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.

Quiz

Your pipeline builds a container image from a tagged commit. Rebuilding the same tag two weeks later produces a different digest. The application behaves identically. Where does the difference come from, and which parts should you fix?

A regulated organisation's change management process requires approval for every production change, and the team wants continuous delivery. Are they compatible?

An enterprise change advisory process conflicts with continuous delivery. How can both requirements be met?

Most incidents in an organisation are caused by configuration changes rather than code deploys. How should configuration be versioned, canaried, validated and rolled back with the same rigour as code?

The business mandates a code freeze for all of December, the highest revenue month. Engineering objects. Who is right?

Your CAB meets weekly and every production change needs approval. Lead time is 9 days, of which 6 are waiting. The board will not simply be removed. What is your approach?

A merge queue tests each change against the current trunk plus the queue ahead of it, taking 20 minutes per run and merging serially. 60 engineers each want to merge twice a day. Estimate whether the queue can keep up, and say what you would change first.

A team has a CI system but not continuous integration. What is the difference, and what practices constitute the discipline?

A team merges to trunk several times a day and the main branch's build is broken for two or three days at a time. They have a CI server, a large test suite and a merge queue. Which change restores continuous integration?

Your CI retries a failed test up to three times before reporting a stage red. Trunk has been green for eleven straight weeks. Twice this quarter a bug reached production that an existing test had in fact failed on, and p50 pipeline duration is unchanged. Where do you look, and what is the diagnosis?

A platform gates schema changes through a reviewable, revertible "deploy request" rather than allowing direct DDL. What does this buy, and what must the mechanism provide?

A release must rename a heavily used database column and ships tonight. The team proposes doing the rename in the deployment. What is wrong, and what do you propose?