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H11-861_V4.0
HCIP-Collaboration V4.0 Questions and Answers

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Questions # 1:

Which of the following statements are true about the multi-level protection of the collaboration hardware platform? (Choose all that apply.)

Options:

Network port backup is provided.

Fan backup is provided.

Power supply backup is provided.

Disk backup (RAID) 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.

Questions # 2:

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.

Options:

TRUE

FALSE

Answer

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.

Questions # 3:

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.

Options:

TRUE

FALSE

Answer

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.

Questions # 4:

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

Options:

conf get iaures [confNum]

conf get strmInfo [confnum]

conf get csdchaninfo [confnum]

conf get [confNum]

Answer

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).

Questions # 5:

In the collaboration solution architecture, which of the following network elements are deployed at the media processing layer? (Choose all that apply.)

Options:

SMC

VP9860

CloudRSE

Box 310

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.

Questions # 6:

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

Options:

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.

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.

If the number of SIP endpoints is far less than that of H.323 endpoints, you are advised not to deploy the SC cluster.

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.

Answer

B, 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.

Questions # 7:

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?

Options:

238 Mbit/s

557 Mbit/s

446 Mbit/s

600 Mbit/s

Answer

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.

Questions # 8:

FILL BLANK

In an SVC intelligent forwarding conference, if an SVC participant requires to view 1080p video, the bandwidth of the SVC participant must be at least ____________ Mbit/s. (Enter an Arabic numeral.)

Options:

Answer

Answer:

Explanation

In an SVC intelligent forwarding conference, delivering 1080p (1920×1080) at 30 fps requires approximately 6 Mbit/s of bandwidth to carry the base and enhancement layers needed for full-HD reconstruction.

Questions # 9:

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.

Options:

TRUE

FALSE

Answer

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.

Questions # 10:

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.

Options:

TRUE

FALSE

Answer

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.

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