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Cloud & DevOps Engineering Interview Questions & Answers

Docker containers, Kubernetes, CI/CD pipelines, AWS fundamentals, and microservices.

Easy 0 views

How do IaaS, PaaS, and SaaS divide operational responsibility?

IaaS provides infrastructure such as virtual machines and networking while the customer typically manages the operating system and application stack. PaaS manages more of the runtime and deployment pl...

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How is a container different from a virtual machine?

A container packages an application and its dependencies while using an operating-system kernel through isolation mechanisms. A virtual machine runs a guest operating system on virtualized hardware. C...

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What checks belong in a useful CI pipeline for a web service?

Run fast feedback first: formatting or linting where useful, compilation or type checks, focused unit tests, and integration checks for important boundaries. Build a reproducible artifact and apply ap...

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How do readiness, liveness, and startup probes serve different purposes in Kubernetes?

Readiness indicates whether a container should receive traffic through the relevant service routing. Liveness determines whether a running container should be restarted after repeated failures. A star...

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What does infrastructure as code provide beyond a script that creates servers?

Infrastructure as code records desired infrastructure in versioned, reviewable configuration and supports reproducible changes through a defined tool workflow. Depending on the tool, state tracks reso...

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How would you perform a canary release and decide whether to continue or roll back?

Deploy the new version to a small, representative portion of traffic and compare it with a stable baseline. Define decision thresholds for error rate, latency, resource use, and relevant business outc...

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