CompTIA A+ 220-1101

We rely on fiber optics to connect our high-speed and high-bandwidth network links. In this video, you’ll learn about the construction of a fiber optic cable and how multimode and single-mode cables are used on today’s networks. << Previous Video: Network Cables Next Video: 568A and 568B Colors >> Many of us use ethernet over […]

Our network cables are the foundation of any wired connection. In this video, you’ll learn about twisted pair cable categories, coaxial cable, cable shielding, direct burial cable, and more. << Previous Video: Network Tools Next Video: Optical Fiber >> The cabling that’s in your network is the fundamental communications path to the rest of the

A good technician will have the right tool for any circumstance. In this video, you’ll learn about cable crimpers, WiFi analyzers, tone generators, cable testers, and more. << Previous Video: Network Types Next Video: Network Cables >> When are you running new cables, it’s very common to run the cable itself without any connectors on

We use broad categorizations to describe the scope and geography used by our network links. In this video, you’ll learn about LANs, WANs, PANs, MANs, and more. << Previous Video: Internet Connection Types Next Video: Network Tools >> A LAN is a Local Area Network. And although local is a relative term, this usually means

We can connect to the Internet using many different technologies. In this video, you’ll learn about satellite networking, fiber, cable broadband, DSL, and more. << Previous Video: VLANs and VPNs Next Video: Network Types >> There’s more than one way to connect to the internet. In this video, we’ll look at the different internet connection

Whether you are communicating locally or across long distances, there are network technologies that can get your data to the right place. In this video, you’ll learn about the use of VLANs on local networks and how VPNs can be used to protect all network flows. << Previous Video: DHCP Configuration Next Video: Internet Connection

The DHCP process is critical for managing IP addresses on your network. In this video, you’ll learn about DHCP scopes, pools, address assignments, leases, and the DHCP renewal timers. << Previous Video: DNS Configuration Next Video: VLANs and VPNs >> In a previous video, we described the DHCP process as seen from the perspective of

We often take the DNS resolution process for granted. In this video, you’ll get an insight into what happens behind the scenes when resolving an IP address and how the DNS server configuration is used during the resolution process. << Previous Video: Assigning IP Addresses Next Video: DHCP Configuration >> DNS is the domain name

Most of us receive an IP address automatically when we start our computer. In this video, you’ll learn about automatic IP address assignments and what happens when a DHCP server isn’t available. << Previous Video: IPv4 and IPv6 Next Video: DNS Configuration >> In a previous video, we talked about a manual configuration of an

Every device on the network is configured with an IP address. In this video, you’ll learn about IPv4 and IPv6 addressing and the settings for configuring IPv4 on a device. << Previous Video: Network Services Next Video: Assigning IP Addresses >> IP version 4, which you will commonly see written as IPv4, is the primary