If you want to practice your answers, you can do so on the actual interview page. Just record a video, but don't send it, the draft version is viewable only to you.
The recruiter can view your videos ONLY after you click the 'Send'-button. Each time you record a new draft, the old draft is deleted automatically and is not accessible anymore. The interviewers are not able to see how many times you have recorded your answer.
While practising; make sure that there is enough light and that it comes from the front, your sound is clear and loud enough. Also think about the posture and height of the camera. Our recommendation is to place the camera on eye-level.

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