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

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.

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.

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.

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.

A SIP response start line is a Status-Line containing the SIP version, status code, and reason phrase - not the method and Request-URI.

In an SVC intelligent forwarding conference, SVC endpoints transmit up to four video channels (base plus enhancement layers) to the MCU for forwarding; they do not send six channels.

With signaling routing enabled on the SC, both the H.225 call signaling and the H.245 control channel are each split into two TCP legs (T1→SC and SC→T2), resulting in 2 × 2 = 4 TCP connections.

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.

Uncompressed 1080p at 60 fps has 1920 × 1080 = 2,073,600 pixels per frame. At 24 bits per pixel, that’s 2,073,600 × 24 = 49,766,400 bits per frame. Multiplied by 60 fps gives 2,985,984,000 bit/s, which is approximately 2986 Mbit/s.

The collaboration hardware platform implements full redundancy: network ports, fans, power supplies, and disks (RAID) - to ensure high availability and fault tolerance.

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.

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.

When troubleshooting conferences, engineers must know the video protocol in use, the conference type, the resolution and frame rate being delivered, and the bandwidth allocation - each of these parameters directly impacts session behavior and helps pinpoint faults.

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.

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.

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.

To secure SIP signaling in an encrypted conference, both the MCU and endpoints must use TLS as the transport for SIP messages.

In a small- and medium-sized deployment with SMC and SC co-deployed on the same server, a single device supports up to 1,000 concurrent calls.