CompTIA Network+ (N10-007) — Question 323

A vulnerability that would allow an unauthenticated, remote attacker to originate a DoS attack was found in a DHCP client implementation of a switch. Which of the following would BEST resolve the issue?

Answer options

• A. Verify the default passwords have been changed.
• B. Upgrade to the latest firmware
• C. Generate new SSH keys.
• D. Review and modify the firewall rules.

Correct answer: B

Explanation

Upgrading to the latest firmware (B) is the most effective solution as it often includes patches for known vulnerabilities, including those that could allow DoS attacks. The other options, while important for security, do not directly address the specific vulnerability found in the DHCP client implementation.