Final answer:
Alice is pursuing an isolation strategy by removing the Internet connection entirely, leaving the systems running but inaccessible from outside the quarantine VLAN.
Step-by-step explanation:
Alice is pursuing an isolation strategy by removing the Internet connection entirely, leaving the systems running but inaccessible from outside the quarantine VLAN. This strategy involves disconnecting the systems from the network to prevent any further attack or unauthorized access. By isolating the systems, Alice ensures that they are secure and protected from potential threats.