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

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

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

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