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

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

On first CLI login, you must change the default admin password to secure the SC; other network settings can be configured as needed afterward.

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.

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

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 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.

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.

The Via header records each hop a request takes and is used to route the corresponding response back along the same path.

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.

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.

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 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.