H11-861-ENU

() methods are available for sites to join an IVR conference.A . 1B . 2C . 3D . 4View AnswerAnswer: C

Audio Enhancement Technologie-Jitter Buffer, use a human intervention signal wave to remove echo signals while retaining normal audio signals to improve the voice quality of a telephone call. ()A . TRUEB . FALSEView AnswerAnswer: B

The LAN2 port of terminals is used to ().A . Implement main services.B . Log in to the video terminal to capture packets.C . Take over the service on the LAN1 port if the LAN1 port fails to work.D . Share loads with the LAN1 port.View AnswerAnswer: C

The recording request from a video terminalis sent to the MCU and the MCU controls the recording. ()A . TRUEB . FALSEView AnswerAnswer: B

Over an H.460 network, private video terminals connect to () in the SETUP phase,A . TSsB . GKsC . Public network terminalsD . MCUsView AnswerAnswer: A

MSDA is Master Slave Determination Acknowledge (The carried Master or Slave flag refers to the status of the local endpoint.) ( )A . TRUEB . FALSEView AnswerAnswer: B

Video compression standards that are widely used currently include the H.261, H.263, and H.264 of the ITU and MPEG-1, MPEG-2, and MPEG-4 of the ISO/IEC. The H.26x series standards are used in real-time video communication. The MPEG series standards are used in video storage (on DVDs), video broadcast, and video...

Video compression includes intraframe compression (I-frame) and interframe compression (P-frame). H.26x, MPEG-2, and MPEG-4 support intraframe or interframe compression. ( )A . TRUEB . FALSEView AnswerAnswer: A

T.140 Caption can be sent or received by only endpoints that support T.140 captions. ()A . TRUEB . FALSEView AnswerAnswer: A

One conference allows for up to () groups of continuous presence.A . 1B . 12C . 24D . 96View AnswerAnswer: C