at the local single-select venue, which of the following options can be used by the local venue to troubleshoot?

Is the sound cancellation processing algorithm abnormal?

Whether the mixer or audio matrix loops back the terminal output sound to the input

Confirm whether the gain of the local amplification equipment is too high.

Whether the speaker and microphone are close to each other.

58. In video conferencing, local noise is required to be no greater than ().

36dB

38dB

40dB

34dB

59. When logging in to SC as the admin user through the command line for the first time, you need to select which of the following operations to perform?

Configure SC’s default route

Delete user configuration

Change the default password

Configure SC IP

60. Usually we use PCK coding, that is, the continuously changing d signal is converted into an e signal through three sequential steps of a, b, and c.

Which of the following options fits the description of abcde?

Quantization, sampling, encoding, digital, analog

Sampling, quantization, encoding, analog, digital

Sampling, encoding, quantization, analog, digital

Encoding, quantization, sampling, digital, analog

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61. Which of the following header fields is used to indicate the SIP entity and route that the request passes through?

via

CSeq

From

62. A gatekeeper can send an address resolution request to other gatekeepers through which of the following signalings?

RRQ

GRQ

LRQ

URQ

63. What type of RTCP message does the picture below represent?

SDES

APP

64. When Little A was holding a video conference, he found that the image was unclear and the overall image was dark. Please analyze it based on the optical principles of video conference construction. Which of the following is the most likely reason?

Insufficient illumination!

The light is too bright

The network is unstable

There is interference from strong signal sources around

65. How many ways can a venue join an IVR conference?

66. A transaction contains several parts, which part is not necessary?

Zero or more provisional responses

A final response

A request message

ACK

67. One channel of video signal, single selection requires a bit rate of about 600Mbps without encoding and compression. Which of the following options meets this bit rate? (Note: One pixel is 24 bit)

720p, 30fps

1080p, 30fps

720p, 60fps

1080p, 60fps

68. It is known that the image resolution of a certain video signal is 1280*720, the frame rate is 30 fps, and each image system point is 24 bits. Then it is compressed through encoding of the H.264 protocol (compression ratio 400:1). What is the code stream rate of this video signal in Mbit/s?

2.6

1.6

69. Which of the following options does not belong to the anti-packet loss design in Huawei video conferencing system?

SEC anti-packet loss technology

Prioritize audio transmission

When the network packet loss rate is small, ARQ will be automatically enabled based on network delay.

Acoustic signal simulation

70. Which of the following descriptions of the two color spaces, RGB and YUV is wrong?

In the YUV color space, T represents brightness and UV represents chroma.

In daily life, we usually use RGB color space,

In video transmission, we usually choose YUV color space

In video transmission, we can choose either RGB color space or YUV color space.

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71. In the following description of the performance and capacity of the RSE6500, which one is wrongly selected?

Maximum number of online users (including registered users and visitors) 2,000

Maximum number of online conference terminals (including live broadcast and on-demand) 100

Supports recording 40 meetings at the same time, no video format restrictions

Supports recording 30 meetings at the same time, no video format restrictions

72. Which of the following descriptions of the SIP protocol is wrong?

In SIP multimedia communication, the RTCP protocol is used to ensure the real-time transmission of media streams.

SIP is an application layer protocol that can be carried on different transmission protocols, such as TCP, UDP, and TLS

SIP messages include request messages and response messages.

In SIP multimedia communication, the SDP protocol is used for media negotiation during session establishment.

73. Which of the following descriptions of the SIP protocol is correct?

Can be used to transmit voice packets

Can be transmitted based on TCP

Cannot be transmitted based on UDP

It is a transport layer protocol

74. Which of the following descriptions about the indicator lights of the VP9660 board is wrong?

The ALM indicator light is always off, indicating that the board is working normally.

The RUN indicator is solid green, indicating that the board is operating normally.

The GE/FE network port indicator light is green and off, indicating that the network port is connected.

