H11-861_V4.0 Huawei HCIP-Collaboration V4.0 Free Practice Exam Questions (2025 Updated)

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

In SIP-only multipoint conferences, presentation content is delivered using the Binary Floor Control Protocol (BFCP), which handles floor control and content distribution.

The CloudRSE web interface exports its configuration in XML format, producing a .xml file for import or backup.

The H.26x family (H.263, H.264/AVC, H.265/HEVC) was designed with low-latency, real-time encoding/decoding in mind (ideal for videoconferencing and streaming calls) whereas MPEG-1/2/4 were originally optimized for file-based storage (VCD/DVD), broadcast and progressive streaming. Modern deployments often blend these. For example, using H.265 for both live calls and high-efficiency streaming and newer standards (like H.266/VVC) are now emerging.

The Via header tracks each hop of the request and is used to guide the response back along the same path.

The System Administrator role grants full privileges for system configuration tasks and for managing administrator user accounts; it does not include conference or room management functions.

The IdeaManager platform is designed for large-scale IdeaHub device management, offering centralized control, remote shutdown scheduling, and batch over-the-air upgrades for fleets of up to millions of devices, including 10,000 ES2 Plus units.

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.

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.

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.

The Diagnostic Information Collection feature in the SMC web UI gathers logs and status from managed hardware network elements, such as SMC-connected SC nodes, RSE8800 recording engines, and Box 310 endpoints, by selecting their device types in Maintenance > Diagnostic Info Collection. It does not support collecting diagnostic data from software clients like Huawei CloudLink.

The actual bandwidth exceeds the nominal conference bandwidth because of protocol overhead (both IP and UDP headers), signaling exchanges, and any retransmissions of lost packets, all of which consume additional capacity.

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.

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.

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.

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).