Security+ Answer Access Problem

Here’s the Answer to the Question posted on Facebook

Q. Your organization is hosting a wireless network with an 802.1x server using PEAP. On Thursday, users report they can no longer access the wireless network. Administrators verified the network configuration matches the baseline, there aren’t any hardware outages, and the wired network is operational. Which of the following is the MOST likely cause for this problem?

A. The RADIUS server certificate expired.

B. DNS is providing incorrect host names.

C. DHCP is issuing duplicate IP addresses.

D. MAC filtering is enabled.

Answer available until August 2, 2016.

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