CompTIA Security+ (SY0-501) — Question 136

A business has recently deployed laptops to all sales employees. The laptops will be used primarily from home offices and while traveling, and a high amount of wireless mobile use is expected.
To protect the laptops while connected to untrusted wireless networks, which of the following would be the BEST method for reducing the risk of having the laptops compromised?

Answer options

• A. MAC filtering
• B. Virtualization
• C. OS hardening
• D. Application white-listing

Correct answer: C

Explanation

OS hardening is the best approach as it involves securing the operating system by eliminating vulnerabilities, which is crucial for devices used in untrusted networks. MAC filtering is not very effective against determined attackers, virtualization does not specifically address the security of the OS, and application white-listing is useful but does not provide comprehensive OS security.