What type of evidence is this file?

An investigator is examining a copy of an ISO file that is stored in CDFS format.

What type of evidence is this file?
A . data from a CD copied using Mac-based system
B . data from a CD copied using Linux system
C . data from a DVD copied using Windows system
D . data from a CD copied using Windows

View Answer

Answer: B

Explanation:

CDfs is a virtual file system for Unix-like operating systems; it provides access to data and audio tracks on Compact Discs. When the CDfs driver mounts a Compact Disc, it represents each track as a file. This is consistent with the Unix convention "everything is a file". Source: https://en.wikipedia.org/wiki/CDfs