The interview process consisted of three rounds:

• Round 1: Technical (25 minutes)
• Round 2: Technical (30-40 minutes)
• Round 3: Technical + HR (50 minutes)

Questions were mainly asked from CS fundamentals (OOPS, OS, DBMS) and DSA.

1st Round:

DSA: Reverse a Linked List code, Kadane's Algorithm code.

• 4 pillars of OOP with real-life examples
• What is a subclass and superclass
• Difference between SQL and NoSQL
• One SQL query.

2nd Round:

• What data structures were used in your 1st project (to-do list), their substitutes, and other data structures that could be used.
• Questions related to your 2nd project.

DSA: Matrix Chain Multiplication, 1 DP question (solved using the 'pick and not pick' trick).

• Polymorphism
• What is static and dynamic polymorphism?
• How is an abstract class different from an interface?
• Some basic questions from Computer Networking.

3rd Round:

This was an HR + Technical round.

DSA: Mirror of a Binary Tree (provided two solutions: one using a stack for level-order traversal and another functional method). The interviewer seemed impressed by both solutions.

OOPS: What is an abstract class? Difference between overloading and overriding. Constructor and Destructor.

DBMS: What is normalization? Different types of keys, etc.

Then the interviewer asked about your hobbies, interests, and background.

Finally, the interviewer inquired about your plans for higher studies and your willingness to relocate to the mentioned location.