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

Difficulty Any beginner intermediate advanced

5 questions in Rebuild vs Re-architect.

Quiz

A 15-year-old system is unmaintainable. The team wants a full rewrite. What do you advise?

A platform's core system cannot support a capability the business needs. The team proposes a rebuild. What must be true for rebuild to beat incremental re-architecture?

An organisation running Kafka at trillions of messages per day concludes the coordination and rebalancing model no longer fits and builds a replacement. What evidence should exist before replacing a proven system rather than tuning it?

Review this plan. Eighteen months to rebuild the policy engine. Feature parity is required before any traffic moves. The legacy team is frozen to bug fixes only so that no effort is wasted on code that will be thrown away. What would you remove, what would you change, and what would you leave alone?