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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

1029 questions.

  1. Time to Market intermediate

    A retailer's new product category launches on schedule for the seasonal peak. The software works. Within two weeks, returns processing is a month behind, finance cannot reconcile settlements, and support handling time has doubled. What went wrong, and what does it say about time to market?

    3 min answer launchoperations readinessprocesscross-functional
  2. Time to Market intermediate

    Your time to market is eight weeks. How would you find out where it actually goes?

    2 min answer time-to-marketflowmeasurementconstraint
  3. Timeouts & Deadlines intermediate

    A service becomes unresponsive during an incident in a dependency it barely uses. Investigation finds the client had no read timeout. Explain the full mechanism.

    2 min answer timeoutspoolscascading-failure
  4. Timeouts & Deadlines intermediate

    Every service in your estate uses the client library's default timeout of 30 seconds. Why is that dangerous, and what would you set instead?

    2 min answer timeoutsresiliencecapacity
  5. TLS & Certificates intermediate

    A partner reports your API fails from their servers with a certificate error. It works in every browser you try and from your laptop. Diagnose and prevent.

    1 min answer tlschainincidentmonitoring
  6. TLS & Certificates intermediate

    A production outage was caused by an expired internal certificate. Nobody was tracking it. Design the fix.

    2 min answer tlsoperationsautomation
  7. TLS & Certificates intermediate

    An internal service-to-service certificate expires at 02:00 on a Sunday. What is the impact and what should have prevented it?

    2 min answer tlsautomationmonitoringoutage
  8. TLS & Certificates intermediate

    Ballot SC-081v3 cut the maximum public TLS certificate lifetime to 200 days from 15 March 2026, with 100 days from March 2027 and 47 days from March 2029. A team currently renews its 400 public certificates by quarterly ticket. What does the shorter ceiling buy, and what is the bill?

    2 min answer tlscertificatesacmeautomation
  9. TLS & Certificates intermediate

    Where should TLS terminate in a platform serving customer traffic, and what changes when a compliance requirement demands encryption in transit inside the network?

    2 min answer hasuratlsmtlsservice-mesh
  10. TOGAF intermediate

    An organisation adopts a formal EA framework and produces extensive deliverables while decisions remain slow. How should such a framework be used?

    2 min answer togafframeworkspragmatismdeliverables
  11. TOGAF intermediate

    How would you use an enterprise architecture framework without producing shelfware?

    2 min answer togafframeworkartefactsdecisions
  12. Tokenisation & Masking intermediate Multiple choice

    A marketplace must stop storing raw phone numbers in its analytical estate. Analysts still need to join orders to support tickets by the same customer, and the company must be able to delete an individual's data on request. Which approach fits?

    2 min answer tokenisationhashingerasurejoinability