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Which of the following GUI-based data source classes will you use to accomplish the task?

You work as a Windows Application Developer for company Inc. The company uses Visual Studio
.NET 2008 as its application development platform. You create a Windows Forms application using
.NET Framework 3.5. The application contains a data-bound control. You want to display both
hierarchical and tabular data by using the data-bound control. Which of the following GUI-based
data source classes will you use to accomplish the task?

Which of the following normal forms will you use to represent these relationships in the tables?

You work as a Database Administrator for Dowtech Inc. A table named StudentInformation exists in
a database. The table has columns named student_names, student_marks, and student_courses.
Some students who have opted for various courses have got different marks in them. This implies
that the table has two many-to-many relationships. You have to ensure that these two relationships
are not represented in a single table and that the student_name column exists in both tables. Which
of the following normal forms will you use to represent these relationships in the tables?