The ACT indicator is solid green, indicating that the board is the main board.

75. Which of the following is the correct ranking of the voice quality of different voice codec protocols?

AAC LD>

722>

728>

711

AAC LD>

722>

711>

728

711>

728>

722>AAC_LD

722 >

711>

728>AAC_LD

76. Which of the following statements about Huawei’s collaboration solutions is correct?

In the SC remote disaster recovery scenario, if the SC proxy media, there is no need to add bandwidth between the primary and secondary sites for media proxy.

SMC and SC support dual machines, and smooth service switching can be achieved without interruption when a fault occurs.

No need to increase bandwidth in SMC dual-machine remote disaster recovery scenario

When using MCU resource pool backup, automatic cascading cannot be achieved.

77. Which of the following statements about microphone arrays is wrong?

The more microphones in the array, the finer the spatial division, and the better the speech enhancement and noise reduction effects.

Microphone array can be used for sound source localization and background noise suppression. : linear array, planar array and three-dimensional array according to layout shape.

The microphone array needs to be composed of two types of microphones: unidirectional and omnidirectional.

78. Which of the following descriptions of sound perception is correct?

Amplitude affects loudness and length.

Timbre, also known as timbre, is determined by the harmonic spectrum and envelope of the sound waveform.

Amplitude, frequency, and duration all affect sound length.

As the sampling period increases, the pitch and loudness will also increase.

79. In the following description of the video conferencing terminal using the SIP protocol to register, which option is wrong?

When the video conferencing terminal uses the TLS protocol for transmission, the terminal needs to apply to the SC in advance to establish a TCP link before registering with the S

When the video conferencing terminal uses the UDP protocol for transmission, the terminal needs to apply to the SC in advance to establish a TCP link before registering with the S

When the video conferencing terminal uses the TCP protocol for transmission, the terminal needs to apply to the SC in advance to establish a TCP link before registering with the S

When the video conferencing terminal establishes a TCP link with the SC before registration, the TCP link will remain in existence and will only be released when the terminal logs out.

80. Which of the following statements about image sampling is correct?

The three components of RGB have weak correlation, which is not conducive to video image compression commonly used for image display.

The 4:2:0 sampling mode in YUV can reduce the volume by 2 times compared to the 4:4:4 sampling mode.

The data transmission rate of a video using YUV 4:2:0 is 140Rbits. If the video is in 4:2:2 mode, the transmission rate required for the video is 175Mbits.

For the human eye, the Y component of YUV is the most important, so UV can be downsampled.

Page 9 of 16

81. Which of the following descriptions about color rendering index is wrong?

Color rendering index refers to a measure of the degree to which the color of an object matches the color of an object when illuminated by this light source and when illuminated by a standard light source.

Color rendering index affects the color restoration of video images and the saturation of images

The larger the value of the color rendering index, the higher the degree of compliance, with a maximum of 100

The smaller the value of the color rendering index, the higher the degree of compliance. The minimum value is 100.

82. Which of the following statements about audio is wrong?

If the sampling frequency of a certain segment of speech is 44 KHz. The sampling size is 16bit and the rate is 176 KB/m. Then the audio file is monophonic audio.

If a certain voice channel uses

729, the rate is SKbits, and the packetization period is 20ms. Then the voice bandwidth is 34.4Kbit/s-

If a certain channel of voice uses

728 encoding, the encoding rate is 64kbps, and the packaging time is 20ms, then the P bandwidth required to transmit this channel of voice is about 86 kbps

If a certain voice channel uses

729, the rate is 5.3Kbit/s. The packetization period is 30ms, then the payload is 159bitn.

83. Which of the following descriptions about illumination is wrong?

Illuminance refers to the degree to which an object is illuminated

Illumination is expressed by the luminous flux received per unit area.

There is a lot of image noise in places with sufficient illumination.

