What is the difference between signed and unsigned numbers in binary? Explain 2's complement numbers using a simple example.

What is a wireless network that provides communication over a short distance that is intended for use with devices that are owned and operated by a single user?

You have two mail servers on your network named Mail1 and Mail2. You want clients to access Mail1 unless it's unresponsive, and then Mail2 should be accessed. What should you configure?

Which of the following statements about global variables is true? 1. A global variable is accessible only to the main function. 2. A global variable is declared in the highest-level block in which it is used. 3.

Which of the following cannot be performed from the windows task manager? A) view what application are running from in the background B) delete a program from the harddrive C) open a program D) check recent CPU usage

If your network consists of all connected devices connecting to one central device, such as a switch, what type of topology is being used? (A) mesh topology (B) star bus topology (C) bus topology (D) star topology

Describe a situation in which you have experienced harm as a consequence of a failure of computer security. Was the failure malicious or not? Did the attack target you specifically or was it general and you were the unfortunate victim?

Ar count = 10; while (count>0) { count = count - 2; } What is the value of count after the code segment above is executed?

Write a function get_initials (the name) that takes a string of a name and returns the initials of the name, in upper case, separated by periods, with an additional period at the end. Input-Output Samples John Q Public J. Q. P. Homer J Simpson H. J.

This function causes a program to terminate, regardless of which function or control mechanism is executing. A) terminate () B) return () C) continue () D) exit ()

To use a parameterized manipulator, the program must include the header file iostream. a. True b. False