In digital forensics, which artifact is used to verify a forensic image has not been altered?

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Prepare for the Computer Hacking Forensic Investigator v11 exam. Study with flashcards and multiple choice questions. Each question includes hints and explanations. Get exam-ready efficiently!

Multiple Choice

In digital forensics, which artifact is used to verify a forensic image has not been altered?

Explanation:
Verifying the integrity of a forensic image relies on cryptographic hash values. When you acquire an image, you compute a hash (such as SHA-256) and record it in a hash set or manifest. This hash acts as a fingerprint of the exact bitstream. Later, you recompute the hash and compare it to the original; a match means the image has not been altered, while a mismatch indicates tampering or corruption. This approach is essential for a verifiable chain of custody. Bookmarks are just navigational markers, keywords are search terms, and file signatures identify file types—not whether the image has remained unchanged.

Verifying the integrity of a forensic image relies on cryptographic hash values. When you acquire an image, you compute a hash (such as SHA-256) and record it in a hash set or manifest. This hash acts as a fingerprint of the exact bitstream. Later, you recompute the hash and compare it to the original; a match means the image has not been altered, while a mismatch indicates tampering or corruption. This approach is essential for a verifiable chain of custody. Bookmarks are just navigational markers, keywords are search terms, and file signatures identify file types—not whether the image has remained unchanged.

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