The unit of illumination is Lux (Lux, 1x)

84. Which of the following codec protocols can be used for broadband voice?

711

729

718

Ilbc

85. Which of the following interactive messages is not carried in H.245 messages?

Secondary capability negotiation

Flow control command

Frame request

Tunnel method

86. Which of the following devices can only be added to SMC2.0 in an unmanageable manner?

TE30

VP9660

TE Desktop

VP9650

87. Which of the following messages indicates that the SIP server is faulty and cannot complete the processing of the correct message?

6xx

5xx

3xx

1xx

88. Which of the following messages belongs to the extended request message in the SIP protocol?

INVITE

OPTIONS

MESSAGE

89. Which of the following protocols is a protocol used to control conference media channels?

225

239

281

245

90. Which of the following signaling does not belong to Q.931 signaling?

ALERTING

CONNECT

OLC

SETUP

Page 10 of 16

91. Which of the following does not belong to Huawei's multi-functional collaboration features?

Writing with pen edge

Ejection expression

Gesture Erase

Two people writing the same book

92. Which of the following descriptions does not belong to the MCU audio mixing strategy?

You can control the sound not to be sent to a certain terminal

It is not necessary to process the sound received from a certain terminal

Mix all venue sounds

Only mix the loudest channels

93. Which of the following is the meaning of response message 3xx?

The request message has been received and is being processed.

The request is received, processed and successfully accepted

Indicates that the SIP server failure cannot complete the processing of the correct message.

Further actions are required to complete the request

94. Which of the following is the basic unit of the SIP protocol and the basic interaction unit between the client and the server?

Bytes

Starting line

News

Field

95. Which of the following network elements does not belong to Huawei's intelligent collaboration solution?

SMC

MCU

HW Cloud Link Desktop

Cloud Link Edge Dev Board

96. Which of the following is not a feature of Cloud link Box 310?

Super network adaptability, 50% video packet loss resistance

Equipped with Harmony OS

Support fast echo cancellation technology

Support 4K remote sharing

97. Which of the following refers to the functionality of extending the request NOTIFY?

Identify the reliability of provisional responses

Send event status to status server

Send a notification event

Request an instant message

98. Which of the following types of RTCP messages is used to describe the source of sending RTCP packets?

SDES

APP

99. Which of the following statements is correct?

The CANCEL transaction can only be sent after receiving the temporary response to INVITE (including 100) and before the final response.

CANCEL transactions can be used for CANCEL INVITE transactions and non-INVITE transactions.

There is a three-way handshake process for non-INVITE transactions.

Provisional responses (1xx) can exist for non-INVTE transactions.

100. Which of the following statements is correct?

The size of the signal-to-noise ratio has no direct impact on the clarity of the sound.

Generally speaking, the greater the signal-to-noise ratio, the smaller the noise mixed in the audio signal, and the higher the sound quality; the smaller the signal-to-noise ratio, the lower the sound quality.

Generally speaking, the greater the signal-to-noise ratio, the smaller the noise mixed in the audio signal, and the lower the sound quality: the smaller the signal-to-noise ratio, the higher the sound quality.

Signal-to-noise ratio is an important indicator of sound timbre and pitch.

Page 11 of 16

101. Which of the following options is wrong?

During the point-to-point number calling process, GK will receive two call requests.

During the point-to-point number calling process, Alerting signaling is the signaling used in the

225 connection process.

During a point-to-point number call,

245 will perform capability set matching before opening the logical channel.

During a point-to-point number call, the called terminal will send a call request to GK only after receiving the setup.

102. Because of Fusion Reliability strategy of the Compute virtualization platform. When a virtual machine or host fails, Fusion Compute may migrate virtual machines to different hosts for running.

Therefore, administrator John needs to configure which of the following policies to prevent the ESN of the SKC virtual machine from changing?

