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ADO.NET interview questions

ADO.NET interview questions.

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1.

What is ADO.NET?

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2.

What is the basic difference between ADO.NET and Entity Framework?

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3.

What is the SqlCommandBuilder?

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What is exactly meaning of disconnected and connected approach in ADO.NET?

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What is the DataAdapter Object in ADO.NET?

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How can you define the DataSet structure?

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What do you understand by DataRelation class?

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8.

What are the ADO.NET components?

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9.

What is SqlCommand Object?

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What is Connection Pooling in ADO.NET?

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11.

Describe when you would use the DataView in ADO.NET?

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12.

What is Unit Of Work?

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13.

Mention what is the difference between ADO.NET and classic ADO?

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14.

What is the difference between DataView, DataTable and DataSet?

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What are the differences between using SqlDataAdapter vs SqlDataReader for getting data from a DB?

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16.

What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?

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17.

What is the difference between Integrated Security = True and Integrated Security = SSPI?

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18.

Could you explain me some of the main differences between Connection-oriented access and connectionless access in ADO.NET?

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19.

How could you control connection pooling behavior?

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20.

Is it necessary to manually close and dispose of SqlDataReader?

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21.

Where should I use disconnected architecture approach?

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22.

Could you explain some benefits of Repository Pattern?

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23.

How could you monitor connection pooling behavior?

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24.

What is the difference between ADODB, OLEDB and ADO.NET?

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25.

Is there anything faster than SqlDataReader in .NET?

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26.

What's better: DataSet or DataReader?

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27.

Can you explain the difference between a DataReader, a DataAdapter, a Dataset, and a DataView?

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28.

What is the difference between OLE DB and ODBC data sources?

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29.

Where should I use connected architecture approach?

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30.

Name types of transactions in ADO.NET

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31.

Under what scenarios would setting pooling=false in an ADO.NET connection string be of value when connecting to SQL Server?

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32.

What is the best and fast way to insert 2 million rows of data into SQL Server?

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Name some problems that could occur with connection pooling

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