According to the CHFI v11 Computer Forensics Fundamentals and File Analysis modules, a hex editor is a critical forensic tool used to view and analyze raw disk data at the byte level. Hex editors typically present data in three main columns or areas: the address (offset) area , the hexadecimal area , and the character (ASCII) area .
The character area displays the ASCII interpretation of each byte shown in the hexadecimal area. This allows investigators to visually identify readable text strings , file headers, metadata, embedded scripts, usernames, URLs, file signatures, and fragments of deleted files that may still reside in unallocated space or slack space. Printable characters are shown as readable text, while non-printable bytes are usually represented by dots (.).
The address area shows the offset or location of the data within the file or disk. The hexadecimal area displays the raw byte values in hexadecimal format, which is essential for precise byte-level analysis. A footer area is not a standard component of hex editor layouts as defined in CHFI v11.
CHFI v11 emphasizes correlating the hexadecimal values with their ASCII representations to accurately interpret raw data and identify meaningful forensic artifacts. Therefore, the area that displays the ASCII representation of each byte is the Character area , making Option D the correct and CHFI v11-verified answer.