At the beginning of the zoom conference, you can set in the “Chat” section whether students are only allowed to communicate with the teacher or also with each other.
To do this, select the desired option in the chat settings.
Participant can chat with:
Video conferences without access protection (e.g. password) can - if the URL is made publicly available - be entered and disturbed by uninvited guests.
To protect meetings, Zoom meetings at Jade University are configured to require a password by default. See also “Privacy”.
Zoom offers free online training in German as well as video tutorials.