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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

62 questions in Assurance, Audit & Model Risk.

  1. Segregation of Duties advanced

    On 27 July 2012 a Knight Capital technician deployed new order-routing code to seven of eight production servers. The eighth kept older code that a repurposed flag then activated on 1 August, and the firm booked a pre-tax loss of about $440 million in roughly 45 minutes. The SEC noted it had no written deployment procedures and no peer review of deployments. Which control would have prevented it, and which would only have reduced the damage?

    2 min answer knight capitaldeploymentsegregation of dutiesverification
  2. Segregation of Duties advanced

    On 5 April 2022 an Atlassian maintenance script deleted 883 customer sites belonging to 775 customers in about 23 minutes. Restoration ran until 18 April, up to 14 days for some customers, although no customer lost more than about five minutes of data. What failed, and which design decisions made that gap between deleting and restoring possible?

    2 min answer atlassianblast-radiussoft-deleterestore