Answer:
Implement a blacklist on the firewall and add the site the users are visiting.
Step-by-step explanation:
A manager in a small office is asking if it is possible to limit network access to a particular website during business hours. Apparently, several users are spending an excessive amount of time on the site preventing them from completing their work-related tasks. The best solution to accomplish the request from the manager is to implement a blacklist on the firewall and add the site the users are visiting.