Which of the Following Statements are Correct?

1. A file extension determines the actual contents of a file.
2. Two files with different extensions may contain identical data.
3. Changing a file extension does not necessarily change file content.
4. The operating system often uses extensions to identify file types.

Question

Which of the Following Statements are Correct?

1. A file extension determines the actual contents of a file.

2. Two files with different extensions may contain identical data.

3. Changing a file extension does not necessarily change file content.

4. The operating system often uses extensions to identify file types.

Quintessence Classes · Accepted Answer

The correct answer is 2, 3 and 4 only. Statement BreakdownA file extension determines the actual contents of a file. — IncorrectThe content of a file is determined by the actual binary or text data saved inside it, not by its name or extension.Two files with different extensions may contain identical data. — CorrectFor example, a plain text file containing comma-separated values can be named data.txt or data.csv; both contain the exact same internal data despite having different extensions.Changing a file extension does not necessarily change file content. — CorrectRenaming photo.jpg to photo.txt only changes the filename metadata; it does not alter or re-encode the underlying image data inside the file.The operating system often uses extensions to identify file types. — CorrectOperating systems like Windows rely on file extensions to decide which application should open a file by default (e.g., associating .pdf with a PDF reader).

Answer

1 and 2 only

Answer

1, 3 and 4 only

Answer

All four

Answer & Explanation

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