Virtual machine backup

Virtual machine snapshot restoration

Virtual Machine Alternatives

Cluster resource control

103. When using Wireshark to analyze packets, if you want to filter out the packets sent by terminal T1 (IP address 192.168.1.100) to SC (IP address 192.168.1.212), which of the following filter condition expressions can be used to filter?

ip. src==192.168.1.100 and ip. dst==192.168.1.212

ip. dst==192.168.1.100 and ip. src==192.168.1.212

ip.addr==192.168.1.100 and ip.addr==192.168.1.212

ip. addr! =192.168.1.100 and ip. addr!X:ospf666=192.168.1.212

104. The meeting scheduled by the user was not held on time. Which of the following measures can be taken to solve this problem?

Check and modify the device system time on the ICU web interface

Check the GK registration status of the terminal and MCU

Change the service area of the MCU

Check and modify the terminal time

105. Which of the following operations does a user needs to perform when logging into the SC using the command line as the admin account for the first time on a new SC?

Configure SC ’s default route

Configure SC LAN I oIP

Change password

Modify SC mode

106. From the information shown in the figure below, we can infer which of the following color sampling methods is used in this video stream?

0.168055555555556

0.167372685185185

0.168078703703704

0.169490740740741

107. Due to the display size and MCU resource limitations, the number of multi-picture sub-pictures generally does not exceed 24, otherwise the image will be unclear if the image is too small.

TURE

FALSE

108. If the remote site wants to hear the sound of the local site, the sound signal needs to undergo a series of processing. Which of the following is the correct audio signal processing process?

Analog signal collection->encoding and compression->transmission->decoding->playback

Analog signal collection->Decoding->Transmission->Encoding Compression->Playback

Analog signal collection->Transmission->Encoding and compression->Decoding->Playback

Analog signal collection->encoding and compression->decoding->transmission->playback

109. In the H.323 protocol, the basic functions of Gatekeeper do not include which of the following?

Protocol conversion

Regional Management

Geocoding

Bandwidth Management

110. In the H.323 protocol, which signaling is used to realize the user access authentication and address resolution request information sent by the node to the gatekeeper?

GRQ

ARO

URO

RRQ

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111. In the H.323 protocol, which of the following messages does the gateway send to the GK for call access authentication?

LPQ

RRQ

ARO

DRQ

112. In the H.323 protocol, which of the following options does not include what we usually call a node?

MCU

Terminal

Gateway

113. Among the six basic request messages of the SIP protocol, which of the following messages is used to cancel the session?

BYE

ACK

INVITE

CANCEL

114. In the SIP protocol, the function of the proxy server is to map the address in the request to zero or more new addresses and return them to the client.

TURE

FALSE

115. In the SIP protocol, which of the following transactions has a three-way handshake mechanism?

lessage

Invite

ACK

Cancel

116. In the integrated construction of conference rooms, try to use direct sound for sound pickup, and use reverberant sound appropriately for sound pickup. It is recommended that the direct sound for pickup is around ().

0.7

0.9

0.8

0.95

117. In a video conferencing system based on the SIP protocol, when the calling party sends a call establishment request, which of the following network elements transmits the information to the called party?

Terminal

MCU

SIP Server

118. When analyzing Wireshark packets, if you want to filter out packets with the source address or destination address 192.168.1.100, which of the following filter condition expressions need to be used to filter?

ip. src==192.168.1.100

ip. addr! ==192.168.1.100

ip. dst==192.168.1.100

ip. addr==192.168.1.100

119. When performing Wireshark packet analysis, if you want to filter out the packets exchanged between terminal T1 (IP address is 192.168.1.100) and SC (IP address is 192.168.1.212), which of the following filter condition expressions can be used?

ip.addr==192.168.1.100 1l ip.addr==192.168.1.212

ip. dst==192.168.1.100 && ip. src==192.168.1.212

ip.addr==192.168.1.100 && ip.addr==192.168.1.212

ip. sre==192.168.1.100 ll ip. dst==192.168.1.212

120. In the registration signaling process, which of the following messages does the terminal initiate to the GK indicating a registration request?

