Answer the following statements true (T) or false (F)

1) The postfix expression 5 3 * 2 5 + - 4 * 2 / evaluates to 16
2) An exception should be thrown if an attempt is made to pop an item from an empty stack.
3) The peek operation can retrieve a value from anywhere in the stack.
4) An array-based implementation of a stack can be designed so that all stack operations are O(1).
5) The isEmpty() method determines if the store of extra memory for use by the stack is empty.


1) T
2) T
3) F
4) T
5) F

Computer Science & Information Technology

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To protect your wireless network, you should disable the broadcast of its ________

Fill in the blank(s) with correct word

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A ____ is a piece of code inserted into a program that will perform specific malicious functions when specified conditions are met.

A. logic bomb B. Trojan Horse C. macro virus D. worm

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Solve the following system using the linear combination method. If there are infinitely many solutions or no solution, so indicate.

What will be an ideal response?

Computer Science & Information Technology

Answer the following statements true (T) or false (F)

1) A solution is a group of related files, such as C# code, images and documentation. 2) You cannot browse the web from within the Visual Studio Community environment. 3) To make a new project you have to go into the Get Started section. 4) Visual Studio Community can be used to create apps only in C#. 5) Dragging and dropping predefined building blocks into place is part of visual programming in C#.

Computer Science & Information Technology