One round of phone screening.

3-4 hours of second round technical (on-site).

• 3-4 sessions, each 40-60 minutes.
• 2-3 interviewers per session.
• Multiple technical questions, focusing on fundamentals.

Interview breakdown:

• 40% C programming
• 30% OS
• 20% TCP/IP network questions
• 10% behavior/previous experience

The interview was long, so most important knowledge points were covered.

There were no unusual questions; most were straightforward. Be careful with details, as interviewers judge based on your thinking process and ability to handle specifics.

Write code to implement a Binary Search.

Then, construct a Binary Search Tree.

Talk about AVL trees.

Describe the difference between a binary semaphore and a mutex.