Quiz

2741 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 areas2741 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture78 Reliability & Resilience99 Observability92 Performance & Capacity Engineering90 Security Architecture95 Cost Architecture & FinOps92 Business Architecture93 Architecture Communication91 Enterprise Architecture91 Legacy Modernization92 AI-Era Architecture96 Software Architecture & Engineering84 Architecture Patterns84 Architecture Decision-Making91 The Architect's Meta-Skills92 Delivery & Release Engineering93 Platform Engineering & Developer Experience92 Testing & Quality Architecture102 Data Platform Architecture98 Streaming & Real-Time Data93 Data Governance & Semantics91 Frontend & Experience Architecture91 Edge, Mobile & IoT88 Regulatory & Data Protection Architecture90 Assurance, Audit & Model Risk98

Difficulty Any beginner intermediate advanced

2741 questions.

Quiz

Netflix personalises an entire home page in the time a TV takes to draw a screen. How, given that scoring every title for every member on request is impossible?

Uber indexes the world with hexagons rather than squares for surge pricing and dispatch. Why does the shape matter, and what is the general lesson?

A catalogue harvests column-level lineage by parsing the orchestrator's job definitions. A version upgrade changes one job format and the parser silently skips those jobs. The catalogue reports no error. What happens over the next three months?

A company deploys a data catalogue. Six months later almost nobody uses it and most entries are stale. What went wrong, and what would make it work?

An organisation deploys a data catalogue and nobody uses it. What makes a catalogue useful rather than an inventory?

You bought a data catalogue eighteen months ago. It is populated and nobody uses it. What went wrong?

A consumer finance platform wants to apply controls proportionate to data sensitivity. How should classification work so it actually drives behaviour?

A data platform labels tables as public internal confidential or restricted in its catalogue. Six months on an auditor finds restricted columns in a dashboard that 400 people can open. Which control would have actually prevented it?

A developer needs to reproduce a bug that only occurs with a specific customer's data. What do you allow?

A platform handles customer addresses, payment details, order history, retailer pricing and shopper location. Why does data classification matter architecturally, and what goes wrong without it?

A support tool shows ` 4242`. A product manager asks to display the full card number for identity verification. The database stores the full number encrypted with a managed key. Which change actually reduces PCI DSS scope?

Quiz

Netflix personalises an entire home page in the time a TV takes to draw a screen. How, given that scoring every title for every member on request is impossible?

Uber indexes the world with hexagons rather than squares for surge pricing and dispatch. Why does the shape matter, and what is the general lesson?

A catalogue harvests column-level lineage by parsing the orchestrator's job definitions. A version upgrade changes one job format and the parser silently skips those jobs. The catalogue reports no error. What happens over the next three months?

A company deploys a data catalogue. Six months later almost nobody uses it and most entries are stale. What went wrong, and what would make it work?

An organisation deploys a data catalogue and nobody uses it. What makes a catalogue useful rather than an inventory?

You bought a data catalogue eighteen months ago. It is populated and nobody uses it. What went wrong?

A consumer finance platform wants to apply controls proportionate to data sensitivity. How should classification work so it actually drives behaviour?

A data platform labels tables as public internal confidential or restricted in its catalogue. Six months on an auditor finds restricted columns in a dashboard that 400 people can open. Which control would have actually prevented it?

A developer needs to reproduce a bug that only occurs with a specific customer's data. What do you allow?

A platform handles customer addresses, payment details, order history, retailer pricing and shopper location. Why does data classification matter architecturally, and what goes wrong without it?

A support tool shows `**** **** **** 4242`. A product manager asks to display the full card number for identity verification. The database stores the full number encrypted with a managed key. Which change actually reduces PCI DSS scope?

A support tool shows ` 4242`. A product manager asks to display the full card number for identity verification. The database stores the full number encrypted with a managed key. Which change actually reduces PCI DSS scope?