This assignment solution addresses network security principles within the context of a practical scenario involving Jim's Trade Supplies (ITS). The student begins by analyzing the company's floor plan to design a secure network infrastructure, including the strategic placement of network devices and the implementation of a DMZ zone to enhance security. The solution details the creation of an incident response plan, password protection for network devices, and the configuration of wireless access points and internet access policies. The assignment also covers the configuration of various network devices using Packet Tracer, including changing router passwords, setting up wireless networks, and configuring PCs and printers. The solution demonstrates an understanding of key network security concepts, including access control, data protection, and incident management, and provides practical steps for implementing these concepts in a real-world environment.