How long have you worked without participating in projects?

This question is usually asked to assess your activity and motivation. It is important to answer honestly if there were periods without projects, and to explain what you were doing during that time — for example, learning, studying new technologies, participating in open-source, preparing for interviews, or solving personal tasks.

If there were no such periods, you can simply say that you were continuously involved in projects.

Example answer:

"In the last 6 months, I did not work on projects, but actively studied new Python libraries and participated in online courses, which helped me improve my skills and prepare for new challenges."