Exam 11: Multiple Classes and Inheritance
Exam 1: Introduction to Visual Basic 2012 Programming112 Questions
Exam 2: Program and Graphical User Interface Design112 Questions
Exam 3: Program Design and Coding112 Questions
Exam 4: Variables and Arithmetic Operations112 Questions
Exam 5: Decision Structures112 Questions
Exam 6: Loop Structures112 Questions
Exam 7: Using Procedures and Exception Handling112 Questions
Exam 8: Using Arrays and File Handling112 Questions
Exam 9: Creating Web Applications112 Questions
Exam 10: Incorporating Databases with ADO.NET112 Questions
Exam 11: Multiple Classes and Inheritance112 Questions
Exam 12: Windows Store Apps112 Questions
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In a three-tier architecture,the ____ tier contains the logic and calculations.
(Multiple Choice)
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When a class is ____ into an object using the New keyword,a special procedure called a constructor is executed in the class.
(Multiple Choice)
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____________________ allows one class to inherit attributes and procedures from another class.
(Short Answer)
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To call a procedure in another object,a statement in the calling object must identify both the object and the procedure within the object.
(True/False)
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The ____________________ procedure is used to close a StreamWriter file.
(Short Answer)
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MATCHING
Identify the letter of the choice that best matches the phrase or definition.
-A class acts as a template for this
(Multiple Choice)
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In a three-tier architecture,the business classes should not be concerned with the functionality of the user interface.
(True/False)
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The keyword ____________________ in a base class means that a subclass can contain a procedure with the same procedure name.
(Short Answer)
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MATCHING
Identify the letter of the choice that best matches the phrase or definition.
-Can be used to write a stream of text to a file
(Multiple Choice)
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In a three-tier architecture,only the presentation tier will actually read and write data._________________________
(True/False)
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Which tier is involved in saving data stored on a USB drive?
(Multiple Choice)
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The ____ tier implements the "business rules" required for the application.
(Multiple Choice)
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Concatenation is a major contributor to reliable and robust programs._________________________
(True/False)
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What is a constructor? What is its function? What happens if a developer writes no code for a class constructor?
(Essay)
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The Visual Basic statement "Dim objStudent As Student"will create and instantiate an object.
(True/False)
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When using inheritance,the class that provides attributes to be inherited is called the ____ class.
(Multiple Choice)
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The TabIndex property determines which object on a form receives the focus when the user presses the ____ key.
(Multiple Choice)
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To ensure that variables declared in a base class may be accessed by its subclasses but not by other classes,the variables should be declared with ____ access.
(Multiple Choice)
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