There were four rounds in total.

1. The interview process started with a written test. Questions were divided into two sections:

• Aptitude
• Technical questions (mainly C programming and Operating Systems)

1. Technical interview - 1. It was mainly based on Operating systems, for example, mutex, spinlock, and pthreads and their implementation.

2. Technical interview - 2. This was a tricky round and had a mix of algorithms and data structures questions:

• Linked list implementation
• Questions based on when to use the "struct" data structure and how to use it.
• There was a chain of questions. The next question depended on the answer to the current question, so it's difficult to explain in a few words.

1. HR. This was just like a typical HR round of any other company, with no special questions.

Question based on memory management.