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Huawei H11-861_V4.0 PDF Questions - Exceptional Practice To HCIP-Collaboration V4.0
Huawei H11-861_V4.0 Exam Syllabus Topics:
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NEW QUESTION # 25
The MCU debugging command "mswt-media config_info" is used to query the configuration information about media exchange.
- A. TRUE
- B. FALSE
Answer: B
Explanation:
The mswt-media config_info command displays static media configuration parameters; querying actual media-exchange status requires the mswt-media exchange_info command.
NEW QUESTION # 26
The Record-Route header field indicates the route of a request.
- A. TRUE
- B. FALSE
Answer: A
Explanation:
The Record-Route header is inserted by proxies to advertise their desired route for subsequent requests in the dialog.
NEW QUESTION # 27
In the encrypted conference scenario, the SIP transmission type must be set to TLS on both the MCU and endpoint.
- A. TRUE
- B. FALSE
Answer: A
Explanation:
To secure SIP signaling in an encrypted conference, both the MCU and endpoints must use TLS as the transport for SIP messages.
NEW QUESTION # 28
The SMC system O&M engineer John wants to start and stop the SC database (version V600R019C10SPCb20 or later). Which of the following user roles can be used to perform such operations on the database?
- A. gauss
- B. vcexpert
- C. sc
- D. root
Answer: A
Explanation:
The SC's underlying database is a GaussDB cluster, and only the dedicated database OS user (gauss) has the necessary permissions to start and stop it using the GaussDB control utilities.
NEW QUESTION # 29
By default, a single registration SC server supports a maximum of 20,000 registered devices.
- A. TRUE
- B. FALSE
Answer: A
Explanation:
By default, a Registration SC server supports up to 20,000 registered devices, as specified in the Huawei SC product specifications.
NEW QUESTION # 30
In the non-DMZ public-private network traversal scenario (small- and medium-sized network where the SMC and SC are co-deployed), you need to configure the LAN2 port of the SC as the default routing port.
- A. TRUE
- B. FALSE
Answer: B
Explanation:
In a co-deployed small/medium network, LAN1 is used for the default gateway to the SMC/public network; LAN2 serves the private segment, so you do not set LAN2 as the default routing port.
NEW QUESTION # 31
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
Answer: B
Explanation:
The IdeaManager platform is designed for large-scale IdeaHub device management, offering centralized control, remote shutdown scheduling, and batch over-the-air upgrades for fleets of up to millions of devices, including 10,000 ES2 Plus units.
NEW QUESTION # 32
Which of the following statements are true about the multi-level protection of the collaboration hardware platform? (Choose all that apply.)
- A. Disk backup (RAID) is provided.
- B. Network port backup is provided.
- C. Power supply backup is provided.
- D. Fan backup is provided.
Answer: A,B,C,D
Explanation:
The collaboration hardware platform implements full redundancy: network ports, fans, power supplies, and disks (RAID) - to ensure high availability and fault tolerance.
NEW QUESTION # 33
In the collaboration solution architecture, which of the following network elements are deployed at the media processing layer? (Choose all that apply.)
- A. Box 310
- B. CloudRSE
- C. VP9860
- D. SMC
Answer: B,C
Explanation:
The media processing layer handles core media functions such as audio/video encoding, decoding, mixing, recording, and streaming. The VP9860 is Huawei's MCU media server - deployed precisely in this media processing (media switching) layer to provide high-density encoding/decoding and mixing capabilities. CloudRSE (Cloud Recording & Streaming Engine) delivers recording and streaming services, which are also key media processing functions within this layer.
NEW QUESTION # 34
FILL in BLANK
The stream transmission speed of a digitalized 1080p 60 fps analog TV signal is around ____________ Mbit/s. (Assume that a pixel is 24-bit and enter an integer.)
Answer:
Explanation:
2986
Explanation:
Uncompressed 1080p at 60 fps has 1920 × 1080 = 2,073,600 pixels per frame. At 24 bits per pixel, that's 2,073,600 × 24 = 49,766,400 bits per frame. Multiplied by 60 fps gives 2,985,984,000 bit/s, which is approximately 2986 Mbit/s.
NEW QUESTION # 35
Which of the following is the maximum number of cascaded conference levels supported by the SMC?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
Huawei's SMC supports cascading up to four conference levels for multi-level conferencing, ensuring efficient management and control across up to four tiers.
NEW QUESTION # 36
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.
- A. TRUE
- B. FALSE
Answer: B
Explanation:
While SIP is transport-agnostic and can run over UDP, TCP, TLS, or SCTP, UDP remains the predominant transport - SCTP is not the most commonly used.
NEW QUESTION # 37
Which of the following statements are true about the intranet-only SC cluster network? (Choose all that apply.)
- A. The intranet registration SC cluster provides only SIP registration.
- B. If a large number of SIP hard endpoints or soft clients are located on the intranet, you can deploy a registration SC cluster on the intranet.
- C. A standalone SC should be deployed to provide registration services specifically for H.323 endpoints.
- D. The intranet SC cluster supports two distribution modes: single-active distribution and multi-active distribution.
- E. 323 endpoints must register with a standalone SC when an intranet-only cluster is used.
Answer: A,B,C,D
Explanation:
Deploying an intranet registration SC cluster is recommended when there are large numbers of SIP hard or soft endpoints.
