GIAC Certified Forensic Analyst (GCFA) — Question 9

Which of the following statements are true about Compact Disc (CD) and Digital Versatile Disk (DVD)?
Each correct answer represents a complete solution. Choose all that apply.

Answer options

• A. CDs and DVDs are affected by EMP from nuclear detonations.
• B. Data is encoded in the form of tiny pits on the surface of the CD and DVD.
• C. CDs and DVDs are not affected by X-rays, and other sources of electromagnetic radiation.
• D. It takes a small amount of energy to affect the data that written on CD and DVD.

Correct answer: B, D

Explanation

Option B is correct because data on CDs and DVDs is indeed encoded as tiny pits. Option D is also correct since a small amount of energy can impact the data on these disks. Options A and C are incorrect because CDs and DVDs can be affected by EMP and are not completely immune to all forms of electromagnetic radiation.