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2988 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 areas2988 Architecture Fundamentals91 Distributed Systems111 Data Architecture100 Cloud Architecture97 Networking96 API & Integration Architecture97 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

5 questions in Encryption.

  1. Encryption advanced

    A file storage platform encrypts data at rest and in transit. A customer asks whether the provider can read their files. What does the honest answer depend on, and what would change it?

    2 min answer encryptionkey-managementend-to-endthreat-model
  2. Encryption intermediate Multiple choice

    A regulator asks whether customer data is encrypted. The team says yes, disks are encrypted. Is that a sufficient answer?

    2 min answer encryptionthreat-modelcompliance
  3. Encryption intermediate Multiple choice

    A restricted column must be encrypted in the application before it reaches the database, and support staff must still look customers up by that exact value. 30 million rows and a p95 budget of 200 ms for the lookup. Which design?

    2 min answer field-level-encryptionblind-indexdeterministic-encryptionsearchable-encryption
  4. Encryption beginner Multiple choice

    An attacker obtains the application's database credential from a leaked environment file and runs a SELECT against the customer table. Every volume is encrypted at rest with a managed key service and every connection uses TLS. What does that encryption prevent here?

    3 min answer encryptionat restthreat modelaccess control
  5. Encryption intermediate Multiple choice

    Your database is encrypted at rest. An attacker obtains valid application credentials. What does the encryption protect against?

    2 min answer encryptionthreat-modelkey-managementat-rest