Hiring Process: OA + 2 Technical Round + 1 HR

OA : There were 3 coding questions, I solved all three.

Interviews were offline.

Round 1: 1 hour

OOps Concepts, Sql queries

Code for the following:

• a situation based on a problem of polymorphism,

• a Graph Ques. (I did it using bfs, then she asked me to do dfs too)

• one linked list question (Converting a graph into a linked list, level order traversal)

• one hashmap based question

Round 2:

• Asked me to write all layers of the osi model and explain each.

• TCP/IP vs OSI

• The interview was a bit confusing as he was mistaking Application layer with Physical layer, but I cleared him.

• He asked me to explain one of one of my projects I mentioned in my resume.

• Then he asked me to explain some sql queries.

• All the sorting algo I know.

Till this time, I was feeling that, i will be selected,

He asked me about my previous internship experience. I did not have any internship experience (mauka hi nhi mila internship krne ka).

So, I said , no, and explained, how I invested my time in learning.

Everything was good, that is what I thought, but It was not actually.

Then , he asked me "Is it possible to create an interface in C++?"

I thought it was a very easy question, and said "Yes, it is possible, you need to create an abstract class with only pure virtual functions."

The interviewer wrapped up saying "so, do you have any questions for me?"

and Its done.

The interview ended 20 minutes earlier than its ending time.

Result: Rejected.

I googled the answer thinking I was wrong, and it says, "In C++ programming there is no built-in concept of interfaces. In order to create an interface, we need to create an abstract class which has only pure virtual methods."

For HR rounds, friends told me, they were asking,

Why us, what do we do? And for the students who have previous internship experience, they asked if they would choose them or their previous company if they got a ppo.