This really depends on the interviewer.
I couldn't answer the riddle, and it disqualified me. The decline email was very brief. I won't apply again simply because the interviewer was not professional.
It was a very technical question.
The following metrics were computed from 6 interview experiences for the SpaceX Data Engineer role in United States.
SpaceX's interview process for their Data Engineer roles in the United States is extremely selective, failing the vast majority of engineers.
Candidates reported having good feelings for SpaceX's Data Engineer interview process in United States.