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2667 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 areas2667 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 Architecture86 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 Architecture88 Streaming & Real-Time Data93 Data Governance & Semantics81 Frontend & Experience Architecture91 Edge, Mobile & IoT88 Regulatory & Data Protection Architecture90 Assurance, Audit & Model Risk88
Difficulty Any beginner intermediate advanced

91 questions in Architecture Communication.

  1. Sequence Diagrams intermediate

    A logistics platform's engineers cannot explain what happens when a delivery is attempted and fails. What communication artefact would help most?

    2 min answer delhiverysequence-diagramflowsexceptions
  2. Sequence Diagrams intermediate

    A multi-step order flow with compensations is described in prose and nobody agrees on the behaviour. What does a sequence diagram add, and what must it show?

    2 min answer sequence-diagramsagafailure-pathsalibaba
  3. Sequence Diagrams intermediate

    Two engineers disagree about what happens when a customer cancels an order, and both have been on the team for years. Rather than settle it in the meeting, what do you do, and what will you probably find?

    2 min answer tracingsequence diagramdocumentationdrift
  4. Sequence Diagrams intermediate

    What can a sequence diagram show that a component diagram cannot, and what is the rule for drawing one worth having?

    2 min answer sequence-diagramlatencyfailure-pathscoupling
  5. Technical Proposals advanced

    A team must justify adopting a workflow engine to a sceptical audience who see it as unnecessary complexity. How should the case be made?

    2 min answer temporalcomplexityjustificationevidence
  6. Technical Proposals intermediate Multiple choice

    A team wants to change how search results are ranked on a consumer travel site. The change sits behind a flag and can be reverted in minutes and the guardrail metrics already exist. Which written artefact should they produce to get a decision?

    3 min answer technical-proposalsreversibilityexperimentationbooking.com
  7. Technical Proposals intermediate

    An engineer's technical proposal for a significant change is repeatedly deferred without a decision. How should the proposal be restructured?

    2 min answer proposalsdecision-forcingoptionswriting
  8. Technical Proposals intermediate

    An engineer's technical proposal is repeatedly sent back for more detail and still not approved. What is usually wrong with its structure?

    1 min answer hasuraproposalsstructuredecision
  9. Technical Proposals advanced

    Walk me through how you would write a technical proposal for a significant platform investment so that it gets a decision in one meeting rather than a fourth round of questions.

    3 min answer proposalsdecision makingstakeholdersreversibility
  10. Communicating Threat Models advanced

    A security review hands engineering 47 findings on a five-by-five likelihood-impact matrix: 9 high, 12 medium, 26 low, each with a numeric score and a risk-accepted column that three rows already use. Nine weeks later two findings are fixed. Review this pack. What would you remove, what would you change, and what would you keep even though it looks odd?

    3 min answer threat modelfindingsrisk matrixprioritisation
  11. Communicating Threat Models intermediate

    A security review produces findings that engineering teams dispute or ignore. How should the findings be communicated to be acted on?

    2 min answer freshworkssecurityfindingscommunication
  12. Communicating Threat Models advanced

    A security team stops scoring findings on a five-by-five likelihood-impact matrix and instead writes each one as a reachable attack path with the single change that closes it. Remediation throughput triples in a quarter. What has the organisation given up, and when does that bill arrive?

    2 min answer threat-modelrisk-registersecurity-communicationaudit