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

2948 questions.

Quiz

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 change must be rolled out across many regions. How should the sequence be designed, and what makes region-by-region rollout fail to provide the safety it appears to?

A configuration or code change must reach many regions or edge locations. What rollout properties matter most?

A globally distributed platform must roll out a change across regions. What order and what controls?

You own the system that rolls changes out to thirty regions. During an incident the commander asks how fast you can get a fix everywhere. Walk me through your answer.

Your deployment updates all four regions in parallel to keep versions consistent. Argue for or against.