Free CompTIA Network+ Training

We rely on Spanning Tree Protocol to keep our switched networks loop-free. In this video, you’ll learn about the process that Spanning Tree uses to maintain uptime and availability as our networks change. << Previous Video: VLANs and Trunking Next Video: Interface Configurations >> In an earlier video, we described how IP version 4 has […]

VLANs are an effective and efficient form of network segmentation. In this video, you’ll learn about VLANs, trunking, and configuring voice and data VLANs. << Previous Video: Network Switching Overview Next Video: Spanning Tree Protocol >> Many network administrators like to segment the network into different broadcast domains. This is sometimes done to allow additional

If you’re going to troubleshoot a network, then you need to understand the basic functionality of an Ethernet switch. In this video, you’ll learn the fundamentals of Ethernet switching, the address resolution protocol, power over Ethernet, and more. << Previous Video: Introduction to Ethernet Next Video: VLANs and Trunking >> The role of a switch

Ethernet is the most popular networking topology in the world. In this video, you’ll learn about the Ethernet frame, MAC addressing, half- and full-duplex communication, and more.  << Previous Video: Routing Technologies Next Video: Network Switching Overview >> Here’s a common network configuration for a SOHO, a Small Office/Home Office. You have an internet connection.

The router is a foundational infrastructure platform for layer 3 networks. In this video, you’ll learn about routing tables, default routes, administrative distances, and more. << Previous Video: Dynamic Routing Next Video: Introduction to Ethernet >> When we send traffic across the internet, that packet is stopping at every router along the way and asking

Many networks and Internet sites rely on dynamic routing protocols to properly connect users to their services. In this video, you’ll learn about distance vector, link-state, and hybrid dynamic routing protocols. << Previous Video: Networked Devices Next Video: Routing Technologies >> We’re surfing around to different websites. We often don’t think about the process it

We use our modern networks to connect many different devices. In this video, you’ll learn about VoIP phones, access control devices, cameras, IoT devices, and more. << Previous Video: Advanced Networking Devices Next Video: Dynamic Routing >> We connect many different kinds of devices to our wired and our wireless networks. In this video, will

The core of a data center network can contain many different networking devices. In this video, you’ll learn about layer 3 switches, wireless LAN controllers, load balancers, and more. << Previous Video: Networking Devices Next Video: Networked Devices >> The manufacturers of network infrastructure devices have realized through the years that if they could put

We use many different devices to connect our enterprise networks. In this video, you’ll learn about switches, routers, access points, cable modems, and other common networking devices. << Previous Video: Designing the Cloud Next Video: Advanced Networking Devices >> A hub is a basic form of Ethernet connectivity. This is a picture of a very

As we design our cloud infrastructures, we may implement a number of useful technologies. In this video, you’ll learn about infrastructure as code, orchestration, VPC endpoints, VM sprawl, and more. << Previous Video: Cloud Models Next Video: Networking Devices >> The cloud has completely changed the way that we implement and design our applications. One