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Quiz

2988 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 areas2988 Architecture Fundamentals91 Distributed Systems111 Data Architecture100 Cloud Architecture97 Networking96 API & Integration Architecture97 Reliability & Resilience99 Observability92 Performance & Capacity Engineering100 Security Architecture105 Cost Architecture & FinOps102 Business Architecture103 Architecture Communication102 Enterprise Architecture100 Legacy Modernization102 AI-Era Architecture106 Software Architecture & Engineering93 Architecture Patterns94 Architecture Decision-Making101 The Architect's Meta-Skills102 Delivery & Release Engineering103 Platform Engineering & Developer Experience102 Testing & Quality Architecture102 Data Platform Architecture98 Streaming & Real-Time Data103 Data Governance & Semantics91 Frontend & Experience Architecture101 Edge, Mobile & IoT98 Regulatory & Data Protection Architecture99 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

4 questions in Evolutionary Architecture.

  1. Evolutionary Architecture advanced

    A design platform's rendering service was built for single-page exports. Over three years it accumulated video, animation, bulk export and print output - each bolted onto the same synchronous request path. Exports now time out unpredictably. How should evolutionary architecture have prevented this, and what do you do now?

    2 min answer evolutionary-architecturerenderingcanvaasync
  2. Evolutionary Architecture advanced

    A frequently written table needs a column renamed and its type changed. The service runs many instances and cannot be stopped. How do you do it and remain able to roll back at every step?

    3 min answer migrationszero-downtimeexpand-contractevolutionary
  3. Evolutionary Architecture advanced

    A services marketplace launches in one city with one category. Three years later it runs dozens of categories across many cities with different pricing and compliance rules. What should have been built on day one, and what should deliberately not have been?

    2 min answer evolutionary-architectureurban-companymarketplacelast-responsible-moment
  4. Evolutionary Architecture intermediate

    A team ships one release every three weeks containing about 60 merged changes. A conversion regression appears after the latest release and nobody knows which change caused it. Estimate the time to attribute the regression at a batch size of 60 against a batch size of 1, and say which number to target first.

    2 min answer etsydeploymentbatch sizemean time to repair