Advanced~5h
Distributed Systems in System DesignInterview Readiness Check
CAP theorem, consensus, consistency models, distributed coordination.
cap-theoremconsensusraftpaxosvector-clockscrdtdistributed-locksaga
Learning path
Try a sample question
What does CAP theorem state?
A.A distributed system can be Consistent, Available, and Partition-tolerant simultaneously
B.Distributed systems cannot be both fast and reliable
C.All databases must choose between Consistency and Availability
D.A distributed system can guarantee at most two of: Consistency, Availability, and Partition tolerance
Sign up free to take the full check and see the answer with an explanation.
What this module tests
- Conceptual understanding of distributed systems fundamentals
- Trade-offs and design decisions in real system scenarios
- cap-theorem and consensus — applied knowledge
- Interview-style reasoning and explanation quality
Free to start
Take the Distributed Systems check →
10 questions · Dimension scoring · AI coach feedback · Shareable result
Test your knowledge — free →No credit card · Takes 10–15 min
Frequently asked questions
- What does the Distributed Systems check test?
- The check covers cap theorem, consensus, consistency models, distributed coordination. Questions span beginner to advanced difficulty and test both conceptual understanding and practical trade-off reasoning.
- What keywords should I know for Distributed Systems?
- Key concepts include: cap-theorem, consensus, raft, paxos, vector-clocks, crdt, distributed-lock, saga. These frequently appear in system design interviews at product and infrastructure companies.
- How many questions are in the check?
- Each check has 10 questions — a mix of MCQ and short-answer. You get scored by dimension (e.g., scalability, consistency) so you know exactly where to focus.
- How long does it take to study Distributed Systems?
- Most engineers spend around 5 hours on this module. The check itself takes about 10–15 minutes. You can retake it up to 3 times per day.
- What prerequisite knowledge do I need before Distributed Systems?
- Distributed Systems builds on Databases and Scalability. Complete those first for the best results.
- Is cap-theorem, consensus, raft covered?
- Yes. The Distributed Systems module covers cap-theorem, consensus, raft among other key concepts. The check includes questions that reflect real system design interview patterns.