BYJU'S Exam Prep interview experience Real time questions & tips from candidates to crack your interview
Software Developer
BYJU'S Exam Prep
3 rounds | 6 Coding
problems
Selected Interview preparation journey
Journey
Doing thorough research on the company is a must, and it helped me a lot because I already knew they would be more focused on projects and development. So, I prepared accordingly. I would suggest going through your resume and reading everything about what you have mentioned there.
Application story
It was an on-campus placement drive, and I applied through the link they provided us. Subsequently, my resume was shortlisted, and then the HR called us for the remaining rounds.
Preparation
Duration: 4 months
Topics: React, Node, MongoDB, DSA, Operating System, Computer Networks
Tip 1: Practice 5 questions on DSA daily.
Tip 2: Read interview questions on the skills that you have.
Tip 3: Present your projects and work very well. I would suggest preparing points in advance so that you don't miss anything.
Tip 4: Most importantly, stay confident and calm.
Tip 5 (important): Read about the questions you were unable to answer in interviews.
Application process
Where: Campus
Eligibility: Above 7.5 CGPA
Tip 1: Be professional in your resume.
Tip 2: Don't mention skills in which you don't have a good grasp.
Interview rounds
01
Round
Medium
Online Coding Interview
Duration90 minutes
Interview date5 Sep 2022
Coding problem3
1. Longest Subarray of 1's After Deleting One Element
Moderate
30m average time
70% success
0/80
Asked in companies
Given a binary array nums, you should delete one element from it.Return the size of the longest non-empty subarray containing only 1's in the resulting array.
2. 3Sum Closest
Moderate
30m average time
70% success
0/80
Asked in companies
Given an integer array nums of length n and an integer target, find three integers in nums such that the sum is closest to target.Return the sum of the three integers.
3. Binary Tree Zigzag Traversal
Easy
15m average time
85% success
0/40
Asked in companies
Given the root of a binary tree, return the zigzag level order traversal of its nodes' values. (i.e., from left to right, then right to left for the next level and alternate between).
02
Round
Medium
Face to Face
Duration40 minutes
Interview date6 Sep 2022
Coding problem2
Web problem/projects13
1. DBMS
Explain ACID Properties.
2. DBMS
How would you choose between a Relational DB and a NoSQL Database.
3. DBMS
Why Relational Database are good for ACID Properties?
4. ReactJS Hooks
What are hooks in reactjs?
6. JavaScript Closures
What are closures in JS?
7. Event Loop in JS
What is event Loop in Js?
8. Question related to personal project
How did you built Video calling in your Personal Project.
9. Sockets in JS
What are sockets in JS?
10. CORS
What are CORS ?
12. Concurrency Management in Node.js
How do you handle concurrency in NodeJs?
13. Comparing Async/Await and Promises in JavaScript
Async/Await Vs Promises.(Link)
14. Detecting Loops in a Linked List
Moderate
15m average time
80% success
0/80
Asked in companies
Write a Pseudo Code to check if a Linked List have Loop.
15. Puzzle
How will you measure 4 ltr of milk from 3 ltr and 5 ltr jar?
03
Round
Easy
Online Coding Interview
Duration30 min
Interview date8 Sep 2022
Coding problem1
Web problem/projects3
1. System Design
Difference between Horizontal and Vertical Scaling.(Link)
2. System Design
Difference between sharding and Partitioning.
3. Designing an Algorithm for Generating Random Distinct Numbers
How can you create a algorithm that can generate a random and distinct number everytime we call it?
4. Discussion Personal Project
Discussion on my personal project , like(why did you use this and not other etc)
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
How do you remove whitespace from the start of a string?
Choose another skill to practice
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