CompTIA Security+ (SY0-601) — Question 217

A security administrator is seeking a solution to prevent unauthorized access to the internal network. Which of the following security solutions should the administrator choose?

Answer options

• A. MAC filtering
• B. Anti-malware
• C. Translation gateway
• D. VPN

Correct answer: A

Explanation

MAC filtering is effective for controlling access to the network by allowing only devices with specific MAC addresses, thereby preventing unauthorized connections. Anti-malware protects against malicious software but does not specifically prevent unauthorized access. A translation gateway primarily facilitates communication between different protocols and does not focus on access control. A VPN provides secure access over public networks but does not inherently prevent unauthorized local access.