Following a cybercrime incident, a forensic investigator is conducting a detailed examination of a suspect’s...

This question maps directly to CHFI v11 objectives under Data Acquisition and Duplication and Data Acquisition Formats . CHFI v11 clearly explains that the RAW (dd) image format is the most widely used and universally supported forensic image format. RAW images are exact bit-by-bit copies of storage media and do not rely on proprietary structures, compression, or vendor-specific software. This makes them ideal when investigators require maximum compatibility across multiple forensic tools and platforms.

The RAW format is simple, uncompressed, and transparent, allowing it to be analyzed by nearly all forensic suites such as Autopsy, FTK, EnCase, and The Sleuth Kit. CHFI v11 emphasizes that RAW images are preferred when long-term accessibility, court admissibility, and tool independence are critical requirements.

AFF and AFF4 formats provide advanced features such as metadata storage and compression, but they require specific tool support and are not as universally accessible. Proprietary formats are discouraged because they limit interoperability and may introduce legal or technical constraints. Therefore, adopting the RAW format best satisfies the requirement for simplicity, broad compatibility, and forensic soundness as defined in CHFI v11 standards.