CompTIA A+ Core 1 (220-1101) — Question 404

A technician is mitigating threats to web clusters. Which of the following tools is the most appropriate for a technician to use to mitigate unwanted traffic against the web clusters’ public-facing interface?

Answer options

• A. Device encryption
• B. Intrusion detection system
• C. Antivirus/anti-malware
• D. Physical firewall

Correct answer: D

Explanation

The correct answer is D, as a physical firewall is specifically designed to filter and control incoming and outgoing network traffic, protecting the web clusters from unwanted traffic. Options A, B, and C do not directly mitigate traffic; device encryption secures data, an intrusion detection system monitors for threats but does not block them, and antivirus/anti-malware focuses on malware detection rather than traffic management.