Are You An Ado.Net Expert?
If you consider yourself an expert in ADO. Net then you should try our short quiz to determine the level of your knowledge and understanding about this data access technology from Microsoft.
Questions and Answers
- 1.
What Does ADO.Net Stand For?
- A.
Active Data Object Network
- B.
ActiveX Data Object Network
- C.
All Data Object Node
- D.
Automatic Data Object Network
Correct Answer
B. ActiveX Data Object NetworkExplanation
ADO.Net stands for ActiveX Data Object Network. ActiveX is a set of technologies developed by Microsoft that allows software components to be used in various programming languages. ADO.Net is a data access technology used by developers to interact with databases. It provides a set of classes and methods that enable the retrieval, manipulation, and updating of data in a database. The correct answer, ActiveX Data Object Network, accurately represents the acronym ADO.Net and its association with the ActiveX technology.Rate this question:
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- 2.
In ADO.Net, What Represents a Memory-Resident Set of Data that Includes Related Tables and its Relationship?
- A.
DataObjects
- B.
DataSet
- C.
DataTables
- D.
TableSet
Correct Answer
B. DataSetExplanation
A DataSet in ADO.Net represents a memory-resident set of data that includes related tables and their relationships. It is a disconnected, in-memory representation of data that can hold multiple tables, relationships, and constraints. It allows for efficient data manipulation and provides a way to store and work with data from multiple sources or tables in a single object.Rate this question:
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- 3.
Which of the Following is Not an ADO.Net Data Provider?
- A.
LINQ
- B.
Odbc
- C.
OleDB
- D.
SqlClient
Correct Answer
A. LINQExplanation
LINQ is not an ADO.Net Data Provider. LINQ (Language Integrated Query) is a query language that allows developers to query various data sources, including databases, collections, and XML. It is not a specific data provider like Odbc, OleDb, or SqlClient, which are used to connect and interact with specific types of databases. Therefore, LINQ is the correct answer as it is not a data provider.Rate this question:
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- 4.
What Represents a Single In-Memory Relational Data Table?
- A.
DataSet
- B.
DataTable
- C.
ODtable
- D.
ObjectTable
Correct Answer
B. DataTableExplanation
A DataTable represents a single in-memory relational data table. It is a part of the ADO.NET framework and is used to store and manipulate data in a tabular format. It consists of rows and columns, where each column represents a specific data type and each row represents a record. DataTable provides various methods and properties to perform operations such as adding, deleting, updating, and querying data within the table.Rate this question:
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- 5.
Which of the Following Method Creates a Row that Is Added to the DataTable?
- A.
AddRow
- B.
CreateRow
- C.
DataRow
- D.
NewRow
Correct Answer
D. NewRowExplanation
The correct answer is "NewRow." This method is used to create a new DataRow object that can be added to a DataTable.Rate this question:
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- 6.
What Does the DataType Field GUID Stand For?
- A.
General Unassigned Integer Data
- B.
General Unique Identifier
- C.
Globally Unassigned Integer Data
- D.
Globally Unique Identifier
Correct Answer
D. Globally Unique IdentifierExplanation
The correct answer is "Globally Unique Identifier". A GUID is a unique value that is assigned to a data field in order to identify it globally. It is a 128-bit integer value that is generated by the computer system and is guaranteed to be unique across all devices and databases. GUIDs are commonly used in computer systems and databases to ensure the uniqueness of data records and to facilitate data synchronization and replication.Rate this question:
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- 7.
Which of the Following is Not a DataRowState Field?
- A.
Added
- B.
Default
- C.
Detached
- D.
Unchanged
Correct Answer
B. DefaultExplanation
The "Default" option is not a DataRowState field because DataRowState is an enumeration that represents the state of a DataRow object in a DataTable. The DataRowState enumeration includes values such as Added, Detached, and Unchanged, which indicate different states of a DataRow. However, there is no "Default" state defined in the DataRowState enumeration.Rate this question:
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- 8.
Which of the Following Class Presents a Durable Object Reference that is an Entity Type Instance?
- A.
EntityException
- B.
EntityKey
- C.
EntityState
- D.
EntitySqlException
Correct Answer
B. EntityKeyExplanation
EntityKey is the correct answer because it is a class that represents a durable object reference that is an entity type instance. In Entity Framework, EntityKey is used to uniquely identify an entity in the entity model. It contains the entity's key values and the name of the entity set it belongs to.Rate this question:
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- 9.
Which of the Following Interface Provides a DataReader Access to the Values of the Column Within Each Row?
- A.
IDataAdapter
- B.
IDataParameter
- C.
IDataReader
- D.
IDataRecord
Correct Answer
D. IDataRecordExplanation
IDataRecord is the correct answer because it is the interface that provides a DataReader access to the values of the column within each row. IDataRecord contains methods and properties that allow for the retrieval of column values based on their index or name, as well as the ability to check for null values. IDataRecord is commonly used in ADO.NET to read and manipulate data from a database.Rate this question:
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- 10.
What EntitySqlException Property Can Identify the Method that Triggers the Current Exception?
- A.
ErrorContext
- B.
HResult
- C.
Source
- D.
TargetSite
Correct Answer
D. TargetSiteExplanation
The TargetSite property in the EntitySqlException class can identify the method that triggers the current exception. It provides information about the method where the exception occurred, allowing developers to easily identify the specific code that caused the exception. This can be helpful in debugging and troubleshooting the issue.Rate this question:
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