CompTIA Security+ (SY0-701) — Question 520

Which of the following should be used to ensure a device is inaccessible to a network-connected resource?

Answer options

• A. Disablement of unused services
• B. Web application firewall
• C. Host isolation
• D. Network-based IDS

Correct answer: C

Explanation

Host isolation is the correct answer as it specifically refers to separating a device from the network, making it inaccessible. The other options, such as disabling services and using a web application firewall, do not completely isolate a device from network access.