Oracle

Technical discussion and managerial round. HR and then no offer. Simple C questions, like implementing malloc. Simple C questions on static variables, volatile variables, etc., and the difference between global, stack, and heap.

The interview was tough. The questions were not direct. Puzzles were also asked. The focus was mainly on understanding data structures. The first interview was fine, but the consecutive ones got even tougher.

I had a HackerRank test before the 1:1 round. The questions in the HackerRank test were easy. After that, the recruiter scheduled a phone interview. The phone interview consisted of questions about Linux, Docker, Networking, OS fundamentals, and Jav