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

87 questions in Cloud Architecture.

Quiz

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?

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?

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

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

A collaborative design tool has users in one document spread across continents, needing sub-100 ms feedback on every edit. Should the document's authoritative state be multi-region writable, single-region, or something else?

A global retailer wants a single product catalogue with sub-100ms writes from anywhere and strong consistency. Assess.

A globally distributed application routes users to nearby regions but holds state that cannot safely be duplicated. Which components should be regional, which globally replicated, and which operations should stop during a regional outage?

A multi-region active-active deployment allows writes in every region. Classify entities by the conflict strategy each needs, and describe how cross-region failover should be tested.

After its October 2021 outage Roblox said it was moving to multiple availability zones and data centres from a single-data-centre footprint of more than 18000 servers and 170000 containers coordinated by one shared cluster. Sequence that migration under live traffic and say where it can go wrong.

Leadership asks for multi-region "for resilience". What do you establish before designing anything?

A news organisation's publishing pipeline runs rarely during quiet periods and intensely around major events, performing image processing, rendering and distribution. Where does serverless fit, and where would it be a mistake?