We use transport-layer protocols to communicate to specific services on a remote device. In this video, you’ll learn about some of the most popular TCP and UDP ports used on our servers.
Common TCP and UDP Ports – CompTIA A+ 220-901 – 2.4 Read More »
Our computers must be configured with the appropriate IP addressing to properly communicate across the network. In this video, you’ll learn about IP addressing, an overview of DNS, DHCP configurations, and the basics of classless subnetting.
IPv4 and IPv6 are the most popular network protocols in the world. In this video, you’ll learn about the structure of IPv4 and IPv6 addresses, the use of private IP addresses, and automatic addressing features in IPv4 and IPv6.
An Overview of IPv4 and IPv6 – CompTIA A+ 220-901 – 2.3 Read More »
Your network signal will degrade over a long distances, when passing through patch panels, and at the connectors. In this video, you’ll learn how to calculate signal loss and recognize symptoms of signal loss on your network.
Calculating Signal Loss – CompTIA A+ 220-901 – 2.2 Read More »
Your network is only as good as the cabling. In this video, you’ll learn about the characteristics of fiber communication, twisted pair copper cabling, cable categories, cabling in the plenum, and coaxial cables.
We use many different connectors in our modern networks. In this video, you’ll learn about fiber connectors, twisted pair connectors and standards, and common coax network connectors.
Inkjet printers are relatively easy to maintain. In this video, you’ll learn about cleaning print heads, replacing inkjet cartridges, printer calibration, and how to properly clear jams.
Maintaining Inkjet Printers – CompTIA A+ 220-901 – 1.15 Read More »
Thermal printers have relatively few maintenance requirements. In this video, you’ll learn about thermal paper replacement, heating element cleaning, and debris removal.
Maintaining Thermal Printers – CompTIA A+ 220-901 – 1.15 Read More »
There are some periodic maintenance tasks that will keep your impact printer running at peak efficiency. In this video, you’ll learn about ribbon replacement, print head replacement, and tractor fed paper replacement.
Maintaining Impact Printers – CompTIA A+ 220-901 – 1.15 Read More »
Laser printers are mechanical devices that require periodic maintenance. In this video, you’ll learn about toner cartridge replacement, maintenance kits, printer calibration, and printer cleaning.
Maintaining Laser Printers – CompTIA A+ 220-901 – 1.15 Read More »
