Regarding the video conferencing mode, the following description is correct?

In the high-volume conference mode, meeting management personnel are generally not required.

In the peer-to-peer conference mode, the number of participants is small and the interactivity is high.

Small-capacity conferencing requires the MCU to provide media resources.

In general, the interactivity requirements of peer-to-peer meetings and small-capacity conferences are higher than those of large-capacity conferences.