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Quiz

2707 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 areas2707 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 Architecture96 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 Architecture98 Streaming & Real-Time Data93 Data Governance & Semantics91 Frontend & Experience Architecture91 Edge, Mobile & IoT88 Regulatory & Data Protection Architecture90 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

45 questions in Platform Engineering.

  1. Self-Service Provisioning advanced

    A self-service database provisioning workflow takes 40 minutes and fails about 15% of the time. The platform team says the cloud provider's API is unreliable. Retrying the whole workflow usually works. What is actually going on, and what would you change?

    3 min answer provisioningidempotencyeventual consistencyorphaned resources
  2. Self-Service Provisioning advanced

    Your platform team is now a ticket queue — every environment, every permission, every new service goes through them. How do you get out of it?

    1 min answer platformself-servicebottleneckautomation
  3. Service Mesh Operations advanced

    A platform runs a service mesh. What are the operational realities teams underestimate?

    2 min answer service-meshoperationscontrol-planeupgrades
  4. Service Mesh Operations advanced Multiple choice

    A team proposes adopting a service mesh for twelve services in one language. Do you support it?

    2 min answer service-meshcomplexitydecision
  5. Service Mesh Operations advanced

    An Envoy-based mesh carries 600 services across 3000 pods. At 09:00 the mesh control plane is lost entirely and cannot be restored for 90 minutes. No application or node has failed. What happens over those 90 minutes, what sets the real deadline, and what would make the mesh ride it out?

    3 min answer service-meshenvoyxdsfail-static
  6. Service Mesh Operations advanced

    You must move the sidecar proxies of 500 services and 2400 pods from mesh version n-2 to n. The control plane supports one version of skew with its data plane and each proxy upgrade is a pod restart. Several services hold gRPC streams open for hours. Plan the migration so that no service sees an unplanned reset and you can stop at any point.

    3 min answer service meshenvoyupgradeversion skew
  7. Service Templates advanced

    A platform stops generating 400 lines of observability and deployment boilerplate into each new service repository and ships it instead as a versioned library plus a shared base chart that services depend on. Two hundred services will adopt it. What is gained and what is paid and when does the bill arrive?

    3 min answer service templatesshared libraryblast radiusversioning
  8. Service Templates advanced

    A platform's service template produced fifty services, and it has since improved substantially. How should improvements reach the existing services?

    2 min answer postmantemplatesdriftpropagation
  9. Service Templates advanced

    A vulnerability is found in the base image used by 200 services generated from your service template. How do they all get fixed?

    2 min answer platformsupply-chainfleet