B

The provisioned video bandwidth amounts always include room for the audio payload. The payload for G.711 uses 64 kbps of bandwidth, leaving 320 kbps for the video payload.

A

Cisco recommends adding 20 percent to the requested video bandwidth amount to provide a safe buffer for overhead. 256 kbps * 1.20 = 307.2 kbps reservation.

A

H.263 is the lowest-common-denominator video codec between an SCCP and H.323 device. If two SCCP devices communicate, they will attempt to use the newer (and more efficient) H.264 codec.

B

When using the nongatekeeper-controlled intercluster trunks, the only choice you will have for call admission control is the CallManager Location feature. By placing the local IP Phones and intercluster trunk in different locations, you can control how much bandwidth CallManager allows over the trunk.

B

Within a cluster, CallManager locations control the WAN bandwidth used. This is typically done in a centralized call-processing environment.

B

The H.320 standard is used to stream video over an ISDN network. To communicate with this standard, you must employ a video gateway.

D

Videoconferencing requires you use a multipoint control unit (MCU) to mix the signals. SCCP clients can handle a video call (two users), but cannot handle a conference (three users or more).

C

Far-end camera control (FECC) is an H.323 capability allowing you to remotely control a variety of settings on a video camera.

D

The Cisco proprietary wideband codec offers impeccable quality, but is considered a "LAN-only" protocol due to the whopping 7 Mbps it consumes.

C

One of the major features supported by the Cisco CallManager 4.0 release was video (along with the new IP telephony security structure).