ACE Foundational Concepts & Principles 3

Question 1

What is the significance of the MD5 hash value in digital forensics?

Accepted Answer

It provides a unique fingerprint to verify a file or image has not been altered

Answer

MD5 produces a fixed-length digest that acts as a fingerprint; any change to the data produces a different hash, verifying integrity.

Question 2

What is 'unallocated space' on a hard drive?

Accepted Answer

Clusters not currently assigned to any file by the file system

Answer

Unallocated space consists of clusters that are not assigned to active files and may contain remnants of deleted files.

Question 3

In the context of the ACE exam, what does 'email header analysis' primarily help an investigator determine?

Accepted Answer

The routing path and originating IP address of an email

Answer

Email headers contain Received fields that trace the servers the message passed through, helping identify the origin IP and routing path.

Question 4

Which standard governs the admissibility of scientific evidence in US federal courts based on peer review and general acceptance?

Accepted Answer

Daubert Standard

Answer

The Daubert Standard, established in Daubert v. Merrell Dow Pharmaceuticals (1993), requires federal courts to evaluate scientific testimony for reliability and relevance.

Question 5

What is the purpose of a 'forensic image' as opposed to a simple file copy?

Accepted Answer

A forensic image captures every bit of the source drive including unallocated and slack space

Answer

A forensic image (bit-for-bit copy) captures the entire drive including deleted data, slack space, and unallocated areas that a file copy would miss.

(ACE) AccessData Certified Examiner Practice Test

(ACE) AccessData Certified Examiner Practice Test

ACE Foundational Concepts & Principles 3