Classplus Software Developer Interview Questions and Answers

10 mcq, 2 dsa, 1 assignment question

Q1. Javascript basics
Add your answer
Q2. Previous projects
Ans. 
Developed a web application for tracking inventory and sales data
• Used React for front-end development

• Implemented RESTful APIs for backend using Node.js

• Utilized MongoDB for database storage
Answered by AI
Add your answer

Q1. Behavorial questions
Add your answer

Q1. Past Experience and System Design
Add your answer

Q1. DSA and System Design
Add your answer

Q1. Past Experience and System Design
Add your answer

It was on hacker rank. 2 questions easy to medium

Q1. Ask questions on trees
Add your answer
Q2. Asked questions on OOPS
Add your answer

Q1. Asked questions based on resume
Add your answer
Q2. Asked some puzzles
Add your answer

Q1. Questions were completely based on data structures and algorithm
Add your answer
Q2. SQL based questions were also asked
Add your answer

Q1. What is closure? Application and concept understanding
Ans. 
Closure is a function that captures the environment in which it was created, allowing it to access variables from that environment even after the function has finished executing.
• Closure allows a function to access variables from its outer scope even after the function has finished executing.

• It 'closes over' the variables from the outer scope, preserving their values.

• Example: function outerFunction() { let outerVar = 'I...read more
Answered by AI
Add your answer
Q2. What is event loop?
Ans. 
Event loop is a mechanism that allows for asynchronous programming by handling and executing events in a loop.
• Event loop is a part of the runtime environment that listens for events and executes callback functions.

• It allows for non-blocking I/O operations by delegating tasks to the operating system.

• Event loop is commonly used in JavaScript for handling asynchronous operations like setTimeout, setInterval, and AJAX requ
Answered by AI
Add your answer

2 coding questions medium level

Q1. All related to python
Add your answer
Q2. ANd Golang
Add your answer

Q1. -SQL basics , HTML and basic javascript
Add your answer

Basics of aptitude questions like relation,train,boat, probability,number series , and so on...

String occurrence, array list

Q1. Man crossing a bridge
Add your answer
Q2. Wrong label on the boxes
Ans. 
The wrong label on the boxes can cause confusion and errors in the software development process.
• Ensure proper labeling of boxes to avoid confusion

• Double check labels before using them in the development process

• Communicate with team members to clarify any discrepancies in labeling
Answered by AI
Add your answer