Respuesta :
A file extension is also known as the file format. The correct option are 1 and 4.
What is a file format?
A file extension, often known as a file format, is the structure of a file in terms of how the data within the file is arranged on a computer. A file name extension frequently indicates a certain file format as part of a file's name (suffix).
A file format is chosen on the basis of the following key points,
- The need for future access
- The need for digital preservation
Hence, the correct option are 1 and 4.
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