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

4 questions in Privacy Engineering.

Quiz

A consumer platform with 40 million accounts receives about 600 subject access requests a month. Honouring one means assembling a person's data from 23 services that each own their own store. Estimate what the manual path costs and say what changes the number by an order of magnitude.

A discovery platform builds personalisation from user behaviour. What privacy-engineering decisions must be made early, and which are expensive to retrofit?

Design the mechanism by which a deletion request propagates through a system with a warehouse, a search index, backups and three third-party processors.

Product wants to add "customers who bought this also bought" using purchase history. What does privacy by design require here?