The script is performing a port scan on the network 192.168.0.0/24, by testing the connectivity of three ports (80, 110, 25) on each IP address in the range 1-254. A port scan is a technique used to identify open ports and services on a target host or network. It can be used for reconnaissance, vulnerability assessment, or penetration testing. Reference: * The Official CompTIA PenTest+ Instructor Guide (Exam PT0-002) eBook, Chapter 3, Lesson 3.2, Topic 3.2.2: Perform a port scan * PowerShell TCP port scanner, Stack Overflow answer by postanote * PowerShell Basics: How to Scan Open Ports Within a Network, Tech Community blog by Anthony Bartolo