File Signatures and Forensic Analysis

What is the primary purpose of analyzing file signatures in forensic analysis?

• To identify the file's content for quick viewing.

• To verify the file's true type and integrity.

• To change the file's extension to a more common format.

• To recover deleted files from a computer system.

What was suspicious about the 'Wildlife.jpg' file initially?

• Its unusually small file size.

• Its creation date being in the past.

• Its inability to be opened by the default photo viewer despite being a JPEG.

• Its hidden attribute being set in the file properties.

What type of software is HXD, which is used to examine the raw hexadecimal values of files?

• An image editing software.

• A text document viewer.

• A hex editor.

• A video playback application.

What hexadecimal bytes typically mark the beginning of a standard JPEG image file?

• FF D8 FF E0

• 30 26 B2 75

• 4D 5A 90 00

• 89 50 4E 47

What hexadecimal bytes typically mark the end of a standard JPEG image file?

• FF D9

• 00 00

• 49 44 33

• 50 4B 03 04

After examining its file signature, what was the true file type of 'Wildlife.jpg'?

• PNG image

• PDF document

• WMV video

• MP3 audio

Why might someone intentionally change a file's extension to mislead others about its true type?

• To improve file compression and reduce storage space.

• To hide the file's true content or purpose.

• To make the file load faster in applications.

• To simplify file management and organization.

In what scenario would examining file signatures be particularly useful in forensic analysis?

• When creating new files on a computer system.

• When files are too small to be opened by standard applications.

• When there is suspicion of hidden or mislabeled files within a directory.

• When optimizing disk space by identifying duplicate files.