If you're planning on taking the Security+ exam, you should have a basic understanding of port security and how it can be implemented.
For example, can you answer this sample Security+ practice test question?
Q. Your organization frequently has guests visiting in various conference rooms throughout the building. These guests need access to the Internet via wall jacks, but should not be able to access internal network resources. Employees need access to both the internal network and the Internet. What would BEST meet this need?
A. PAT and NAT
B. DMZ and VPN
C. VLANs and 802.1x
D. Routers and Layer 3 switches
More, do you know why the correct answer is correct and the incorrect answers are incorrect? You can check your answer here.