Quiz

2908 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 areas2908 Architecture Fundamentals91 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture87 Reliability & Resilience99 Observability92 Performance & Capacity Engineering100 Security Architecture95 Cost Architecture & FinOps102 Business Architecture103 Architecture Communication102 Enterprise Architecture100 Legacy Modernization92 AI-Era Architecture96 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

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4 questions in Data Contracts.

Quiz

A data platform introduces data contracts and pipelines still break when producers change schemas. What was missing?

A producer team renames a column. The data contract is defined and the contract test is green. Three hours later four downstream models fail and a board dashboard is blank. The test lived in the consumer's repository and ran on the consumer's schedule. What is the structural defect?

A schema change in one team's service breaks four downstream data consumers overnight. The contract existed. What failed?

You propose data contracts. An application team says "we are not a data team, our database is our own business". How do you respond?