Network engineering is a field focused on designing, implementing, and managing computer networks. These networks allow devices to communicate and share resources, such as the internet, local area networks (LANs), and wide area networks (WANs). Network engineers ensure that data flows efficiently and securely between devices. To achieve this, network engineers use various tools and technologies, including routers, switches, and firewalls. They also troubleshoot issues, optimize performance, and maintain network security. Their work is essential for businesses and organizations to operate smoothly and stay connected in today's digital world.