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Quiz

2741 questions of the kind that actually get asked — in interviews, in architecture review boards, and by the person who has to run the thing at 3 AM. Every answer states the trade-off rather than the slogan, and says when the obvious choice is the wrong one.

All areas2741 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture78 Reliability & Resilience99 Observability92 Performance & Capacity Engineering90 Security Architecture95 Cost Architecture & FinOps92 Business Architecture93 Architecture Communication91 Enterprise Architecture91 Legacy Modernization92 AI-Era Architecture96 Software Architecture & Engineering84 Architecture Patterns84 Architecture Decision-Making91 The Architect's Meta-Skills92 Delivery & Release Engineering93 Platform Engineering & Developer Experience92 Testing & Quality Architecture102 Data Platform Architecture98 Streaming & Real-Time Data93 Data Governance & Semantics91 Frontend & Experience Architecture91 Edge, Mobile & IoT88 Regulatory & Data Protection Architecture90 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

93 questions in Delivery & Release Engineering.

  1. Artifact Management advanced

    A deployment in one region runs correctly and the same deployment in another fails with a missing configuration key. Both reference image `service:1.8.2`. The registry reports one digest for that tag. How do you diagnose this, and what is the fix?

    4 min answer registrymutable-tagsdigestsreplication
  2. Artifact Management intermediate

    A platform distributes large artefacts to many consumers. What does artefact management need beyond storage?

    2 min answer artifactsimmutabilityretentionprovenance
  3. Artifact Management intermediate Multiple choice

    A team's registry holds every build artefact ever produced: 400,000 container images, 180 TB, growing 6 TB a month, and the storage bill is now material. Which retention policy should they adopt?

    3 min answer artifact-managementretentionrollbackaudit
  4. Artifact Management advanced

    In July 2024 a CrowdStrike content update - not a sensor code release - caused Windows hosts to crash worldwide, with Microsoft estimating about 8.5 million affected devices. The sensor software itself had been through staged release. What does this teach about artefact management, and where would over-correcting be a mistake?

    3 min answer crowdstrikecontent-artefactsstaged-rolloutrollback
  5. Branching Models intermediate

    A design platform in the mould of Canva moves 90 engineers off long-lived feature branches onto trunk-based development with a merge queue. Six weeks later the mean branch still lives four days and the trunk is no healthier. Review this change. What did they actually need to change?

    2 min answer canvatrunk-based-developmentcode-reviewbranch-lifetime
  6. Branching Models intermediate Multiple choice

    A platform with many teams and frequent releases must choose a branching model. What decides it?

    1 min answer branchingtrunk-basedrelease-branchesprerequisites
  7. Branching Models intermediate Multiple choice

    A product ships versioned software that customers install and run themselves. Three major versions are under support and security fixes must reach all of them. Which branching model fits?

    2 min answer branchingrelease-branchestrunk-basedsupported-versions
  8. Branching Models intermediate

    Sixty engineers work on branches that live five days on average before merging. Estimate what that lifetime costs per year, and say which assumption dominates the error.

    3 min answer branchingtrunk-basedmerge-conflictsrework
  9. Build Reproducibility intermediate

    A build produced a different artefact from the same commit two weeks apart. Why does that matter, and what makes builds reproducible?

    2 min answer postmanreproducibilityprovenancedependencies
  10. Build Reproducibility intermediate

    A team proposes making every build hermetic - pinned toolchains and dependencies, no network access during the build, byte-identical output from the same commit. What does that buy and what does it cost?

    3 min answer build-reproducibilityhermetic-buildssupply-chaincaching
  11. Build Reproducibility intermediate Multiple choice

    A team wants the same commit to produce a bit-identical container image on any machine, any day. Which single change contributes most?

    3 min answer reproducibilitypinningdigestsdeterminism
  12. Build Reproducibility advanced

    Why do reproducible builds matter beyond supply-chain security, and what makes them hard?

    2 min answer reproducibilitydeterminismcachingdebugging