The interview process was a little lengthy. I applied through a referral and was interviewed by one of the team members. I got selected for the onsite interview, which I learned about after three weeks. My interview was then scheduled for two weeks later.

The onsite interview was a positive experience. There were four interviews:

• Interview on C language
• OS and Computer Architecture based
• Problem Solving and White Board programming
• OS Internals and Assembly Language

All the team members were really welcoming and supportive. I felt it was more of a discussion than an interview, which was really helpful.

Q. What is char **ppi?

Q. What is the use of break and default in a switch statement?

Q. Explain the flow of a scenario where the Notepad App is opened and you are typing on your keyboard. Cover the whole flow from the OS perspective, including interrupts, system calls, etc.

Q. What are TLB, Cache Coherency, and the Memory Management Unit?

Q. Explain the flow when a page fault happens because the page exists in secondary memory.

Q. What is the use of the "probe" function in a device driver?

Q. What does "insmod" do?

Q. How does a function call happen in assembly language? What instructions are used (ARM or x86 architecture)?

Q. Implement your own spinlock.

Q. Whiteboard programming for: Input: (e.g., 23-7+3 or 2/36+3) Output: Result of the equation