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Quiz

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

4 questions in Authentication.

  1. Authentication advanced

    A multi-product company must unify authentication across products that each built their own login. What is the migration risk, and how is it sequenced?

    2 min answer authenticationidentitymigrationsso
  2. Authentication advanced Multiple choice

    For service-to-service authentication inside a cluster, would you use mTLS, OAuth client credentials, or both?

    2 min answer mtlsoauthservice-identity
  3. Authentication advanced

    In 2022 the same SMS phishing campaign hit Twilio and Cloudflare within days of each other. Twilio reported unauthorised access to data belonging to around 209 of its roughly 270000 customer accounts. Cloudflare reported that three employees entered credentials on the fake page and that no systems were compromised. What structural difference produced two different outcomes?

    3 min answer twiliocloudflarephishingfido2
  4. Authentication advanced

    You must roll out MFA to 40,000 employees. Security wants hardware keys; the service desk fears the call volume. Design the rollout.

    2 min answer mfaphishing-resistantrolloutrisk