Explanation:
An intranet-only SC cluster handles SIP registrations exclusively, offloading SIP endpoint load.
The cluster can be deployed in single-active or multi-active distribution modes for flexibility and redundancy.
NEW QUESTION # 38
The start line of a SIP response consists of three parts: method (Method), request URI (Request-URI), and protocol version (SIP-VERSION).
- A. TRUE
- B. FALSE
Answer: B
Explanation:
A SIP response start line is a Status-Line containing the SIP version, status code, and reason phrase - not the method and Request-URI.
NEW QUESTION # 39
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
Answer: A
Explanation:
The Huawei Video Conferencing Desktop Client (VDC) offers comprehensive conference-control capabilities, allowing you to tailor control settings and define custom shortcut keys with descriptive labels for streamlined operation.
NEW QUESTION # 40
Which of the following statements is true about image sampling?
- A. RGB components have weak correlation, which is unfavorable for video image compression. Therefore, RGB is often used for image display.
- B. The YUV 4:2:0 sampling mode is half the size of the YUV 4:4:4 sampling mode.
- C. The transmission rate of video data using YUV 4:2:0 is 140 Mbit/s. If the 4:2:2 mode is used, the transmission rate required by the video is 175 Mbit/s.
- D. For human eyes, the Y component in YUV is the most important. Therefore, downsampling can be performed on the UV components.
Answer: B
Explanation:
YUV 4:2:0 subsamples chroma by a factor of two in both horizontal and vertical dimensions, reducing total data to half of the full-resolution YUV 4:4:4 format.
NEW QUESTION # 41
An endpoint is disconnected from a conference due to a power failure. After the endpoint is powered on again, it is not called to the conference again, and the SMC does not detect that the endpoint is disconnected. The SMC O&M engineer finds that this fault is caused by the "Timeout for hang-up upon no code streams" parameter on the CloudMCU. Which of the following parameter values may cause this fault? (Choose all that apply.)
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A,D
Explanation:
Setting the timeout to 0 or -1 disables the automatic hang-up when no media streams are received, so the MCU never tears down the call and SMC doesn't detect the endpoint has dropped.
NEW QUESTION # 42
Which of the following registration information types are carried in an RRQ to register with the GK? (Choose all that apply.)
- A. IP address
- B. H.323 ID
- C. Port number
- D. MAC address
Answer: A,B,C
Explanation:
An RRQ conveys the endpoint's network address information (IP address and associated port number) along with its H.323 ID alias to the gatekeeper for registration.
NEW QUESTION # 43
The virtual conference ID range of the SMC video conferencing system is set to 9100000 to 9299999. Which of the following may be the ID of a new common conference (that is not bound to a VMR)? (Choose all that apply.)
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A,C
Explanation:
Only IDs within the configured range 9100000-9299999 are valid for new common conferences; 9288889 and 9100009 fall in this range, whereas 9688889 and 9300001 do not.
NEW QUESTION # 44
FILL BLANK
In a SIP-only multipoint conference, when a participant sends the presentation, the system uses the ____________ protocol for presentation. (Enter the abbreviation.)
Answer:
Explanation:
BFCP
Explanation:
In SIP-only multipoint conferences, presentation content is delivered using the Binary Floor Control Protocol (BFCP), which handles floor control and content distribution.
NEW QUESTION # 45
When Dual-screen mode is set to Manual for the Box 310/610, which of the following options can be selected for Output port policy? (Choose all that apply.)
- A. Single-screen
- B. Extended mode 3
- C. Extended mode 1
- D. Extended mode 2
Answer: A,C,D
Explanation:
In Manual dual-screen mode on the Box 310/610, you may select Single-screen or one of the two Extended modes (Extended mode 1 or Extended mode 2); Extended mode 3 is not supported.
NEW QUESTION # 46
Which of the following NEs' information cannot be collected using the diagnostic information collection function (Maintenance > Diagnostic Info Collection) on the SMC web interface?
- A. RSE8800
- B. HW CloudLink
- C. Box 310
- D. SMC
Answer: C
Explanation:
The Diagnostic Information Collection feature in the SMC web UI gathers logs and status from managed hardware network elements, such as SMC-connected SC nodes, RSE8800 recording engines, and Box 310 endpoints, by selecting their device types in Maintenance > Diagnostic Info Collection. It does not support collecting diagnostic data from software clients like Huawei CloudLink.
NEW QUESTION # 47
An AVC conference is scheduled on the CloudMCU (working in SFU mode) and VP9850 (working in IAU mode). After the conf get strmInfo 41353221 command is executed on the CloudMCU, the following information is displayed:
Which of the following is the video stream number generated after the IAU decodes and re-encodes the three video streams of Site (16), Site (17), and Site (18)?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
In SFU+IAU mode, the IAU's re-encoded (decoded and encoded) streams are identified by the MpAdaptStrmNo value under Site(18). In the output, MpAdaptStrmNo[2710124429803] is the stream number carrying all three re-encoded video channels.
NEW QUESTION # 48
When the MCU has two service network ports, you can use the IP address bound to bond0 or bond1 to access the MCU web interface.
- A. TRUE
- B. FALSE
Answer: B
Explanation:
The MCU's web management interface listens only on the service-network bond (bond0); the second port group (bond1) is dedicated to media traffic and does not provide web access.
NEW QUESTION # 49
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