CompTIA CASP+ Practice Test

What is the best way to adapt to a new threat involving physical access to corporate systems?

1. Change passwords regularly

2. Apply port security to switches

3. Implement a new firewall

4. Update the antivirus software

The correct answer is: Apply port security to switches

Applying port security to switches is the most effective way to address threats involving physical access to corporate systems. Port security is a network security feature that allows an administrator to configure a switch port to permit only a specified number of MAC addresses to connect through it. This effectively prevents unauthorized devices from connecting to the network via physical ports. In environments where there is a risk of physical access, such as in an office or data center, controlling which devices can connect to the network is critical. If an unauthorized individual gains physical access to a switch, they could potentially connect their own device and compromise the security of the network. By enforcing port security, you can ensure that only recognized devices can communicate on that specific port, mitigating the risk of intrusion. Other approaches listed, such as changing passwords regularly, implementing a new firewall, or updating antivirus software, while important for overall cybersecurity, do not directly address the specific threat posed by physical access to network systems. They focus mainly on securing digital entry points rather than controlling physical access, which is crucial in this context.