2026年最新のH11-861_V4.0問題集レビュー専門クイズ学習材料 [Q26-Q46]

2026年最新のH11-861_V4.0問題集レビュー専門クイズ学習材料

H11-861_V4.0テスト準備トレーニング練習試験問題練習テスト

質問 # 26
FILL in BLANK
Assume endpoints T1 and T2 are registered with the same SC node zone (signaling routing is disabled on the SC). After T1 calls the number of T2 using H.323, T1 and T2 communicate with each other. In this process, a total of ____________ TCP connection(s) need to be established between T1 and T2. (Enter an Arabic numeral.)

正解：

解説：
2

質問 # 27
The Call priority protocol on the Box 310 endpoint is set to SIP by default.

A. TRUE
B. FALSE

正解：B

質問 # 28
FILL BLANK
In a SIP-only multipoint conference, when a participant sends the presentation, the system uses the ____________ protocol for presentation. (Enter the abbreviation.)

正解：

解説：
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.

質問 # 29
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

正解：B

解説：
A SIP response start line is a Status-Line containing the SIP version, status code, and reason phrase - not the method and Request-URI.

質問 # 30
Which of the following statements are true about the SC cluster reconstruction deployment scenario? (Choose all that apply.)

A. If the number of SIP endpoints is much greater than that of H.323 endpoints, an SC cluster can be deployed for SIP endpoint access. The non-cluster registration SC is reserved for H.323 endpoint access.
B. If the number of SIP endpoints is much greater than that of H.323 endpoints, an SC cluster can be deployed for SIP and H.323 endpoint access.
C. If the number of SIP endpoints is far less than that of H.323 endpoints, you are advised not to deploy the SC cluster.
D. If the number of connected extranet soft clients is greater than 2000, you are advised to reconstruct a non-cluster proxy SC into a proxy SC cluster.

正解：A、C、D

解説：
When SIP endpoints greatly outnumber H.323 endpoints, you deploy an SC cluster to serve the SIP devices while leaving a standalone SC for the H.323 endpoints.
If SIP registrations are much fewer than H.323 registrations, clustering the SC for SIP isn't recommended, as the scale doesn't justify the added complexity.
A proxy SC supports up to 2,000 external soft-client registrations; if you exceed this, you should rebuild it as a proxy-SC cluster to handle the extra load.

質問 # 31
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

正解：B

解説：
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.

質問 # 32
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. 557 Mbit/s
B. 238 Mbit/s
C. 446 Mbit/s
D. 600 Mbit/s

正解：D

解説：
4CIF (704×576) at 30 fps gives 704 × 576 × 30 ≈ 12.17 million pixels/s. At 48 bits per pixel, that's 12.17 M × 48 ≈ 584 Mbit/s, which is nearest to 600 Mbit/s.

質問 # 33
Which of the following statements is false about SVC intelligent forwarding conferences?

A. In an SVC intelligent forwarding conference, the Box 310/610 can join a conference with the SVC capability.
B. In an SVC intelligent forwarding conference, the video resolution viewed by each participant varies depending on the endpoint bandwidth and capability of SVC participants.
C. In an SVC intelligent forwarding conference, an SVC endpoint can send a maximum of six channels of video streams to the MCU.
D. When the MCU works in SFU mode, the SVC intelligent forwarding conference is supported.

正解：C

解説：
In an SVC intelligent forwarding conference, SVC endpoints transmit up to four video channels (base plus enhancement layers) to the MCU for forwarding; they do not send six channels.

質問 # 34
When the SMC is used to provision system administrator users, each user can be bound to an endpoint that is used as the conference joining device of the user.

A. TRUE
B. FALSE

正解：B

解説：
System administrator accounts in the SMC are management-only and do not support binding to endpoints for use as conference-joining devices; endpoint binding applies only to conference user or room accounts.

質問 # 35
Which of the following conference parameters need to be obtained by engineers when locating conference faults on the SMC video conferencing system? (Choose all that apply.)

A. Conference video protocol
B. Conference resolution and frame rate
C. Conference type
D. Conference bandwidth

正解：A、B、C、D

解説：
When troubleshooting conferences, engineers must know the video protocol in use, the conference type, the resolution and frame rate being delivered, and the bandwidth allocation - each of these parameters directly impacts session behavior and helps pinpoint faults.

質問 # 36
The main functions of H.245 include capability negotiation, video encoding, and master-slave determination.

