A technician is tasked with installing a network device that allows for internet connection from the ISP but blocks all sites on the company's deny list. Which of the following devices is MOST…

A router primarily directs network traffic between different networks, but while some routers have basic filtering capabilities, a firewall is specifically designed for comprehensive security rule enforcement like deny lists.

An Intrusion Detection System (IDS) monitors network traffic for suspicious activity and alerts administrators, but it does not actively block traffic.

An Intrusion Prevention System (IPS) does block malicious traffic, but its primary function is to identify and prevent known threats and attacks, not typically to manage a company-wide deny list for general website access, which is a core function of a firewall.

A firewall is a network security device that monitors and filters incoming and outgoing network traffic based on predefined security rules. It can effectively block access to specific websites-using URL filtering, IP blacklists, or domain-based rules-while permitting general internet connectivity, directly addressing the requirement to block sites on a deny list.