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2707 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 areas2707 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture78 Reliability & Resilience88 Observability81 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 Architecture90 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

6 questions in Testing & Quality Architecture.

  1. Flaky Test Management beginner Multiple choice

    One integration test fails only in CI, only on Tuesdays, only in the 00:30 UTC scheduled run. It passes locally and on every pull-request run. What do you look at first?

    2 min answer flaky-testsclockdiagnosisquarantine
  2. Non-Functional Test Strategy beginner

    A requirements document says "the system must be highly available and performant". How do you turn that into something testable?

    2 min answer nfrrequirementstesting
  3. Security Testing in the Pipeline beginner

    A dependency scanner reports a critical vulnerability in a library your application includes. Reading the advisory, the flaw is in a parser your code never calls. Why does the scanner report it anyway, and what should that change about how you triage?

    3 min answer dependency-scanningsbomreachabilitytriage
  4. Test Pyramid Shapes beginner Multiple choice

    A team has 3200 unit tests that run in 90 seconds, 40 integration tests and 12 end-to-end tests. Over six months it shipped 19 defects to production and 14 of them were wiring faults - a wrong column name in a query, a header the downstream service rejected, a queue bound to the wrong exchange. Which change to the suite's shape actually addresses that?

    3 min answer test-pyramiddefect-escapeintegration-testswiring-defects
  5. Test Pyramid Shapes beginner Multiple choice

    A team's pull-request suite has grown from 4 minutes to 26 minutes over a year, because every bug fix added a test and nothing was ever removed. No one has ever proposed deleting a test. What has the team given up, and which policy fixes it?

    2 min answer ci-feedback-timetest-budgetbatch-sizesuite-growth
  6. Test Pyramid Shapes beginner

    Two tests exercise the same line of code. One starts the process and drives the HTTP API; the other calls the function directly. Once you look at the failure signal rather than the code covered, what actually distinguishes them?

    2 min answer test-pyramidfeedback-loopdiagnosisci