100-160 Question 95
Single answerA company’s IT administrator wants to enhance the security of their wireless network. They have implemented WPA3 encryption, disabled SSID broadcasting, and enabled MAC address filtering. Despite these measures, an employee reports a potential unauthorized connection to the network. Which action should the administrator take to address the issue?
- A
Review and update the list of allowed MAC addresses to ensure no unauthorized devices are listed.
- B
Switch the encryption standard from WPA3 to WPA2 for better compatibility.
- C
Enable SSID broadcasting to make the network more visible for legitimate users.
- D
Disable MAC address filtering, as it is ineffective against skilled attackers.
Show answer and explanation
Correct answer: A
Explanation
The issue of an unauthorized connection suggests a potential flaw in the current MAC address filtering configuration. Reviewing and updating the allowed MAC address list is a practical step to ensure only authorized devices are permitted. This action aligns with the company’s security measures, such as using WPA3 encryption and disabling SSID broadcasting, to maintain a robust wireless network security posture.
- A. Correct.
MAC address filtering works by allowing only specific devices to connect to the network. The administrator should review the list of allowed MAC addresses to ensure no unauthorized devices have been added.
- B. Incorrect.
Switching from WPA3 to WPA2 would weaken the security of the network, as WPA3 provides stronger encryption and authentication mechanisms.
- C. Incorrect.
Enabling SSID broadcasting would make the network more visible to everyone, including potential attackers, and does not directly address unauthorized connections.
- D. Incorrect.
Disabling MAC address filtering would remove one layer of security, even though it is not foolproof. It is better to review and maintain the filter list rather than disabling it entirely.