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National Open University Exam Past Question – CIT 351 October, 2013 Examination

NATIONAL OPEN UNIVERSITY OF NIGERIA CIT 351 C# Programming 

SCHOOL OF SCIENCE & TECHNOLOGY

 

Course Code:          CIT 351                                                Time:  3hrs

Course Title: C# Programming                                          Course Credit Unit:2

Instruction: Answer any four (4) questions.

 

QUESTIONS

 

  1. Go through the FibObj.cs source code below carefully, before answering the questions that follow:

 

 

1a. What does the source code describe and how is it used?                        (5 marks)

 

1b. Outline the steps involved in building a code library using the source code above. (20 marks)

 

 

 

2a. Describe how memory leaks are handled in C# programming?

(7 marks)

2b. State the guiding principle for accomplishing the following:

  1. Grouping statements into one unit                                       (6 marks)
  2. Designating an end statement                                                          (6 marks)

iii.      Enhancing a source code legibility                                        (6 marks)

 

 

 

3a. What is the main significance of VisualStudio.NET with respect to having an

Integrated Development Environment?                                                  (5 marks)

 

3b. List 3 regular programming tasks carried out in VisualStudio.NET.      (15 marks)

 

3c. State the key role of the Solution Explorer in C# programming.                      (5 marks)

 

 

 

4a. Assuming an existing application is saved as Technology.cs, outline the steps required to generate and run this application.                                      (16 marks)

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4b. Specify the categories of Static Properties commonly employed in C#

programming.

 

 

(9 marks)

 

 

  1. 5. Study the source code in the window below carefully and answer the questions that follow:

 

 

5a. Identify and state the sort of application for which this window is displayed.

 

(4 marks)

 

5b. Give a simple description of this application.                                                (6 marks)

 

 

5c. What is the main purpose of defining the ‘MyForm’ class?                           (6 marks)

 

 

5d. Write down the specific methods which the MyForm class defines.             (9 marks)

 

 

 

  1. 6. Give a brief description of any five (5) template types accessible in Visual C# projec (25

marks)

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