Answer
Liveness probes check if the service is running. Readiness probes verify if it is ready to accept traffic. Orchestrators like Kubernetes use these checks to manage service availability.
Quick Answer
Health checks tell the orchestrator if a service is ready to serve traffic. Liveness probe: is the app alive? (if not, restart it). Readiness probe: is the app ready for traffic? (if not, stop sending requests to it). You implement an endpoint (/health or /ready) that checks DB connections, dependencies, and internal state.
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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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Source: SugharaIQ