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What are circuit breakers and fallback mechanisms?

Junior Microservices

Answer

A circuit breaker prevents repeated calls to a failing service, avoiding cascading failures. A fallback mechanism provides a default response when a service is unavailable. Tools include Hystrix and Resilience4j.

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SugharaIQ Editorial Team Verified Answer

This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.

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