Senior
EF Core Internals Interview Questions
Senior-level EF Core internals interview questions on change tracking, identity resolution, query translation, compiled models and interceptors.
Data & Persistence
Data access interview questions: EF Core internals and performance, transactions and isolation levels, SQL optimization, NoSQL, repository pattern, zero-downtime migrations and Dapper.
8 interview guides · 80 questions with detailed answers
Data decisions outlive code decisions. Senior candidates are expected to reason about change tracking and query translation in EF Core, choose isolation levels deliberately, read execution plans, and design partition keys for NoSQL stores.
You should also be able to ship schema changes without downtime. These questions reflect how that expertise is tested.
Senior
EF Core Performance Interview Questions
Senior EF Core performance interview questions on N+1 queries, split queries, tracking, bulk updates, compiled queries and DbContext pooling.
Senior
Transactions, Isolation Levels and Concurrency Control Interview Questions
Senior interview questions on ACID, isolation levels, RCSI and snapshot isolation, optimistic concurrency, distributed transactions and deadlocks.
Architect
SQL Query Optimization Interview Questions for .NET Architects
Architect-level SQL Server interview questions on indexing, execution plans, parameter sniffing, statistics, Query Store, partitioning and sharding.
Architect
NoSQL and Polyglot Persistence Interview Questions
Architect-level interview questions on choosing data stores, Cosmos DB partition keys, RU costs, consistency levels and polyglot persistence trade-offs.
Senior
Repository and Unit of Work Pattern Interview Questions
Senior .NET interview questions on the repository and unit of work patterns, generic repository pitfalls, the specification pattern and CQRS reads.
Lead
Zero-Downtime Database Migration Interview Questions
Lead-level interview questions on zero-downtime database migrations, expand-contract, online indexes, safe backfills and running EF Core in pipelines.
Senior
ADO.NET and Dapper Interview Questions
Senior .NET interview questions on ADO.NET and Dapper covering connection pooling, DataReader streaming, SqlBulkCopy, multi-mapping and SQL injection.
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