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Huawei H11-861_V4.0 Exam Syllabus Topics:
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NEW QUESTION # 23
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 # 24
Which of the following statements are true about the SC cluster reconstruction deployment scenario? (Choose all that apply.)
- A. 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.
- 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 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.
Answer: A,C,D
Explanation:
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.
NEW QUESTION # 25
Which of the following is the format of the configuration file exported from the CloudRSE web interface?
- A. .xml
- B. .yml
- C. .bin
- D. .txt
Answer: A
Explanation:
The CloudRSE web interface exports its configuration in XML format, producing a .xml file for import or backup.
NEW QUESTION # 26
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 # 27
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: C
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 # 28
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 H.225 call signaling interaction between T1 and T2 must pass through the SC.
- C. Endpoint control signaling involved in this process mainly includes H.225 RAS, H.225 Call Signaling, and H.245.
- D. In this process, the H.225 RAS signaling interaction between T1 and T2 must pass through the SC.
- E. In this process, the media stream must be directly transmitted between T1 and T2.
Answer: C,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 # 29
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. Port number
- C. H.323 ID
- 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 # 30
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 # 31
The main functions of H.245 include capability negotiation, video encoding, and master-slave determination.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 32
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 # 33
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 # 34
Which of the following header fields is used to indicate the route of a response message?
- A. From
- B. Via
- C. To
- D. Contact
Answer: B
Explanation:
The Via header records each hop a request takes and is used to route the corresponding response back along the same path.
NEW QUESTION # 35
Which of the following statements are true about the multi-level protection of the collaboration hardware platform? (Choose all that apply.)
- A. Power supply backup is provided.
- B. Disk backup (RAID) is provided.
- C. Fan backup is provided.
- D. Network port 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 # 36
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 # 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. The intranet SC cluster supports two distribution modes: single-active distribution and multi-active distribution.
- 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.
Answer: A,B,C,E
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
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. SMC
- C. CloudRSE
- D. VP9860
Answer: C,D
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 # 39
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.)
Answer:
Explanation:
2
NEW QUESTION # 40
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. An audio loop exists. The external audio device feeds back the sound from the endpoint output port to the endpoint input port.
- B. The microphone is too close to the speaker.
- C. The endpoint's input volume is lower than the minimum energy threshold required for echo cancellation.
- D. Another participant whose speaker is turned off is at the local site.
Answer: A,B,C
Explanation:
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.
NEW QUESTION # 41
Which of the following MCU debugging commands is used to display detailed information about a specified conference?
- A. conf get strmInfo [confnum]
- B. conf get [confNum]
- C. conf get csdchaninfo [confnum]
- D. conf get iaures [confNum]
Answer: B
Explanation:
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).
NEW QUESTION # 42
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 # 43
By default, the SMC provides six user roles. Default permissions of each user role can be modified or deleted based on site requirements.
- A. FALSE
- B. TRUE
Answer: A
Explanation:
The SMC indeed provides six built-in user roles (system administrator, security administrator, security auditor, program administrator, conference administrator, and common user), but their default permissions are fixed and cannot be modified or removed.
NEW QUESTION # 44
At an SMC video conferencing system site, the customer wants to deploy a conferencing system with converged firewall ports, with a planned DMZ. The SC1 is deployed on the intranet and SC2 is deployed in the DMZ. In this case, which of the following deployment modes is the most suitable one for SC1 and SC2?
- A. SC1 is the proxy SC, and SC2 is the registration SC.
- B. SC1 and SC2 are both registration SCs.
- C. SC1 and SC2 are both proxy SCs.
- D. SC1 is the registration SC, and SC2 is the proxy SC.
Answer: D
Explanation:
Deploying SC1 as the registration SC on the intranet allows internal endpoints to register directly, while placing SC2 as a proxy SC in the DMZ handles external signaling traversal and secures the demilitarized zone.
NEW QUESTION # 45
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