A recruiter contacted me through a professional social network.

We arranged a phone call.

After introducing himself and discussing the weather, the interviewer (a technical sourcer) started asking technical questions.

I answered some simple questions incorrectly and did not expect an offer.

I was quite nervous, and the recruiter tried to make me feel comfortable.

Inode attributes, standard Linux signals, sticky and setuid bits, fields of the passwd file, fork()...