Which of the following options is a Microsoft .NET Framework component that adds native data
querying capabilities to .NET languages?
A.
Common language runtime
B.
XmlDataSource
C.
SqlDataSource
D.
Language Integrated Query
Explanation:
Language Integrated Query (LINQ) is a Microsoft .NET Framework component that adds native data
querying capabilities to .NET languages.
Answer B is incorrect. XmlDataSource represents an XML data source to the data-bound controls
such as GridView and TreeView controls. Data-bound controls can use XmlDataSource to display
both hierarchical data and tabular data. The XmlDataSource control extends the
HierarchicalDataSourceControl class and works with hierarchical data. It also implements the
IDataSource interface; hence, it works with tabular data, or list style data.
Answer C is incorrect. The SqlDataSource represents a database connection that uses an ADO.NET
provider such as SqlClient, Odbc, etc. The SqlDataSource control enables a Web server control to
access data located in a relational database. The SqlDataSource control can be used with data bound
controls such as GridView, FormView, and DetailsView to display and modify data on a Web page. It
uses ADO.NET classes to interact with any database supported by ADO.NET, such as Microsoft SQL
Server and Oracle.
Answer A is incorrect. Common language runtime (CLR) is a core component of Microsoft’s .NET
initiative. It is Microsoft’s implementation of the Common Language Infrastructure standard, which
defines an execution environment for program code. In the CLR, code is expressed in a form of
bytecode called the Common Intermediate Language.