Free · Timed · Instant score
Mock Tests
Practise like the real exam: 20 random questions, a timer, your score and the topics to revise. Every question has an explanation, and you get new questions every time.
HTML MCQ Test
20 random HTML multiple-choice questions with answers and explanations: elements, attributes, links, images, lists, tables, forms and semantic HTML. Free, timed, instant score.
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CSS MCQ Test
20 random CSS multiple-choice questions with answers: selectors, specificity, the box model, colours, units, Flexbox, Grid, positioning and responsive design.
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JavaScript MCQ Test
20 random JavaScript MCQs with answers: variables, types, functions, arrays, objects, the DOM, events, promises and async/await. Timed practice test with explanations.
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SQL MCQ Test
20 random SQL multiple-choice questions with answers: SELECT, WHERE, ORDER BY, INSERT/UPDATE/DELETE, aggregate functions, GROUP BY, JOINs, keys and indexes.
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Python MCQ Test
20 random Python MCQs with answers: syntax, data types, strings, lists, tuples, sets, dictionaries, loops, functions, files, exceptions and classes.
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Java MCQ Test
20 random core Java MCQs with answers: data types, operators, strings, Scanner, conditions, loops, arrays, methods, collections, HashMap, exceptions, lambdas and streams.
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Java OOP MCQ Test
20 random Java OOP MCQs with answers: classes and objects, constructors, encapsulation, inheritance, polymorphism, abstraction, interfaces, equals/hashCode, records and SOLID.
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Servlet and JSP MCQ Test
20 random Servlet and JSP MCQs with answers: the servlet lifecycle, request and response, forms, sessions and cookies, filters, JSP, JSTL and MVC.
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JPA MCQ Test
20 random JPA MCQs with answers: entities, the EntityManager, persistence context, entity states, relationships, fetching, JPQL and transactions.
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Hibernate MCQ Test
Random Hibernate MCQs with answers: architecture, lazy loading and proxies, LazyInitializationException, the N+1 problem, caching, batch processing, useful annotations and best practices.
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Spring Framework MCQ Test
20 random Spring Framework MCQs with answers: IoC and dependency injection, beans, scopes, configuration, AOP, Spring MVC and transactions.
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Spring Boot MCQ Test
20 random Spring Boot MCQs with answers: auto-configuration, REST controllers, Spring Data JPA, validation, profiles, security with JWT, testing and Actuator.
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Jmix MCQ Test
Random Jmix MCQs with answers: the data model, entities, views, the data manager, security roles and building business apps with Jmix.
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React MCQ Test
20 random React MCQs with answers: JSX, components and props, state, events and forms, lists and keys, useEffect, memo, context, useReducer, custom hooks and React Router.
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Angular MCQ Test
20 random Angular MCQs with answers: components, templates and data binding, directives, services and dependency injection, routing, forms, HttpClient, RxJS and signals.
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DSA MCQ Test
20 random data structures and algorithms MCQs with answers: Big O, arrays, hashing, two pointers, sliding window, binary search, sorting, recursion, linked lists, stacks, trees, heaps, graphs and DP.
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Coding Interview MCQ Test
20 random MCQs on classic coding interview problems with answers: Two Sum, sliding window, binary search, stacks, linked lists, trees, graphs, heaps, backtracking and DP.
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