Part 2 of 3 in the CompTIA A+ 220-801 series covers all the essential information you need to get started with a career as a computer technician. In this course, you will learn to install operating systems, perform preventative maintenance, and develop networking, security, and troubleshooting skills. No prerequisite knowledge or experience is required. If you are brand new to IT, don't have any formal computer hardware or software training, or are looking to change careers, this course is a great place to start.
Ed Liberman has worked in technology for over 20 years. He has been certified and instructing IT since 1998. He has helped thousands of people to get started or advance their careers in the IT industry.
Network Cabling and Connectors Welcome to Train Signal. You're watching a lesson on network cabling and connectors. Now I will tell you that this is the first of a series of lessons that I have put together for you here. They have to do with the networking aspect of computing. And you may be thinking to yourself, "well wait a minute, I thought this was an A plus course and this is all about building computers and all about the computer components. " Well keep in mind that one of the primary components in well, pretty much all of today's computers, is some form of network card, okay, or communications card, or some way to have that computer talk to another computer. So networking is a major part of computing in today's world, and that's why I have these lessons on networking for you.
Types of Networks Welcome to TRAINSIGNAL, you're watching a lesson on the different types of networks. Now there are three main sections that we're gonna have to this lesson. The first one I like to call LANs, WANs, and automobiles. No no no (laughs). That's just a little joke if you've ever seen the movie Planes, Trains, and Automobiles. But basically it's LANs, WANs, and well, so much more. It's LANs, WANs, MANs, CANs, PANs. There's all kinds of ANs. And so we're gonna take a look at those here. After that, we're gonna take a look at something called network topologies, and then we'll wrap things up by looking at internet connectivity, those types of networks. Let's take a look at all of our ANs. Which, by the way, the AN part, A-N, is area network, and that's gonna be true in all of these. The first one I have here is a LAN. That's probably the most common AN that we hear, a LAN, stands for Local Area Network. It means just that, it means a network that is, well, there's a lot of, you know, differences of opinion on exactly what makes up a LAN, but basically it means one network contained within a building, that's the illustration I have here. Sometimes even within a building, they'll say if it's on a certain subnet, remember in a previous lesson I talked about the different types of networks, and that you need a router to go to another network. And even within your company, within your building, you might have these different networks, and they're called subnets. Some people think these individual subnets are a LAN. I wouldn't get too hung up on it, the bottom line is if you think of the name, local area network, it means just that, it's local. It's a small, localized network, typically within a building.
Network Tools Welcome to TrainSignal. You're watching a lesson on Network Tools and in this lesson, I'll tell you what, this is gonna be kind of a direct and to-the-point lesson where we're gonna take a look at a number of the different tools that you would use if you are going to work on computer networks, as opposed to some of the tools that you might use, you know let's say to build a computer or repair a computer. These are tools that you would use to work on a network.