Portfolio ↗

Quiz

2948 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 areas2948 Architecture Fundamentals91 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking96 API & Integration Architecture87 Reliability & Resilience99 Observability92 Performance & Capacity Engineering100 Security Architecture105 Cost Architecture & FinOps102 Business Architecture103 Architecture Communication102 Enterprise Architecture100 Legacy Modernization102 AI-Era Architecture106 Software Architecture & Engineering93 Architecture Patterns94 Architecture Decision-Making101 The Architect's Meta-Skills102 Delivery & Release Engineering103 Platform Engineering & Developer Experience102 Testing & Quality Architecture102 Data Platform Architecture98 Streaming & Real-Time Data103 Data Governance & Semantics91 Frontend & Experience Architecture101 Edge, Mobile & IoT98 Regulatory & Data Protection Architecture99 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

5 questions in Multi-Cloud.

  1. Multi-Cloud advanced

    A payments company moves to serving live traffic from two cloud providers at once so that no single provider outage can stop payments. Twelve months later measured availability is lower than it was on one provider and there has been no provider outage. What did they buy and what did they pay?

    3 min answer multi-cloudavailability-mathentity-homingfailover
  2. Multi-Cloud advanced

    An AI company needs enormous accelerator capacity that no single provider can supply on the timeline required. Is this a valid reason for multi-cloud, and what does it cost compared with the usual multi-cloud justifications?

    2 min answer multi-cloudcapacitygpulock-in
  3. Multi-Cloud advanced

    An organisation proposes a multi-cloud architecture for resilience. What evidence would justify it, and what does it actually cost?

    2 min answer druvamulti-cloudresilienceportability
  4. Multi-Cloud advanced

    Review this. A 40-engineer company runs on one provider but has banned managed services for portability - self-hosted Postgres and Kafka on Kubernetes, an S3-compatible object store on block volumes, and an in-house wrapper over two infrastructure-as-code providers. The claim is that it could move in a quarter. It has never run anything in a second provider. What would you remove, what would you change, and what would you leave alone?

    3 min answer multi-cloudlock-inmanaged-servicesarchitecture-review
  5. Multi-Cloud advanced

    The board mandates multi-cloud to avoid lock-in. What do you present back?

    2 min answer strategylock-incost