Sally wants to secure her organization's VoIP systems. Which of the following attacks is one that she shouldn't have to worry about?
A. Eavesdropping
B. Denial of service
C. Blackboxing
D. Caller ID spoofing
Answer: C. Blackboxing
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C++ uses __________ to define new data types as encapsulations of data and operations.
Fill in the blank(s) with the appropriate word(s).
Write an application that mimics the behavior of a screen saver. It should draw random shapes onto a black background and the shapes should build up on top of each other until the screen saver resets (every 30 seconds). You have been provided with a Screen Saver application that does not yet display outlined shapes. It uses the MyRectangle and MyOval classes that you created in this tutorial. Add the code that will display random outlined shapes in your output. Your output should look like Fig. 27.34.
a) Copying the template to your working directory. Copy the C:Examples Tutorial27ExercisesAdvancedScreenSaver directory to your C:SimplyJava directory.
b) Opening the template file. Open the MyRectangle.java file in your text editor.
c) Adding an instance variable to the MyRectangle class. At line 7, add a comment indicating that the instance variable is a boolean and will indicate whether or not the rectangle is filled. At line 8, add a private instance variable named filled of type boolean.
d) Modifying the MyRectangle constructor. You will now modify the MyRectangle constructor so that it can accept an additional boolean argument. At line 12, add a boolean argument named fill to the end of the parameter list. At line 16, set the instance variable filled equal to the value of parameter fill and on the same line, add a comment indicating that filled will specify if the shape will be filled.
e) Modifying the draw method. At line 31, add a comment indicating that an if statem
The ____ is a toolbar with buttons for examining or editing the attributes of any element that is currently selected on the active page displayed in the Document window.
A. Start page B. status bar C. attribute bar D. Property inspector
A ____________________ usually represents professional talents and actors in the United States.
Fill in the blank(s) with the appropriate word(s).