Which of the following is a recommended approach for data backup?
a. Allow employees to take copies of vital data home at the end of the work day.
b. Store the data in a building adjacent to the company.
c. Store all the data in an external disk and place it in the server room.
d. Use online databases to update and backup the data.
d. Use online databases to update and backup the data.
The recommended and widely implemented approach for data backup is to use online databases to update the data;as online databases are updated,companies can have these changes mirrored on a backup database hundreds of miles away. This approach is expensive, but it provides rapid access to current data in the event of a disaster.
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The lpr and sort utilities accept input either from a file named on the command line or from standard input.
a. Name two other utilities that function in a similar manner. b. Name a utility that accepts its input only from standard input.
Outdenting moves a task to the left, and to a(n) lower level in the WBS.
Answer the following statement true (T) or false (F)
FIGURE EXX 3-1
To see the results of many different possible inputs at the same time, which option would you click on the What-If Analysis menu shown in Figure EXX 3-1 above?
A. Scenario Manager B. Goal Seek C. Data Table D. none of the above
Why is it necessary to run a program using test data for input?
a. To verify there are no syntax errors in the program. b. To verify that programming language elements are used correctly. c. To verify the application produces correct results. d. To see if the flowchart is correct.