Q1. What is a blue/green deployment?
Blue/green is a deployment strategy with two identical environments. Blue runs the current version, and green runs the new version. Process: 1. Deploy the new release to ...
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Q2. What is the difference between continuous delivery and continuous deployment?
Both build on continuous integration, but they differ in what reaches production. - Continuous delivery: every change that passes automated tests is always in a deployabl...
Q3. Explain the difference between a Deployment and a StatefulSet.
Both manage Pods, but they make different guarantees. Deployment: - Manages stateless, interchangeable replicas identified by a random suffix. - Supports rolling updates ...
Q4. How do you design a CI/CD pipeline?
Stages: 1. Trigger on push or pull request. 2. Build: compile, install dependencies, produce an immutable artefact (container image) tagged with the commit SHA. 3. Static...
Q5. How do you implement safe rollbacks in a delivery pipeline?
Make rollback a first-class, automated, and tested operation. - Immutable artefacts: deploy versioned images or packages so you can redeploy the previous one exactly. - D...
Q6. How would you troubleshoot a failed Azure VM deployment?
Use the deployment history and activity log first, then drill into the resource. 1. Inspect the failed deployment operations to get the exact error code. ```bash az deplo...