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Aporeon interview preparation

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EF Core Practical Data Access Labs

Diagnostics & Scale

Bounded imports, query tagging, generated SQL inspection, and safe tenant state with context pooling.

3 drillsPractice one at a timeOrdered pathCoding problem

Recommended start

Bounded EF Import

Processes a large import in chunks with fresh DbContexts, idempotent keys, cancellation, and bounded tracker growth.

Hard~35 minStep 1 of 3

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1Bounded EF ImportRecommended startProcesses a large import in chunks with fresh DbContexts, idempotent keys, cancellation, and bounded tracker growth.Coding problemHard~35 min.NETASP.NET CoreC#Practice 2Tag Slow QueryAdds a stable query tag and inspects generated SQL without embedding user data or enabling unsafe global logging.Coding problemMedium~25 min.NETASP.NET CoreC#Practice 3Pooled Tenant ContextWraps a pooled DbContext factory so every request assigns tenant state before a global query filter can run.Coding problemHard~35 min.NETASP.NET CoreC#Practice

Practice order

3 drillsOne at a time

1Bounded EF ImportUp next / Hard / ~35 min
2Tag Slow QueryMedium / ~25 min
3Pooled Tenant ContextHard / ~35 min