Huawei H11-861_V4.0 HCIP-Collaboration V4.0 Exam Practice Test

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.

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.

H.225 RAS messages (registration, admission, status) always traverse the SC (gatekeeper) for endpoints in the same zone.

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.

Dual-channel PCM at 8 kHz with 8 bits per sample yields 8,000 × 8 = 64 kbit/s per channel; two channels give 64 × 2 = 128 kbit/s.

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.

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.

The mswt-media config_info command displays static media configuration parameters; querying actual media-exchange status requires the mswt-media exchange_info command.

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.

H.323 endpoints must register with a standalone SC when an intranet-only cluster is used.

Deploying an intranet registration SC cluster is recommended when there are large numbers of SIP hard or soft endpoints.

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

The mswt-media allflow command reports the bit rates of all ongoing media streams on the CloudMCU; it does not display conference/participant counts, system info, or logs.

Alerting is part of the H.225 call-signaling sequence, not the RAS interface, so it is not used over the RAS channel.

The SMC’s service provisioning functions include both single-item and batch modes for personal VMR assignment, whether you’re binding VMRs to conference rooms or to individual users, you can provision them one by one or import a list and provision them in bulk.

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.

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.

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.

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.

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.

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.