6sense Python Developer interview questions

I was shared online test along with a mail sharing with me 3-4 rounds of interview process. Before I can actually start the first test, I got a mail that your experience doesn't match inspite of the discussion done with HR regarding various rounds. This is not how a company engange with candidates.

I have been through 3 rounds - Initial assignment on hackerrank, a medium level DFS question. - Round with Head of Engineering, discussion on the assignment solution, 1 coding question, 1 code debug question. - Round with Engineering manager, 1 coding question, 1 design question I was rejected after this, probably because I could not answer the design question.