A. TRUE
B. FALSE

正解：B

質問 # 37
A company deployed a new Huawei video conferencing system last year (conference rooms are managed by organization). Now, the company plans to add 50 Box 610 devices to meet service requirements. In addition, the company plans to change the conference room management mode to area management in the SMC system to meet their new conference room management requirements. In this case, before provisioning new conference rooms, you can directly click Organization Management to switch to Area Management on the SMC web interface.

A. TRUE
B. FALSE

正解：B

解説：
You cannot directly switch from organization to area management when existing conference rooms are bound under organization management; you must first complete the migration process (such as unbinding or reassigning rooms) before the switch becomes available.

質問 # 38
In a Huawei video conference, which of the following may cause echoes or even high-pitched noises when the local participant speaks? (Choose all that apply.)

A. The microphone is too close to the speaker.
B. Another participant whose speaker is turned off is at the local site.
C. The endpoint's input volume is lower than the minimum energy threshold required for echo cancellation.
D. An audio loop exists. The external audio device feeds back the sound from the endpoint output port to the endpoint input port.

正解：A、C、D

解説：
If the input volume falls below the echo canceller's detection threshold, the device can't identify and suppress return audio, leading to echoes or squealing.
An audio loop, where output is fed back into the input, directly causes echo and feedback noise.
Placing the microphone too close to the speaker allows direct pickup of its output, resulting in echo and potential high-pitched feedback.

質問 # 39
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

正解：C、D

解説：
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.

質問 # 40
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. sc
C. vcexpert
D. root

正解：A

解説：
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.

質問 # 41
Which of the following MCU debugging commands is used to display detailed information about a specified conference?

A. conf get csdchaninfo [confnum]
B. conf get strmInfo [confnum]
C. conf get [confNum]
D. conf get iaures [confNum]

正解：C

解説：
The generic conf get [confNum] command retrieves comprehensive details for the specified conference, whereas the other commands show only specific aspects (IAU resources, stream info, or channel info).

質問 # 42
Which of the following header fields is used to indicate the route of a response message?

A. To
B. From
C. Contact
D. Via

正解：D

解説：
The Via header records each hop a request takes and is used to route the corresponding response back along the same path.

質問 # 43
In a SIP multipoint conference, if BFCP Trans Type is set to TCP on the MCU, the BFCP communication protocol must be set to TCP on the endpoint.

A. TRUE
B. FALSE

正解：A

解説：
BFCP transport must match between the MCU and endpoints; if the MCU is configured for TCP, endpoints must also use TCP for BFCP.

質問 # 44
Assume the SMC system administrator wants to remotely log in to the SC in SSH mode. Which of the following is the default port for the admin user to log in to the SC?

A. 0
B. 1
C. 2
D. 3

正解：B

解説：
SSH uses port 22 by default for secure CLI access to the SC admin account.

質問 # 45
Which of the following statements are true about the intranet-only SC cluster network? (Choose all that apply.)

A. The intranet SC cluster supports two distribution modes: single-active distribution and multi-active distribution.
B. The intranet registration SC cluster provides only SIP registration.
C. 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.
D. 323 endpoints must register with a standalone SC when an intranet-only cluster is used.
E. A standalone SC should be deployed to provide registration services specifically for H.323 endpoints.

正解：A、B、C、E

解説：
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.

質問 # 46
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Huawei H11-861_V4.0 認定試験の出題範囲：

トピック	出題範囲
トピック 1	Integration and Application: This section targets Solution Developers and System Integrators involved in integrating IIoT systems with existing enterprise applications, cloud platforms, and analytics tools for data-driven decision making.
トピック 2	Operations and Maintenance: This domain measures skills of Operations Engineers and Network Administrators in monitoring IIoT systems, troubleshooting network and device issues, and maintaining overall system health and performance.
トピック 3	Technical Concepts: This section measures skills of Industrial IoT Engineers and Network Engineers and covers fundamental technical principles relevant to Industrial Internet of Things (IIoT), including architectures, protocols, data management, and integration technologies.
トピック 4	Cybersecurity and Risk Management: This section assesses the expertise of Security Engineers and Compliance Officers in securing IIoT environments by applying security frameworks, identity and access management, threat detection, and risk mitigation strategies.
トピック 5	Implementation and Configuration: This domain targets IIoT Solution Architects and System Integrators, focusing on configuring IoT devices, network connectivity, communication protocols, and edge computing components used in IIoT deployments.