Continuous Integration and Delivery Pipelines Questions

Design and implement continuous integration and continuous delivery pipelines that reliably build, test, validate, and deploy applications and infrastructure. Topics include pipeline as code practices, defining stages and triggers for builds and tests, automated testing strategies across unit, integration, smoke, and end to end tests, gating and environment promotion, branching and release strategies, artifact management and versioning, and deployment patterns such as rolling updates, blue green deployments, and canary releases. Candidates should be able to design rollback and recovery procedures, integrate infrastructure provisioning into pipelines, select and configure pipeline tooling such as Jenkins, GitHub Actions, GitLab CI, Azure Pipelines, or cloud vendor pipeline services, and reason about observability and reporting for pipeline health and test execution. Practical considerations include environment parity, pipeline security, secrets handling, pipeline as code best practices, and trade offs between speed and safety.

EasyTechnical

42 practiced

Describe best practices for secrets management in CI/CD pipelines for cloud-based deployments (AWS, Azure, GCP). Cover secret storage, runtime injection into jobs, log masking, rotation, least privilege, and how to avoid exposing secrets in artifacts or PR builds.

HardSystem Design

37 practiced

Describe how to integrate application and pipeline observability into your CI/CD workflow. Include collecting and surfacing SLO metrics during canaries, correlating deployment IDs with traces and logs, and automating rollbacks when SLOs are violated. Explain how to store and query historical deployment-performance data.

MediumTechnical

37 practiced

You observe that a subset of tests are flaky and cause pipeline instability. Propose a strategy to triage and mitigate flaky tests while maintaining fast feedback. Cover tactics like quarantining tests, reruns, prioritization, test parallelization, and investment decisions.

EasyTechnical

40 practiced

Write a GitHub Actions workflow YAML that builds a Node.js application (npm) for Node 14 and 16, runs unit tests, caches node_modules, and uploads test reports as artifacts. Trigger on push and pull_request targeting main. Keep steps idempotent and concise.

EasyTechnical

38 practiced

Explain 'pipeline as code'. Describe core benefits (e.g., reproducibility, code review, versioning) and also list common pitfalls and anti-patterns (e.g., duplicated logic, secrets in repo, large monolithic pipelines). Provide examples relevant to cloud engineers.

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