CompTIA Security+ SY0-701 Practice Question
A company suspects that an attacker has been attempting to gather sensitive information by intercepting traffic on its wired network. Which of the following measures is MOST effective in preventing the attacker from gaining useful information?
Changing the default passwords on network devices.
Encrypting the data in transit over the network.
Implementing a firewall between the wired network and external systems.
Disabling all unused services on the network hosts.