OYO Rooms Interview Experience (Virtual 2021)

Oyo Rooms visited our campus for recruitment to join as Software Developer Engineer. Due to the COVID-19 pandemic, the entire process happened virtually through Google Meet.

CG Cut – 7.00

Round 1 Online Test: Through Hackerearth Platform, 20 MCQ were asked based on O.S, DBMS, and Data Structure and  Algorithm.

And 2 coding questions were asked

1. Print all possible words from phone digits
2. https://leetcode.com/problems/permutation-in-string/

Around 47 were shortlisted and 25 were shortlisted on the waiting list. (Total 72)

Round 2 Interview 1: 2 coding questions were asked, and I was told to write the code for the same. Also, there was a detailed discussion on time and space complexity

1. Write a program to print all permutations of a given string.
2. Print all nodes at distance k from a given node

The interview was very calm and helpful. I was able to solve both questions and I explained different approaches to solve the question.

Round 3 Interview 2: In this round questions were asked.

Operating Systems:

1. Thread in Operating System
2. Paging in Operating System
3. Paging in Operating System

Database Management Systems:

1. Indexing in Databases

4 Coding Questions:

1. Minimum number of swaps required to sort an array.
2. Merge two BSTs with limited extra space.
3. Merge two sorted arrays.
4. Find four elements that sum to a given value.

And I was asked to code for 4th question. After that, I was networking questions like

1. Differences between TCP and UDP
2. Examples of Data Link Layer Protocols

I was able to answer all the questions and interview was impressed by my performance.

At last, they selected 18 students as intern+FTE. I was one of them. After failing various companies’ test I was able to make it.