macOS Support Essentials 10.15 - Apple Pro Training Series: Supporting and Troubleshooting macOS Catalina

Lesson 21. Manage Basic Network Settings

Goals

• Describe TCP/IP networking concepts

• Configure and monitor network settings

• Connect to a Wi-Fi network

In this lesson, you learn about networking concepts and configure settings for Ethernet and Wi-Fi networks.

Reference 21.1 Network Terminology

There are three basic networking elements: the network interface, network protocols, and network service.

Data flows through the network interface. Network interfaces can be physical or virtual. The most common physical network interfaces are Ethernet and 802.11 wireless (called Wi-Fi). You can use virtual network interfaces to increase the functionality of the physical interface. For example, a virtual private network (VPN) uses the existing physical ...