Interview Questions & Answers
Pick a category to practise interview questions for that technology.
298 questions across 10 categories
Core Java
Java core interview questions: OOP, strings, collections, exceptions, multithreading, memory and JVM internals.
Spring Boot
Spring Boot interview questions: auto-configuration, starters, annotations, profiles, Actuator and deployment.
Spring Framework
Spring core interview questions: IoC, Dependency Injection, AOP, beans, transactions and MVC.
Hibernate & JPA
Hibernate and JPA interview questions: ORM mappings, caching, lazy loading, inheritance and transactions.
Servlet & JSP
Servlet and JSP interview questions: servlet lifecycle, request/response, sessions, filters and JSP tags.
MySQL
MySQL interview questions: databases, joins, indexes, transactions, isolation levels and optimisation.
Database & SQL
General SQL interview questions: normalization, DML, DDL, key types, ACID and query tuning.
JavaScript
JavaScript interview questions: closures, hoisting, prototypes, this, promises, async/await and ES6.
Python
Python interview questions: data types, list vs tuple, GIL, decorators, generators and PEP 8.
Kubernetes
Kubernetes interview questions: cluster architecture, pods, deployments, services, networking and autoscaling.