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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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