RCF

RRJ

RRQ

MSD

Page 13 of 16

121. Illumination is expressed by the luminous flux received per unit area, expressed in lux (Luz, lx). ()

TURE

FALSE

122. Illumination, color temperature, white balance and color rendering index, these four indicators of light, have an important impact on the actual image effect of video conferencing.

TURE

FALSE

123. In the non-DMZ external network access scenario of a medium-sized co-location network, the server address configured for the external network access soft terminal HK Cloud link is the static mapping IP address or domain name of the intranet SMC public network.

TURE

FALSE

124. The video screen on the terminal appears blurred and stuck during the conference, and the abnormality does not recover.

This phenomenon may be caused by which of the following reasons?

The memory of the server where the MCU is located fails.

There are additional users trying to log in to the terminal web interface.

There is an alarm on the SMC server

Terminal is being upgraded

125. When calling a group, which of the following devices is responsible for querying MCU resources and notifying the relevant MCU to convene a conference?

Terminal

SMC2.0

MCU

126. Automatic noise compensation means that during a call, when there is no audio signal transmission on the line, the receiving end device will automatically add a certain amount of noise to the line to ensure that the sound heard by the listener is more natural and no disconnection occurs. a feeling of.

TURE

FALSE

127. In the dual SCH.460 public-private network traversal scenario, assuming that SC1 is located in the Trust area and SC2 is located in the DKZ area, which one of the following descriptions of the SC 's business IP and management IP configuration is wrong?

SC1’s LAN1 and LAN2 IPs need to be configured as business IPs at the same time.

SC2’s LAN1 and LAN2 IPs need to be configured as business IPs at the same time.

SC1’s LAN1 port IP needs to be configured as the management IP

SC2’s LAN1 port IP needs to be configured as the management IP

128. H. The last number in the 323 protocol is represented by the number 3 ().

Network based on B-ISDN

Based on a network with guaranteed service quality

Network based on packet transmission protocol

GSTN and wireless based networks

129. When analyzing Wireshark packets, if you want to filter out the TCP packets of the device with the source address 192.168.1.100, which of the following excessive conditional expressions can be used to filter?

ip.addr==192.168.1.100 and tcp

ip.addr! =192.168.1.100 and tcp

ip.dst==192.168.1.100 and tcp

ip. src=192.168.1.100 and tcp

130. When GK agrees to the terminal’s registration request, which of the following response messages will be sent?

RCF

RRJ

URJ

ARJ

Page 14 of 16

131. What does the response message "1xx" in the SIP protocol mean?

Indicates that the request message contains a syntax error or the SIP server cannot complete the processing of the request message.

Indicates that the request cannot be fulfilled on any SIP server

Further actions are required to complete the request

Indicates that the request message has been received and is being processed.

132. When accessing a designated conference through IVR, what is the default IVR unified access number?

168

8000

5000

9000

133. During the meeting, the output image on the conference screen appears to be discolored or blurry. Which of the following measures can be taken to solve this problem?

Check the network connection of the terminal at the venue

Check the terminal registration parameters on the SMC

Check whether the MCU’s media resources are sufficient

Check whether the port mode of the display matches the output cable

134. In H.460 networking, at which signaling transmission stage do the transmission keepalive duration, keepalive port, and keepalive fields appear?

In ARQ message

OLC message

In ACF message

In IR message

135. Regarding the description of the application of H.460 protocol in video services, which one is wrong?

The call signaling of public and private network terminals adopts standard

323 call signaling.

After the call is established, a scheduled keepalive packet is required to maintain code stream holes.

After the channel is established, the private network terminal directly exchanges connect messages with the public network terminal to establish a connection.

