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Practice with these H11-861_V4.0 dumps Certification Sample Questions
NEW QUESTION # 30
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. Disk backup (RAID) 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 # 31
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. 600 Mbit/s
- B. 557 Mbit/s
- C. 238 Mbit/s
- D. 446 Mbit/s
Answer: A
Explanation:
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.
NEW QUESTION # 32
The MCU debugging command "mswt-media config_info" is used to query the configuration information about media exchange.
- A. FALSE
- B. TRUE
Answer: A
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 # 33
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
Answer: A
Explanation:
BFCP transport must match between the MCU and endpoints; if the MCU is configured for TCP, endpoints must also use TCP for BFCP.
NEW QUESTION # 34
The main functions of H.245 include capability negotiation, video encoding, and master-slave determination.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 35
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. FALSE
- B. TRUE
Answer: A
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 # 36
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. Extended mode 1
- B. Extended mode 3
- C. Single-screen
- 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 # 37
Which of the following is the format of the configuration file exported from the CloudRSE web interface?
- A. .bin
- B. .txt
- C. .xml
- D. .yml
Answer: C
Explanation:
The CloudRSE web interface exports its configuration in XML format, producing a .xml file for import or backup.
NEW QUESTION # 38
Assume endpoints T1 and T2 are registered with the same SC node zone. After T1 calls the number of T2 using H.323, T1 and T2 communicate with each other. Which of the following statements are true about the call process? (Choose all that apply.)
- A. 225 RAS messages (registration, admission, status) always traverse the SC (gatekeeper) for endpoints in the same zone.
- B. In this process, the media stream must be directly transmitted between T1 and T2.
- C. In this process, the H.225 call signaling interaction between T1 and T2 must pass through the SC.
- D. In this process, the H.225 RAS signaling interaction between T1 and T2 must pass through the SC.
- E. Endpoint control signaling involved in this process mainly includes H.225 RAS, H.225 Call Signaling, and H.245.
Answer: B,D,E
Explanation:
RTP media is exchanged directly between T1 and T2 once the call is established.
The call control sequence involves H.225 RAS (registration/admission), H.225 call signaling (SETUP/CONNECT), and H.245 control for capabilities.
NEW QUESTION # 39
In an SVC hybrid conference (scheduled on the SFU and IAU), when an AVC participant views continuous presence of an SVC participant, dynamic codec resources on the IAU are consumed. When an AVC participant views continuous presence of other AVC participants, no dynamic codec resources are consumed.
- A. TRUE
- B. FALSE
Answer: A
Explanation:
Displaying SVC streams to AVC endpoints requires IAU decoding and encoding, consuming dynamic codec resources; forwarding native AVC streams uses SFU without engaging IAU resources.
NEW QUESTION # 40
During a point-to-point call between different GKs, the local GK sends an LRQ request to the neighboring GK to query the information about the called node.
- A. TRUE
- B. FALSE
Answer: A
Explanation:
In H.323, when a gatekeeper needs to locate an endpoint outside its zone, it issues a LocationRequest (LRQ) to the neighboring gatekeeper to retrieve the called party's address.
NEW QUESTION # 41
Which of the following statements is true about image sampling?
- A. 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.
- B. For human eyes, the Y component in YUV is the most important. Therefore, downsampling can be performed on the UV components.
- C. RGB components have weak correlation, which is unfavorable for video image compression. Therefore, RGB is often used for image display.
- D. The YUV 4:2:0 sampling mode is half the size of the YUV 4:4:4 sampling mode.
Answer: D
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 # 42
In a hybrid multistream conference, SVC and AVC endpoints can join the conference at the same time. By default, the system provides the same continuous presence experience as the AVC conference.
- A. TRUE
- B. FALSE
Answer: A
Explanation:
In a hybrid multistream conference, the MCU's built-in media resources run in dual-mode (AVC+SVC) intelligent adaptation by default, and when SVC and AVC participants view each other, the system automatically delivers the same continuous-presence layout and experience as in an AVC (universal transcoding) conference.
NEW QUESTION # 43
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: C,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 # 44
Which of the following operations needs to be performed when you log in to the SC as the admin user using the CLI for the first time?
- A. Change the default password.
- B. Configure the SC IP address.
- C. Delete user configuration.
- D. Configure a default route for SC.
Answer: A
Explanation:
On first CLI login, you must change the default admin password to secure the SC; other network settings can be configured as needed afterward.
NEW QUESTION # 45
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
Answer: D
Explanation:
SSH uses port 22 by default for secure CLI access to the SC admin account.
NEW QUESTION # 46
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. FALSE
- B. TRUE
Answer: A
Explanation:
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.
NEW QUESTION # 47
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