CompTIA Security+ (SY0-701) — Question 364

Which of the following should an organization use to protect its environment from external attacks conducted by an unauthorized hacker?

Answer options

• A. ACL
• B. IDS
• C. HIDS
• D. NIPS

Correct answer: D

Explanation

The correct answer is D, NIPS (Network Intrusion Prevention System), which actively monitors and prevents malicious activities on a network. While ACL (Access Control List) and IDS (Intrusion Detection System) provide some level of security, they do not prevent attacks in real-time, and HIDS (Host Intrusion Detection System) focuses on individual hosts rather than the network as a whole.