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Entity Framework interview questions

Entity Framework interview questions.

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  • 1.

    Explain what is ADO.NET entity framework?

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  • 2.

    What are the benefits of using EF?

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  • 3.

    What is Entity Framework?

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  • 4.

    What is Storage Model?

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  • 5.

    What are scalar and navigation properties in Entity Framework?

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  • 6.

    What is Conceptual Model?

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  • 7.

    What is the purpose of a DBContext class?

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  • 8.

    Mention in what all scenarios Entity Framework can be applicable?

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  • 9.

    How can we read records using Entity Framework classes?

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  • 10.

    What is Mapping?

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  • 11.

    What is migration in Entity Framework?

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  • 12.

    What is Code First approach in Entity Framework?

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  • 13.

    Mention what is Code First approach and Model First Approach in Entity Framework?

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  • 14.

    What are the different ways of creating these domain / entity objects?

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  • 15.

    What is pluralize and singularize in the Entity Framework?

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  • 16.

    What are POCO classes in Entity Framework?

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  • 17.

    What is eager loading?

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  • 18.

    What are the advantages of Model First Approach?

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  • 19.

    Explain how you can load related entities in EF?

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  • 20.

    What is the role of Entity Client Data Provider?

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  • 21.

    How can we handle concurrency in Entity Framework?

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  • 22.

    Explain Lazy loading, Eager Loading, and Explicit Loading?

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  • 23.

    What are the advantages/disadvantages of Code First Approach?

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  • 24.

    What is Optimistic locking?

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  • 25.

    What are the components of Entity Framework Architecture?

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  • 26.

    Could you explain the difference between Optimistic vs Pessimistic locking?

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  • 27.

    What is the importance of EDMX file in Entity Framework?

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  • 28.

    What are complex types in Entity Framework?

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  • 29.

    What are the different approaches supported in the Entity Framework to create Entity Model?

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  • 30.

    Can you explain lazy loading in a detailed manner?

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  • 31.

    What is EF Data Access Architecture?

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  • 32.

    What are the advantages and disadvantages of Database First Approach?

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  • 33.

    How do I delete multiple rows in Entity Framework (without foreach)?

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  • 34.

    What’s the difference between LINQ to SQL and Entity Framework?

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  • 35.

    Could you explain pessimistic locking?

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  • 36.

    What is the difference between POCO, Code First, and simple EF approach?

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  • 37.

    What is the difference between Code First, Model First and Database First?

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  • 38.

    What is the difference between ObjectContext and DbContext?

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  • 39.

    What is faster - ADO.NET or ADO.NET Entity Framework?

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  • 40.

    How can you enhance the performance of Entity Framework?

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  • 41.

    What type of system generated messages do you know?

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  • 42.

    Can you explain CSDL, SSDL and MSL sections in an EDMX file?

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  • 43.

    What are T4 templates?

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  • 44.

    Is DbContext thread safe?

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  • 45.

    What are the disadvantages of using static DbContext?

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  • 46.

    Which type of loading is good in which scenario?

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  • 47.

    When would you use EF6 vs EF Core?

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  • 48.

    Name some differences between Express vs Recoverable messages

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  • 49.

    Can I use Entity Framework 6 (not core) in .Net Core?

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  • 50.

    What is the difference between Automatic Migration vs Code-base Migration?

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  • 51.

    What are the advantages and disadvantages of creating a global entities context for the application (i.e. one static instance)?

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  • 52.

    How can we do pessimistic locking in Entity Framework?

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  • 53.

    When would you use SaveChanges(false) + AcceptAllChanges()?

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  • 54.

    What difference does .AsNoTracking() make?

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  • 55.

    What is client wins and store wins mode in Entity Framework concurrency?

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  • 56.

    What's the difference between .SaveChanges() and .AcceptAllChanges()?

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  • 57.

    How do I view the SQL generated by the Entity Framework?

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