Use ___________ testing on a whole program with the hardware and software it is expected to be used with.

Which of the following can be both an input and an output device?

a. mouse b. keyboard c. monitor d. laser printer

To open an output file and add to the end of the data already in the file you would write

a. outFile.open("project.txt"); b. outFile.append("project.txt"); c. outFile.open("project.txt", append); d. outFile.open("project.txt", ios::app);