learn deep. ship safe.Practice testsFollow ByteMunSubscribe

Free interview practice

Interview preparation

Practise interview questions by skill and experience level, then take a timed test. Every answer comes with an explanation of why it is right and why the other options are wrong.

  • 3 skills
  • 10 timed test papers
  • 110 practice questions
  • Fresher to senior

Choose a skill

Each skill has Fresher, Intermediate and Pro papers, every answer explained.

JavaScript interview questions for freshers and mid-level developers: core language concepts, Node.js and React, each with the answer and an explanation of why the other options are wrong.

  • Fresher
  • Mid
  • Senior
  • Mixed
Tests
4
Practice
50 Qs
Answers
Explained

Node.js interview questions for freshers to senior developers: modules, the event loop, streams, Express, scaling with workers and clusters, and production operations, each with a worked explanation.

  • Fresher
  • Mid
  • Senior
Tests
3
Practice
30 Qs
Answers
Explained

React interview questions from fresher to senior level: JSX, props and state, hooks, effects, performance, and React 19 features like Actions, useActionState and Server Components, each with an explanation.

  • Fresher
  • Mid
  • Senior
Tests
3
Practice
30 Qs
Answers
Explained

Coding problems

Write real code in JavaScript or Python, run it against tests in your browser, and read a full solution when you're done.

Browse coding problems

How to prepare with these quizzes

  1. Practise first. Each quiz page lists every question with its answer and explanation hidden until you open it.
  2. Take the timed test. One question at a time, a timer, a question map, and “mark for review”, like an online assessment round.
  3. Read your report. Your score, pass mark, time taken, and which topics and difficulty levels you dropped marks on.
  4. Retry what you got wrong. Rerun only the missed questions until they stick. Your past scores stay in this browser.