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2908 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 areas2908 Architecture Fundamentals91 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture87 Reliability & Resilience99 Observability92 Performance & Capacity Engineering100 Security Architecture95 Cost Architecture & FinOps102 Business Architecture103 Architecture Communication102 Enterprise Architecture100 Legacy Modernization92 AI-Era Architecture96 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

2 questions in Integration Test Boundaries.

  1. Integration Test Boundaries advanced

    Nine teams share one integration environment where all 34 services run together. The 900-test suite takes three hours and a red run is usually somebody else's deploy rather than a defect. You have been asked to move to per-service tests with virtualised dependencies without interrupting the fortnightly release train. What is the sequence, and where can it go wrong?

    3 min answer integration-test-boundariesshared-environmentmigrationtest-doubles
  2. Integration Test Boundaries advanced

    Where should integration tests draw their boundary - at the service, at the database, or at the external dependency?

    2 min answer temporalintegration-testsboundariesfakes