Which type of format acquisition leaves the investigator unable to share an image between different vendors' forensic tools?

• A. Proprietary
• B. Open-Source
• C. Standard
• D. Shared

Answer: (A)

Interoperability across forensic tools depends on using image formats that multiple tools can read. A proprietary format is owned by a vendor and often lacks publicly available documentation or broad support. Because other vendors’ tools may not implement that format—or may require licenses—the image can’t be reliably opened or analyzed across different software. That’s why such a format prevents sharing an image between vendors.

Open-source formats, by contrast, have openly documented specifications and community support, making it possible for various tools to read and write them. Standard formats are widely adopted specifications designed for cross-platform compatibility. The idea of a “Shared” format isn’t a recognized way to guarantee portability if the format remains proprietary, so it doesn’t inherently solve the sharing problem.