Answer each of the questions simply and spontaneously in a time specified by the company (max. 3 minutes). For each question, you have enough time to prepare yourself. The exact time and also the number of possible attempts are shown next to the question. If you take another attempt, your previous answer will be overwritten.
Should I first introduce myself in the video or audio?
This is not necessary, the company already knows quite a lot about you through your CV. Just use the time to answer the question.