I received an email from HR about my profile being selected for the position, as well as details for the hiring process.

1. I had to take two online exams: one for Aptitude and one for Java (45 minutes each).
2. Once selected, I was called for five rounds of interviews (four technical and one HR).
3. After three rounds of interviews, the HR interview took place (they skipped one technical interview).
4. The following week, I received my offer letter.

What is the process of OS booting?

For example, what happens in the background when you switch on your system until you get the username and password fields?

How do you find the middle node of a linked list in one traversal?

You will get a lot of puzzle questions.

How can you sort a text file of 4GB size in a computer system with 2GB RAM?

Programming questions to find common words, common characters, truncating a string with gaps, etc.