Disc Operating System (DOS)
While working with MS-DOS, which command is used to rename a file named file1.doc to file2.doc from a different directory called dir1?

Ren \dir1\file1.doc file2.doc
Ren2.doc \dir\file1.doc
Ren .doc\dir\.doc
Ren file1.doc file2.doc

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Disc Operating System (DOS)
Which of the following applies to Internal DOS commands?

Internal commands can be run whenever the DOS prompt is displayed
Internal commands are stored on disk separately from COMMAND.COM
Internal commands can only be executed from a batch file
Internal commands are reserved for DOS-level programming

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