71. The COPY command of MS-DOS, is used to:
72. Which of the following filename extension suggests that the file is a backup copy of another file?
73. While working with MS-DOS, which command is used to compare the disk in drive A with the disk in drive B, specifying to compare only first side of each disk, and only the first 8 sectors of each track?
74. While working with MS-DOS, which command will you use to display the version?
75. What type of commands are individual programs kept, as separate files on the hard disk (DOS diskette)?
76. In DOS, what key would you press to step through the Config.sys and Autoexec.bat?
77. Which command is used to delete the directory and all its contents in one step?
78. Which internal DOS command clears the screen and places the DOS prompt in the upper left corner of the screen?
79. After searching the current directory where does command.com search next?
80. To view any currently running Terminate Stay Resident (TSR's) programs you could type:
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