Are you planning to take the Security+ exam? See if you can answer this sample test question.
Q. Your organization blocks access to social media web sites. The primary purpose is to prevent data leakage, such as the accidental disclosure of proprietary information. What is an additional security benefit of this policy?
A. Improves employee productivity
B. Enables cognitive password attacks
C. Prevents P2P file sharing
D. Protects against banner ad malware
See if you're correct (and the full explanation) here.