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 Cohesion.

Quiz

A search company must decide where the rules deciding which documents are eligible to appear for a query should live - the crawler, the indexer, the query serving layer, or a dedicated component. Which choice best reflects cohesion?

A subscription-billing platform has an "invoice service" that generates invoices, sends dunning emails, computes tax, syncs to accounting systems and renders PDFs. Is that cohesive? How would you decide?

Every meaningful feature in a platform requires changes to at least nine services and three teams. Which architectural property has failed and what is the diagnostic?