Which of the following would be used in an IP-based video conferencing deployment? (Select TWO).

A.
RS-232

B.
56k modem

C.
Bluetooth

D.
Codec

E.
SIP

Explanation:
The term “codec” is a concatenation of “encoder” and “decoder”. In video conferencing, a codec is software (or
can be hardware) that compresses (encodes) raw video data before it is transmitted over the network. A codec
on the receiving video conferencing device will then decompress (decode) the video signal for display on the
conferencing display.
The Session Initiation Protocol (SIP) is a protocol for initiating an interactive user session that involves
multimedia elements such as voice, chat, gaming, or in this case video.