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Quiz

3114 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 areas3114 Architecture Fundamentals91 Distributed Systems111 Data Architecture100 Cloud Architecture97 Networking96 API & Integration Architecture97 Reliability & Resilience99 Observability102 Performance & Capacity Engineering100 Security Architecture105 Cost Architecture & FinOps102 Business Architecture103 Architecture Communication102 Enterprise Architecture111 Legacy Modernization102 AI-Era Architecture106 Software Architecture & Engineering103 Architecture Patterns94 Architecture Decision-Making112 The Architect's Meta-Skills113 Delivery & Release Engineering103 Platform Engineering & Developer Experience102 Testing & Quality Architecture113 Data Platform Architecture108 Streaming & Real-Time Data103 Data Governance & Semantics101 Frontend & Experience Architecture112 Edge, Mobile & IoT109 Regulatory & Data Protection Architecture109 Assurance, Audit & Model Risk108
Difficulty Any beginner intermediate advanced

3114 questions.

  1. Rendering Strategies intermediate

    A content site adds a vendor exit-survey tag that registers an unload listener. Nothing breaks in testing. Over the following week, the share of back navigations that complete instantly collapses, origin requests rise about 15%, and the site's field largest contentful paint at the 75th percentile gets worse without any page becoming slower. Walk through what happened.

    3 min answer bfcacheback-navigationthird-party-scriptsfield-metrics
  2. Rendering Strategies intermediate

    A marketing site is a client-rendered single-page application. Organic traffic is poor and the team blames the search engine. What is your assessment?

    1 min answer frontendrenderingseoperformance
  3. Rendering Strategies advanced Multiple choice

    A news site has article pages read by millions, a homepage updated constantly, and a subscriber account section. Should it pick one rendering strategy?

    1 min answer renderingssgssrcaching
  4. Rendering Strategies intermediate

    A team must choose between static generation, incremental regeneration, server rendering and client rendering for different parts of a product. What decides each, and what is the common mistake?

    2 min answer ssrssgisrcsr
  5. Rendering Strategies advanced

    At Kafka Summit in May 2017, The New York Times described a publishing pipeline in which every piece of published content is appended to a Kafka log that is the source of truth, and the systems behind each reading experience are built by consuming that log. That buys a rendering strategy most sites cannot afford. What does it buy exactly, and when does the bill arrive?

    3 min answer new-york-timeslog-as-source-of-truthstatic-renderingcdn
  6. Replatforming intermediate

    A marketplace replatforms a service from a self-managed database to a managed one. What benefits are real, what constraints appear, and what must be verified first?

    2 min answer replatformmanaged-servicesconstraintsmigration
  7. Replatforming advanced

    A media platform in the mould of Canva moves its self-managed Kafka cluster - 24 brokers, about 1800 partitions, 7-day retention, roughly 9 TB on disk - onto a managed streaming service, to free the two engineers who keep it running. What have they given up, and when does that bill arrive?

    3 min answer replatformmanaged serviceskafkaunit economics
  8. Replatforming intermediate

    A team replatforms a self-managed database onto a managed service in six weeks and the project lands on time. Eighteen months later they are running an unplanned major-version upgrade over a weekend because the provider's standard support for their engine version ends. What did the replatform actually trade away, and when does that bill arrive?

    3 min answer replatformmanaged servicesupgradesend of support
  9. Replatforming advanced

    You have twelve weeks and a large estate. Which replatforming changes do you make and why those?

    2 min answer replatformmanaged-servicesprioritisationoperational-burden
  10. Replication intermediate

    A marketplace seller edits a listing and is immediately shown the old version, because the read went to a replica. What are the options, and how should the choice be made?

    2 min answer replicationread-your-writesconsistencyebay
  11. Replication intermediate

    An analytics platform's database is write-bound rather than read-bound. The team adds read replicas and nothing improves. Why, and what should be done instead?

    2 min answer posthogwrite-boundreplicasingestion
  12. Replication advanced

    Users report seeing stale data intermittently. Replication lag is normally under a second but spikes to minutes twice a day. How do you handle it?

    2 min answer replicationlagroutingconsistency