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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

5 questions in Data Migration Strategies.

  1. Data Migration Strategies beginner

    A 6 TB order history must be backfilled into a new store before cutover. The link sustains 1 Gbps and the target ingests about 40 MB/s per writer. Roughly how long is the backfill, and which assumption decides whether it fits one weekend?

    2 min answer backfillcapacity-planningmigrationiops
  2. Data Migration Strategies advanced

    A platform must migrate very large volumes of file data between storage systems. Which strategies apply, and what dominates the schedule?

    2 min answer data-migrationbulk-transferverificationcutover
  3. Data Migration Strategies advanced

    A shipping platform must migrate years of order and tracking data to a new store. What strategy handles both the historical bulk and the ongoing changes?

    2 min answer shiprocketdata-migrationcdcbackfill
  4. Data Migration Strategies advanced

    Month 1 of a migration, the reference tables for currency and tax class are copied to the new store and verified row for row. Month 9, a regulator forces a new tax class into the legacy system. Month 11, the new system starts rejecting about 1 order in 400 with a validation error nobody can reproduce in test. What failed, and which design decision made it possible?

    3 min answer reference datadriftcoexistencevalidation
  5. Data Migration Strategies advanced

    The source data contains records that violate the target's constraints. How do you handle it and who decides?

    2 min answer data-migrationqualityprofilingbusiness-decisions