Final answer:
NAC (Network Access Control) should be utilized to prevent users from gaining access to the network. It enforces policies on devices attempting to access the network based on identity, security posture, and compliance.
Step-by-step explanation:
The technology that should be utilized to prevent users from gaining access to network resources if they can plug their laptops into the network is NAC (Network Access Control). NAC is a security solution that enforces policies on devices attempting to access a network, working in conjunction with the wired network infrastructure. It checks the identity, security posture, and compliance of devices, allowing or denying access based on the policies set by the organization.