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Which of the following filename extension suggests that the file is a backup copy of another file?
- Atxt
- Bcom
- Cbas
- Dbak
- ENone of the above
Correct answer: D
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.bak
In computing, ".bak" is a filename extension commonly used to signify a backup copy of a file.
When a program is about to overwrite an existing file (for example, when the user saves the document they are working on), the program may first make a copy of the existing file, with .bak appended to the filename. This common .bak naming scheme makes it possible to retrieve the original contents of the file. In a similar manner, a user may also manually make a copy of the file before the change and append .bak to the filename.
In computing, ".bak" is a filename extension commonly used to signify a backup copy of a file.
When a program is about to overwrite an existing file (for example, when the user saves the document they are working on), the program may first make a copy of the existing file, with .bak appended to the filename. This common .bak naming scheme makes it possible to retrieve the original contents of the file. In a similar manner, a user may also manually make a copy of the file before the change and append .bak to the filename.