CompTIA Security+ (SY0-501) — Question 949

A user of the wireless network is unable to gain access to the network. The symptoms are:
1.) Unable to connect to both internal and Internet resources
2.) The wireless icon shows connectivity but has no network access
The wireless network is WPA2 Enterprise and users must be a member of the wireless security group to authenticate.
Which of the following is the MOST likely cause of the connectivity issues?

Answer options

• A. The wireless signal is not strong enough
• B. A remote DDoS attack against the RADIUS server is taking place
• C. The user's laptop only supports WPA and WEP
• D. The DHCP scope is full
• E. The dynamic encryption key did not update while the user was offline

Correct answer: C

Explanation

The correct answer is C because if the user’s laptop only supports WPA and WEP, it will not be able to authenticate with a WPA2 Enterprise network. Option A is incorrect as signal strength issues would typically show as no connectivity at all. B is unlikely since a DDoS attack would affect all users, not just one. D is not the issue since DHCP scope problems would prevent any IP assignment, and E is not applicable if the device can't connect due to incompatibility.