In video conferencing, the () feature enables participant terminals with different capabilities to display secondary stream data information

Answer(s): A

Regarding small-capacity meetings (three-party and above), the following statement is correct ().

The number of participants in small-capacity meetings reached the thousandth.
When convening small-capacity meetings, no MCU equipment is required.
Small-capacity meetings have low interactivity requirements.
Small-capacity meetings are mainly used for small-scale conference communication.

Answer(s): D