What type of security tool should Tracy deploy to protect systems from network attacks based on various detection methods?

HIPS, or Host Intrusion Prevention System, is a security tool specifically designed to protect systems from network attacks by taking proactive measures based on various detection methods. It not only detects potential threats but also responds by blocking or preventing them in real-time. HIPS operates at the host level, monitoring the activities and processes on a single machine, thus allowing it to analyze inbound and outbound network traffic as well as system behaviors.

This capability enables HIPS to identify and mitigate attacks before they have a chance to exploit vulnerabilities within the systems. It integrates signature-based detection, which relies on known attack patterns, and anomaly-based detection, which looks for deviations from normal behavior, making it a versatile tool in safeguarding a computer or server environment against a wide range of threats.

In contrast, other options might offer functionality that does not align as closely with proactive detection and prevention. For example, while a firewall primarily controls access to and from a network and an IDS (Intrusion Detection System) focuses on monitoring and alerting regarding potential intrusions, it lacks the capability to intervene actively to stop an attack. A VPN (Virtual Private Network), on the other hand, is designed to create secure connections over a public network but does not directly address intrusion prevention or detection capabilities