CompTIA Network+ (N10-008) — Question 299

An auditor assessing network best practices was able to connect a rogue switch into a network jack and get network connectivity. Which of the following controls would BEST address this risk?

Answer options

• A. Activate port security on the switchports providing end user access.
• B. Deactivate Spanning Tree Protocol on network interfaces that are facing public areas.
• C. Disable Neighbor Resolution Protocol in the Layer 2 devices.
• D. Ensure port tagging is in place for network interfaces in guest areas.

Correct answer: A

Explanation

Activating port security on the switchports will help prevent unauthorized devices, like a rogue switch, from connecting to the network by limiting access to known MAC addresses. The other options, while relevant to network security, do not directly address the immediate risk of unauthorized devices gaining access to the network through physical connections.