CCE Digital Evidence Collection & Preservation

Question 1

What is the primary purpose of creating a forensic image of a digital device?

Accepted Answer

To preserve evidence integrity

Answer

The primary purpose of creating a forensic image of a digital device is to preserve the integrity of the original evidence. This bit-for-bit copy ensures that any analysis is performed on an exact duplicate, leaving the original data unaltered and maintaining its admissibility and authenticity in legal proceedings.

Question 2

What is the correct order of volatility when collecting digital evidence?

Accepted Answer

RAM, Cache, Network logs, Disk

Answer

The order of volatility refers to the lifespan of digital evidence, from most transient to most persistent. RAM and CPU cache hold data for the shortest periods, followed by active network connections and logs, and then persistent storage like hard disks, which retain data even after power loss, dictating the collection priority.

Question 3

Which tool is commonly used to create a verified forensic image?

Accepted Answer

FTK Imager

Answer

FTK Imager is a widely used and trusted software tool in digital forensics for creating verified forensic images of various storage devices. It can generate bit-for-bit copies in several formats and includes hashing capabilities to ensure the integrity and authenticity of the acquired evidence.

Question 4

What does the hash value of a forensic image ensure?

Accepted Answer

The image is identical to the original

Answer

The hash value (e.g., MD5, SHA1) of a forensic image is a unique digital fingerprint generated from its data. By comparing the hash of the original evidence with the hash of the acquired image, forensic examiners can mathematically confirm that the image is an exact, bit-for-bit duplicate and has not been altered.

Question 5

Why is write-blocking important during digital evidence collection?

Accepted Answer

To prevent modification of evidence

Answer

Write-blocking is a critical step in digital evidence collection, employing hardware or software tools to prevent any data from being written to the source drive. This ensures that the original digital evidence remains completely untampered and its integrity is preserved, which is essential for its admissibility in court.

(CCE) Certified Computer Examiner Practice Test

(CCE) Certified Computer Examiner Practice Test

CCE Digital Evidence Collection & Preservation