CompTIA Security+ (SY0-601) — Question 170

A network engineer is troubleshooting wireless network connectivity issues that were reported by users. The issues are occurring only in the section of the building that is closest to the parking lot. Users are intermittently experiencing slow speeds when accessing websites and are unable to connect to network drives. The issues appear to increase when laptop users return to their desks after using their devices in other areas of the building. There have also been reports of users being required to enter their credentials on web pages in order to gain access to them. Which of the following is the MOST likely cause of this issue?

Answer options

• A. An external access point is engaging in an evil-twin attack.
• B. The signal on the WAP needs to be increased in that section of the building.
• C. The certificates have expired on the devices and need to be reinstalled.
• D. The users in that section of the building are on a VLAN that is being blocked by the firewall

Correct answer: A

Explanation

The correct answer is A because an evil-twin attack involves an unauthorized access point mimicking a legitimate one, causing connectivity issues and requiring users to re-enter credentials. Option B is incorrect as simply increasing the signal would not address the issue of credential prompts. Option C does not explain the specific connectivity issues being faced, and option D is unlikely since it would affect more than just the users in that area.