System Design – Circuit Breaker
Practice system design interview questions on the circuit breaker pattern. Cover how it prevents cascading failures and when to use it. Answer questions and receive feedback on trade-offs. Ideal for software engineer system design prep. First 2 questions are free with full feedback.
- Level Intermediate
- Questions 12
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Sample system design – circuit breaker interview questions
Preview 6 questions from this track in quiz order. In the full quiz you answer one at a time — type or speak — then get a score and feedback.
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What is the circuit breaker pattern?
What a strong answer includes
Stops calling a failing service temporarily.
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What are the three states?
What a strong answer includes
Closed, open, and half-open.
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When does the circuit open?
What a strong answer includes
After a failure threshold is reached.
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What happens in the open state?
What a strong answer includes
Requests fail fast without calling the service.
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What is the half-open state?
What a strong answer includes
Allows a test request to check recovery.
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Why use a circuit breaker?
What a strong answer includes
Prevents cascading failures.