Free quiz library
Ready-made quizzes, prepared ahead of time. Free, ad-supported.
Browse a growing collection of ready-made multiple-choice quizzes covering programming, general knowledge and more. Each quiz is free to take online — pick an answer to see instantly whether it was right, read the explanation, and check the full answer key on every quiz page. No account, no time limit, nothing to install. Want a quiz built from your own notes or textbook instead? Create one from a PDF.
- Distributed Systems: Consensus & Fault ToleranceIT
Distributed Systems: Consensus & Fault Tolerance
Deep dive into distributed systems engineering, covering consensus protocols (Raft/Paxos), the CAP theorem, and vector clocks.
16 questionsStart quiz - LLM Engineering: Fine-Tuning, Alignment & ServingIT
LLM Engineering: Fine-Tuning, Alignment & Serving
Test your knowledge of transformer architectures, PEFT techniques (LoRA), RLHF, vLLM, and production deployment strategies.
16 questionsStart quiz - Applied AI: Systems, Embeddings & RAGIT
Applied AI: Systems, Embeddings & RAG
Assess your understanding of practical machine learning architectures, embedding spaces, and Retrieval-Augmented Generation systems.
16 questionsStart quiz 
ITFrontend Architecture: Micro-Frontends & Rendering
Evaluate your knowledge of Modern Frontend Architecture, SSR, SSG, Hydration mechanics, Islands Architecture, and Module Federation.
16 questionsStart quiz
ITDeployment Strategies: Canary vs. Blue-Green Rollouts
Evaluate your understanding of zero-downtime deployment patterns, traffic routing mechanisms, and rollbacks.
16 questionsStart quiz
ITChaos Engineering Principles & Failure Injection
Challenge your understanding of Chaos Engineering, hypothesis testing, GameDays, blast radius containment, and tools like Chaos Mesh.
16 questionsStart quiz
ITNext-Gen Spring Boot & Cloud Architecture
Evaluate your expertise in Spring Boot 3+, GraalVM AOT compilation, Spring Cloud, and reactive microservices.
16 questionsStart quiz
ITModern Java: Beyond Java 17 and Project Loom
Test your mastery of modern Java features including Virtual Threads, Sealed Classes, Pattern Matching, and JVM internals.
16 questionsStart quiz- Site Reliability Engineering: SLIs, SLOs & Incident ResponseIT
Site Reliability Engineering: SLIs, SLOs & Incident Response
Test your knowledge of SRE principles, Error Budgets, SLIs/SLOs, alerting heuristics, and blameless postmortems.
16 questionsStart quiz - High-Performance Web: Protocols & Edge SystemsIT
High-Performance Web: Protocols & Edge Systems
Challenge your understanding of HTTP/2, HTTP/3, QUIC, TLS 1.3, TCP tuning, and Content Delivery Network architectures.
16 questionsStart quiz - DevSecOps: Secure CI/CD & Supply ChainIT
DevSecOps: Secure CI/CD & Supply Chain
Evaluate your understanding of shifting security left, Software Bill of Materials (SBOM), container scanning, and secure pipelines.
16 questionsStart quiz - Application Security: OWASP & Modern CryptographyIT
Application Security: OWASP & Modern Cryptography
Test your expertise in modern application security, OWASP Top 10 vulnerabilities, secure session management, and cryptographic implementations.
16 questionsStart quiz - Message Brokers: Apache Kafka & RabbitMQ InternalsIT
Message Brokers: Apache Kafka & RabbitMQ Internals
Deep dive into messaging architectures, comparing Kafka's distributed commit log against RabbitMQ's AMQP routing model.
16 questionsStart quiz - Event-Driven Architecture: Event Sourcing & CQRSIT
Event-Driven Architecture: Event Sourcing & CQRS
Evaluate your architectural knowledge of Event-Driven Design, Event Sourcing, Domain Events, and streaming consistency models.
16 questionsStart quiz - Database Engineering: SQL, NoSQL & Vector DBsIT
Database Engineering: SQL, NoSQL & Vector DBs
Assess your understanding of indexing internals, storage engines, isolation levels, NoSQL scaling, and vector indexing.
16 questionsStart quiz - Cloud-Native, Kubernetes & Container InternalsIT
Cloud-Native, Kubernetes & Container Internals
Deepen your technical knowledge of Linux namespaces, cgroups, Kubernetes control plane internals, CNI, and CRI.
16 questionsStart quiz - Microservices Patterns & Distributed ArchitecturesIT
Microservices Patterns & Distributed Architectures
Test your mastery of microservices patterns, including Saga, CQRS, Outbox, API Gateways, and domain decomposition.
16 questionsStart quiz 
ITGit & Version Control Fundamentals
Test your knowledge of Git repositories, commits, branches, merging, remotes, and common version control workflows.
12 questionsStart quiz- How the Internet Works: Core ConceptsIT
How the Internet Works: Core Concepts
Test your understanding of the technologies and protocols that allow devices, websites, and services to communicate across the Internet.
12 questionsStart quiz - Java 21 language featuresIT
Java 21 language features
Records, pattern matching, virtual threads, and more from the Java 21 LTS.
6 questionsStart quiz - Spring Boot 4 fundamentalsIT
Spring Boot 4 fundamentals
Check what you know about Spring Boot 4 and Spring Framework 7.
6 questionsStart quiz
About the free quiz library
These quizzes are prepared ahead of time and hand-checked, so they are a reliable way to revise a topic or warm up before a test. Every question is multiple choice with one correct answer and a short explanation, so you are not just told what is right — you learn why. Because nothing is saved and there is no login, you can practise as often as you want, and each quiz page doubles as a study sheet you can read straight through.
Frequently asked questions
Are these quizzes free?
Yes. Every quiz in the library is completely free to take, with no sign-up and no time limit. The library is supported by ads.
Do the quizzes show the correct answers?
Yes. After you answer each question you see whether you were right, along with an explanation. Each quiz page also has a full answer key with explanations you can read on its own.
Can I retake a quiz?
As many times as you like. Your score is calculated as you go and nothing is saved, so every attempt starts fresh.
Can I make a quiz from my own material?
Yes — upload a PDF or document and Quiz2Know generates a practice quiz from it, with per-topic stats and progress tracking. The free library is a separate, ready-made collection.