Ado.net Multiple choice questions and answer
Jul 12, 2020
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ADO.NET multiple choice question and answers,
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In this article, we will go through the Ado.net multiple choice question and answers. It will help us brush up our knowledge about Ado.net .
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ADO.NET MCQs (Multiple choice questions and answer)
1) To perform asynchronous data access, what must be added to the connection string?
- BeginExecute=true
- MultiThreaded=true
- MultipleActiveResultSets=true
- Asynchronous=true
Answer : 4
2) Can you use a DataView to filter rows in a DataTable
- Yes, by setting the Filter property of the DataView
- Yes, by setting the RowFilter property of the DataView
- Yes, by using the SetFilter(. method of the DataView
- No, a DataView cannot be used to filter rows in a DataTable
Answer: 2
3) Which is a property of the DataGrid control?
- DataMember
- DataSource
- DataQuery
- All of the above.
Answer: 4
4) In a connection string _____________ represents name of the database
- Data Source
- Initial Catalog
- Catalog Initial
- Database
Answer: 2
5) What are the Command Object Methods?
- ExecuteNonQuery
- ExecuteReader
- ExecuteScalar
- All of the above.
Answer: 4
6) When you create a relationship between tables in ADO.NET DataSet
- A UniqueConstraint is added to the parent table
- A ForeignKeyConstraint is added to the child table by default
- Both a and b
- None
Answer : 3
7) The first record in a dataset has a position property of:
- zero
- one
- any value defined by the programmer
- All of the above
Answer: 1
8) Which ado.net class provide a disconnected environment?
- DataReader
- DataSet
- Command
- None of the above.
Answer: 2
9) What information is specified in the Connection tab of the DataLink window?
- Database login
- Database name
- Database type
- All of the above.
Answer: 4
10) Which of the following is true for ADO.NET DataSet?
- DataSet provides a disconnected view of a data source.
- Dataset enables to store data from multiple tables and multiple sources
- We can create a relationship between the tables in a DataSet.
- All of the above is true
Answer: 4
11) Which file you should write for the connection string so that you can access it in all the web pages for the same application?
- In App_Data folder
- In Web.config file
- In MasterPage file
- None of the above
Answer: 2
12) Which of the following is not a DataReader method?
- NextResult
- GetName
- GetValue
- GetDataType
Answer: 4
13) Which database is the ADO.NET SqlConnection object designed for?
- Access
- Microsoft SQL Server
- MySQL
- Oracle
Answer: 2
14) The data is stored in a Microsoft SQL Server database on a server named Admin and the Database name is Diploma. You connect to Diploma by using Windows authentication mode. You use a SqlConnection object to connect to the database. Then which is the correct connection string from below?
- Data Source=Admin\SQLEXPRESS;Initial Catalog=Diploma;Integrated Security=True
- Data Source=Admin/SQLEXPRESS;Initial Catalog=Diploma;Integrated Security=True
- Data Source=Admin\SQLEXPRESS;Initial Catalog=Diploma;Integrated Security=False
- All of the Above
Answer: 1
15) Choose the correct option about the Integrated Security property of the connection object.
- If Integrated Security=false then User ID and Password must be specified in the connection string.
- If Integrated Security=true, then current Windows account credentials are used for authentication.
- Both A and B option are correct.
- None of the above.
Answer : 3
16) The first step of configuring a DataAdapter is to select:
- An adapter object.
- A connection object.
- A database object.
- A dataset object.
Answer: 2
17) To check the status of the connection, ____ property is useful
- ConnectionStatus
- Status
- State
- ConnectionState
Answer: 3
18) Which is not an ADO.NET DataAdapter Object?
- OleDbDataAdapter
- SQLDataAdapter
- QueryDataAdapter
- All of the above.
Answer: 3
19) Which type of object has the Generate Dataset method?
- Adapter object
- Connection object
- Database object
- Dataset object
Answer: 1
20) Which of the following illustrates the benefit of ADO.NET?
- Interoperability
- It uses DataSet to represent data in memory that can store data from multiple tables and multiple sources.
- Disconnected data access
- All of above
Answer: 4
21) Which object does the data-aware control bind to?
- Dataset
- DataAdapter
- Connection
- All of the above.
Answer: 1
22) Which object contains the Position property of the current record in a dataset?
- BindingContext
- BindingData
- DataBinding
- DataBound
Answer: 1
23) Which below is specified by the DataSource Property?
- Connection object
- DataAdapter object
- Database field
- Dataset object
Answer : 3
24) Which of the following method of the command object is best suited when you have aggregate functions in a SELECT statement?
- ExecuteScalar
- ExecuteReader
- ExecuteNonQuery
- None
Answer: 1
25) What data type is returned when calling the ExecuteScalar method of a command object?
- System.Int32
- Object
- No of affected records.
- None of the above.
Answer: 2
26)To perform Insert, Update and Delete Command which method is used?
- ExecuteScalar
- ExecuteReader
- ExecuteNonQuery
- None
Answer: 3
27) Which DataAdapter Query Type can be used with the Access database?
- Use SQL statements.
- Create a new stored procedure.
- Use existing stored procedure.
- All of the above.
Answer: 1
28) What is the proper code to put data into the dataset called EmployDataset using the EmployDataAdapter object?
- EmployDataset.Fill(EmployDataAdapter)
- EmployDataAdapter.Fill(EmployDataset)
- EmployDataset.Load(EmployDataAdapter)
- EmployDataAdapter.Load(EmployDataset)
Answer: 2
29) Which of the following is the method provided by the DataSet object to generate XML?
- ReadXML
- WriteXML
- 3.GetXML
- All of the above
Answer: 4
30) The default timeout for SqlCommand.Command timeout property
- 10 Seconds
- 20 Seconds
- 30 Seconds
- 40 Seconds
Answer : 3
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