The____ operator means not equal to.

A. --
B. = =
C. <=
D. !=


Answer: D

Computer Science & Information Technology

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Which of the following is equivalent to this code segment?

``` int total = 0; for (int i = 0; i <= 20; i += 2) total += i; ``` a. int total = 0; for (int i = 20; i < 0; i += 1) total += i; b. int total = 0; for (int i = 0; i <= 20; total += i, i += 2); c. int total = 0; for (int i = 0, i <= 20, total += i; i += 2); d. int total = 0; for (int i = 2; i < 20; total += i, i += 2);

Computer Science & Information Technology

What is the scope of variable z?

Given this code: ``` int z; int main( ) { int y = 3, x = 2; z = x + y; return 0; } ``` A. local B. static C. global D. none of the above

Computer Science & Information Technology

A software ________ blocks access to an individual computer

A) firewall B) keylogger C) rootkit D) Trojan horse

Computer Science & Information Technology

Which of the following shows the correct order of steps for adding a data series to a chart?

A. Select the chart, Click the Add button, Click the Select Data button, Select the range B. Select the chart, Click the Select Data button, Click the Add button, Select the range C. Select the range, Click the Select Data button, Click the Add button, Select the chart D. Select the range, Select the chart, Click the Select Data button, Click the Add button

Computer Science & Information Technology