4 Rounds overall:

1. Aptitude and Coding
2. Tech interview 1
3. Tech Interview 2
4. HR Round

The tech interviews were based on system design, such as what data structure you would use, and about polymorphism concepts, OOPs concepts, and of course, networking.

Aptitude questions were based on relative velocity and paragraph logic.

Tech Interviews

• Write a class and its constructor, and inherit from another class (basic example).
• Modify the constructor to make it inline arguments.
• Difference between Copy Constructor and assignment operator (=).
• How do you declare and initialize a static variable in C++?
• Write an example to demonstrate polymorphism in C++.
• What is a virtual function?
• What is a pure virtual function?
• What is DNS?
• Explain header format of TCP and UDP.
• What is HTTPS and questions regarding SSL?

HR Interviews

• Tell your strengths and weaknesses.
• Questions based on the technology they use.