Disk Operating System (DOS) Question:
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Which command is used to delete all the files extension .txt on the current drive and directory?

a. Del .txt
b. Erase .txt
c. Del *.txt
d. Del *.*/p

Answer:

c. Del *.txt

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Which command in DOS can be used to recover accidentally deleted files?

a. UNDELETE
b. DELETE/CANCEL
c. RESTORE
d. RECOVER		Which file in MSDOS contain internal command that are loaded during booting process?

a. Io.sys
b. Msdos.sys
c. Command.com
d. Config.sys