Which statements about web conferencing are true? (A) It uses the Internet to…

Concept

Web conferencing is a synchronous online communication service. Participants use Internet-connected devices to exchange audio, video, screen content, or messages in real time.

Participants can join and leave a session; Internet connectivity and simultaneous interaction define the mode, not compulsory attendance for the entire session.

Application

1. The Internet-medium statement describes the network used for the conference, so it is true.

2. The multiple-connected-device statement describes how participants join from different computers or devices, so it is true.

3. The participant-control statement says that a participant cannot leave after joining. Conferencing systems allow a participant to leave, so it is false.

4. The real-time statement describes synchronous interaction, so it is true.

Cross-check

• Internet use and multiple connected devices describe the infrastructure.

• Real-time interaction describes the timing of communication.

• The claim that a participant cannot leave contradicts ordinary session control.

Therefore, the true statements are (A), (B), and (D).