Exploiting a vulnerability aims to gain unauthorized access to a system or network to assess the impact and effectiveness of the defense mechanisms.

A zero-day attack is an attack that targets a vulnerability that is unknown to the software vendor or has not been patched yet.

Tools like Metasploit and Wireshark are used by penetration testers to identify and exploit network vulnerabilities.

Privilege escalation refers to the process of gaining higher-level access privileges than those originally granted, often to perform unauthorized actions on a system.

A DoS attack aims to make a system or network resource unavailable to its intended users by overwhelming it with excessive requests.