VISA Inc. Interview Experience On-Campus

The whole process had a total of 4 rounds. One Coding round and 3 interview rounds(2 technical + 1 HR).

1st Round

This was a coding round hosted on the Hackerrank platform held in the CCC lab. A total of 3 questions were to be solved in a span of 90 minutes. In my case, the questions were on the topics

• A cakewalk brute force question solved using simple quadratic equations formula.
• An easy-medium question that was based on the priority queue of queues.
• A medium-level question based on “Binary-Search on answer”. Somewhat similar to this question- https://leetcode.com/problems/minimum-!me-to-complete-trips/

2nd Round

Firstly, I was asked to introduce myself and then about my primary language in DSA (C++) and web development (JavaScript).

• This round mainly focused on my OOPS skills. I was asked to define and implement(on hacker-rank code pair) different OOPS concepts like- inheritance with its types, virtual functions, friend functions, and static keywords. This thing took about half an hour.
• Then he asked some questions on system design
  • Difference between horizontal and vertical scaling.
  • How will you synchronize ticket booking across multiple locations in the IRCTC app?
• Some questions on Operating systems- Diff b/w Process and Threads, Semaphores (with an example).
• What is a DDoS attack?

P.S- No DSA question was asked 🙁

3rd Round

I was asked to introduce myself.

I Was Grinded on theory concepts (SDLC, OS, DBMS) for a long time. Some questions(that I remember) were-

• What is testing and what types of testing?
• Stages of SDLC.
• Semaphores.

He gave me 2 puzzles to solve-

• How can you make 3 equilateral triangles using 6 matchsticks without breaking them?
• Hourglass puzzle on GFG ( h+ps://www.geeksforgeeks.org/puzzle-27-hourglasses-puzzle/ ).

P.S- Again no DSA question asked 🙁

4th Round

In this round, the interviewer was a highly experienced individual. He is a VP of some department(I forgot). I was asked to introduce myself.

• Previous internship experience.
• Questions on my project’s concepts.
• What was your one mistake that you regret now?
• Question about hobbies and my interests.