IT Interview Questions and Answers
Practise the questions interviewers actually ask, with short, accurate answers written by APEX trainers. Basic, intermediate and advanced levels for every topic.
Java Interview Questions
Core Java, OOP, collections, exceptions, multithreading and Spring Boot questions asked in fresher and experienced Java developer interviews.
10 questions with answersPython Interview Questions
Python fundamentals, data structures, OOP, generators, decorators and Django/FastAPI questions for Python developer and data roles.
10 questions with answersJavaScript Interview Questions
Closures, hoisting, the event loop, promises, this, ES6+ features and DOM questions asked in frontend and full stack interviews.
10 questions with answersReact Interview Questions
Hooks, state, rendering, keys, performance, React 19 and Next.js questions for frontend developer interviews.
10 questions with answersNode.js Interview Questions
Event loop, streams, Express, middleware, authentication, scaling and error handling questions for Node.js backend interviews.
10 questions with answersSQL Interview Questions
Joins, keys, normalization, indexes, GROUP BY, window functions and query writing questions for developers, testers and data analysts.
10 questions with answersManual Testing Interview Questions
SDLC, STLC, test cases, bug life cycle, testing types and Agile questions for manual testing and QA fresher interviews.
10 questions with answersSelenium Interview Questions
Selenium WebDriver, locators, waits, Page Object Model, TestNG and framework design questions for automation testing interviews.
10 questions with answersPlaywright Interview Questions
Playwright locators, auto-waiting, fixtures, API testing, tracing and CI questions for modern test automation roles.
10 questions with answersAPI Testing Interview Questions
REST, HTTP methods, status codes, Postman, authentication and Rest Assured questions for API and backend testing interviews.
10 questions with answersDevOps Interview Questions
CI/CD, Git, Docker, Kubernetes, Linux, infrastructure as code and monitoring questions for DevOps and cloud engineer interviews.
10 questions with answersData Analytics Interview Questions
Excel, SQL, Power BI, statistics, data cleaning and case-study questions for data analyst interviews.
10 questions with answersGenerative AI Interview Questions
LLMs, prompting, embeddings, RAG, vector databases, agents, evaluation and safety questions for GenAI and AI application roles.
10 questions with answers
How to use these questions
Read the answer, then explain it aloud in your own words with an example from a project. Interviewers check understanding, not memorised lines. When you are ready, practise with a mock interview in an APEX live batch or start with our free tutorials.