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Quiz

2777 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 areas2777 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture87 Reliability & Resilience99 Observability92 Performance & Capacity Engineering90 Security Architecture95 Cost Architecture & FinOps92 Business Architecture93 Architecture Communication91 Enterprise Architecture100 Legacy Modernization92 AI-Era Architecture96 Software Architecture & Engineering93 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 Architecture99 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

93 questions in Delivery & Release Engineering.

  1. Flow Metrics advanced

    Delivery leadership says releases are too slow and wants the engineering team to "move faster". Lead time from commit to production is 21 days. How do you investigate, and what do you expect to find?

    2 min answer flowdeliverylead-timequeues
  2. Flow Metrics intermediate

    Which delivery flow metrics reveal where the constraint actually is, and what do they typically show?

    2 min answer flow-metricslead-timewait-timeconstraints
  3. GitOps intermediate

    A platform adopts a declarative, git-driven deployment model. What does it improve, and what does it not solve?

    2 min answer gitopsdeclarativedriftreconciliation
  4. GitOps intermediate

    A platform manages infrastructure declaratively and production has diverged from the declarations. Is that a failure of discipline?

    2 min answer rendergitopsdriftincident
  5. GitOps advanced

    During an incident an engineer edits a live Kubernetes resource and the change is reverted a minute later by the GitOps controller. The incident continues. What is your position?

    2 min answer gitopsincidentoperationsreconciliation
  6. GitOps advanced

    On 14 March 2023 a Kubernetes upgrade at Reddit caused an outage of about 314 minutes. The upgrade removed a node label that an internal network component had been selecting on, and that component's configuration had been hand-edited through a CLI and committed nowhere. Where do you start investigating, and what is the diagnosis?

    3 min answer redditgitopsundocumented-statekubernetes
  7. GitOps intermediate

    You are adopting GitOps. Someone asks how secrets work, since the repository is the source of truth. What are the options and which do you choose?

    2 min answer gitopssecretssecurity
  8. IaC Modules & Drift intermediate

    An organisation's infrastructure code has become a sprawl of copied configurations. What module strategy works, and how is drift handled?

    2 min answer iacmodulesdriftreuse
  9. IaC Modules & Drift advanced

    One Terraform state file holds 4,000 resources across networking, databases, Kubernetes and DNS for production. A plan takes 14 minutes, every change risks unrelated resources, and four teams contend for the lock. You must split it into per-domain states without destroying anything. What is the sequence?

    4 min answer terraformstatemigrationblast-radius
  10. IaC Modules & Drift beginner

    You run `terraform plan` on a production workspace where nothing has been committed for three weeks. The plan proposes 23 changes. Nobody has touched the console. Why does this happen, and what should you do about each kind?

    3 min answer driftterraformprovidersdefaults
  11. IaC Modules & Drift intermediate

    Your infrastructure drift detection fires 200 alerts a day. The team has muted it. How do you make it useful again?

    2 min answer iacdriftalerting
  12. Multi-Region Rollout advanced

    A change must be rolled out across many regions. How should the sequence be designed, and what makes region-by-region rollout fail to provide the safety it appears to?

    2 min answer multi-regionrolloutblast-radiuscontrol-plane