Portfolio ↗

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

2777 questions.

  1. End-to-End Test Economics advanced

    An end-to-end suite of 340 tests takes four hours and fails spuriously about half the time. The team wants to parallelise it. Is that the right move?

    2 min answer testinge2eflakinessstrategy
  2. End-to-End Test Economics advanced

    An organisation has a large end-to-end test suite that is slow, flaky and blocks releases. What is the economically correct shape, and how do you get there without losing coverage?

    2 min answer test-pyramidflakye2econtract-testing
  3. End-to-End Test Economics intermediate

    End-to-end tests fail intermittently and nobody owns them. QA says the developers broke them; developers say the tests are flaky. How do you resolve this?

    2 min answer testingownershipflakinessorganisation
  4. End-to-End Test Economics advanced

    How should the number of end-to-end tests be decided, and what is the honest accounting?

    2 min answer end-to-endcostflakinessvalue
  5. End-to-End Test Economics advanced

    Your 800-test end-to-end suite takes 90 minutes and fails roughly half the time for reasons unrelated to the change. The team re-runs until green. What do you do?

    2 min answer testingreliabilitystrategy
  6. Presenting to Engineers intermediate

    A platform team's documentation is comprehensive and its users still ask questions it answers. What is wrong with the writing?

    2 min answer dbt-labsdocumentationdeveloper-experiencestructure
  7. Presenting to Engineers intermediate

    An architect's design is technically sound and the engineering team resists implementing it. What is usually the communication failure?

    2 min answer communicationbuy-inrationaleengineers
  8. Presenting to Engineers advanced

    How do you get a team to adopt an approach they initially disagree with?

    2 min answer influencecredibilityreasoningcollaboration
  9. Presenting to Engineers intermediate

    Six weeks after a design was agreed, three of its four key decisions are implemented differently and nobody raised it. The document has 18 comments with 16 of them from two people, 11 of 14 engineers opened it once, and the decision record was merged with two approvals in under four minutes. What do you conclude, which signal is misleading, and what would have caught this in week one?

    3 min answer design documentsreviewapprovalsdivergence
  10. Enterprise Architecture advanced

    An enterprise architecture function has produced extensive documentation over three years and business leaders question its value. What is the function doing wrong?

    2 min answer enterprise-architecturevaluedecisionsdocumentation
  11. Enterprise Architecture advanced

    You inherit an estate of roughly 400 applications, no reliable inventory, and a mandate to reduce cost and risk. What do you do in the first ninety days?

    2 min answer portfoliorationalisationgovernancemodernization
  12. Enterprise Integration advanced

    A workforce platform must integrate with hundreds of external systems with wildly different reliability. What integration architecture scales, and what does not?

    2 min answer ripplingdeelintegrationisolation