?In a data flow diagram (DFD), a black hole is a process that has _____.

A. ?no input
B. ?at least one output and one input, but the output obviously is insufficient to generate the input shown
C. ?no output
D. ?at least one input and one output, but the input obviously is insufficient to generate the output shown


Answer: C

Computer Science & Information Technology

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When you give ls an argument that is the name of a directory, ls displays the contents of that directory. Give an ls command with an argument of the absolute pathname of two (see step 3) to display the contents of the two directory. When you use an absolute pathname, it does not matter which directory is your working directory.

What will be an ideal response?

Computer Science & Information Technology

Analyze the following code:

``` public class Test { public static void main(String[] args) { int[] x = {1, 2, 3, 4, 5}; xMethod(x, 5); } public static void xMethod(int[] x, int length) { System.out.print(" " + x[length - 1]); xMethod(x, length - 1); } }``` a. The program displays 1 2 3 4 6. b. The program displays 1 2 3 4 5 and then raises an ArrayIndexOutOfBoundsException. c. The program displays 5 4 3 2 1. d. The program displays 5 4 3 2 1 and then raises an ArrayIndexOutOfBoundsException.

Computer Science & Information Technology

Which of the following Terminal commands is used to safely eject a USB drive in Linux?

a. sudo unmount /dev/sbd1 b. unmount /dev/USB1 c. sudo eject /dev/sbd1 d. None of the above

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With a series of check boxes, only one box may be selected at a time.

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

Computer Science & Information Technology