The TCP channel is established by the private network terminal

136. Which of the following sub-protocols does the H.225 protocol include? (Multiple choice)

RAS

460

239

931

137. Among the H.323 protocols, which of the following protocols are used for terminal control? (Multiple choice)

931

245

265

RAS

138. Which of the following are the main functions of the H.245 protocol? (Multiple choice)

Master-slave decision

Video encoding

Real-time transmission

Capability Negotiation

139. Which of the following registration information does RRQ carry to initiate registration with GK? (Multiple choice)

323ID

IP address

MAC address

Port number

140. Which of the following items must be included in the SIP request message? (Multiple choice)

Header field

Request line

Message body

Response line

Page 15 of 16

141. The SIP protocol is designed based on the C/S architecture. The network server in the SIP protocol usually refers to which of the following servers? (Multiple choice)

Proxy server

Session Server

Redirect server

142. Regarding the relationship between photography and reflected light, how to use the reflected light of interior decoration? (Multiple choice)

If there is too little reflected light, the direct light from the lamp will cause heavy shadows, which will seriously affect the camera effect.

If there is too much reflected light, it will increase the illumination of the display. Qi certified

Large areas of colorful decoration will change the color temperature of reflected light, thus causing colored shadows

If there is too little reflected light, it will increase the illumination of the display. Qi certified

143. The recording and broadcasting server can save the code stream sent by the MCU () (Multiple choice)

Live broadcast

On demand

Upload

Download

144. Which of the following options is the most fundamental difference between human voices? (Multiple choice)

Tone

Volume

Loudness

145. Which of the following methods can be used to capture network data flows? (Multiple choice)

Point-to-point, captured directly on the monitoring computer

Multi-point conference, captured directly on the monitoring computer

Copy the data of the detected port to multiple channels by using the hub.

Capture using the port mirroring function of the switch

146. What messages are included in the RTCP composite message shown in the figure below? (Multiple choice)

APP

SDES

147. Which characteristics of video image color will the color rendering index affect? (Multiple choice)

light and dark

Clarity

Reducibility

Saturation

148. What parts must a transaction contain? (Multiple choice)

ACK

Zero or more provisional responses

A final response

A request message

149. Which of the following descriptions of the RTP protocol are correct? (Multiple choice)

RTP is a transmission protocol for multimedia data streams

RTP applications can be carried on either the TCP protocol or the UDP protocol

RTP can provide quality of service monitoring and transfer information about participants in the media session

RTP applications can only be carried over UDP protocol

150. Which of the following video resolutions meet the aspect ratio requirement of 16:9? (Multiple choice)

720*480

1024*768

1280*720

1920*1080

Page 16 of 16

151. Which of the following are types of RTCP messages? (Multiple choice)

BYE

UDP

152. Which of the following color sampling methods has a compression rate of 50%? (Multiple choice)

4:1:1

4:4:4

4:2:0

4:2:2

153. Which of the following message interactions are included in the process of the terminal using the H.323 protocol to make calls through numbers? (Multiple choice)

ACF

Connect

Setup

ARQ

154. The enterprise A administrator is planning an enterprise conference system (not involving the DMZ area). Considering that the maximum capacity of the conference room must reach 1099, which of the following deployment forms can he choose? (Multiple choice)

Medium-sized networking in the form of bare metal

A medium-sized virtualized network with 8 logical cores, 16G memory, and 400G disk.

Software-based medium-sized networking

Cloud Link Edge 1000

155. Cloud The typical networking of Link Edge1000 intranet contains hard terminal 1 (only supports H.323) and hard terminal 2 (supports H.323/SIP). In a normal multi-point conference scenario, the following is about network element data and signaling. Which flow descriptions are correct? (Multiple choice)

When the conference is in progress, the system administrator performs signaling diagnosis on the SC and obtains the package Cloud the MCU side IP is 127.0.0.1

Hard terminal 1 sends SIP signaling flow to SC

Cloud MCU will send INVITE message to SC

Hard terminal 2-way Cloud NCU sends voice/video stream

156. Which of the following functions is not provided by H.245 protocol? (Multiple choice)

Video encoding

Capability Negotiation

Real-time transmission

Media Control

HCIP-Collaboration V3.0 H11-861_V3.0 Exam Free Dumps

HCIP-Collaboration V3.0 H11-861_V3.0 Exam Free Dumps

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