CompTIA Network+ (N10-007) — Question 172

A zero-day vulnerability is discovered that affects a specific network device. This vulnerability only affects services on port 21. This network device is restricted to use only secure protocols and services. Which of the following explains why this device is secure?

Answer options

• A. Because secure protocols would reject malicious packets
• B. Because SCP is not a secure service
• C. Because FTP is not a secure service
• D. Because a secure firewall will protect the device

Correct answer: C

Explanation

The correct answer is C because FTP (File Transfer Protocol) is known to be an insecure service that transmits data in plaintext, making it vulnerable to interception. Options A and D are incorrect because the presence of secure protocols or a firewall does not negate the inherent insecurity of FTP. Option B is also not accurate as SCP (Secure Copy Protocol) is a secure service, unlike FTP.