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Computer Mathematics Practice Now that we’ve covered the basics of computer mathematics, let’s go through a couple of practice problems. Now as we go through this lesson, I want you to pause the video and try to answer the questions yourself, and then restart the video to see if you got the right answer. Now we want to make sure that you can convert from binary to decimal and from decimal to binary, because this is crucial as we move into subletting. So remember, if you’re going from binary to…

IPv4 Addressing IPV-four addressing As a result, IPV 4, or Internet Protocol version 4, This is extremely commonly used in our networks. Now, you’ve probably seen these addresses before. They’re written in what’s called dotted decimal notation. So some examples of those would be ten dot one, dot two, three, or 172 21 dot 2243 dot 67. Each IPv4 address is divided into four separate numbers, each divided by dots, hence dotted decimal notation. Each of these divisions is referred to as an “octet” because it contains eight bits. Each…

Introduction to the Network+ (N10-007) Course Welcome to the network, plus N ten seven complete course. In this course, we’re going to teach you everything you need to know to take and pass the CompTIA Network+ exam. We’re going to COVID all five domains, including networking concepts, infrastructure, network operations, network security, and network troubleshooting, and tools. We’re going to take you from zero knowledge to passing knowledge across all of these domains. As you progress through the course, we’re going to build upon each section to give you more…

Spanning Tree Protocol (STP) Spanning tree protocol, or STP. Now, the spanning tree protocol is an additional Ethernet feature, as we mentioned in the last lesson. But because it’s really important, I’ve broken it out into this video alone. It is called the 802 1D protocol, and so I want you to add that to your note sheet as well. spanning tree protocol 802 What is the name of the spanning tree protocol? Well, it allows us to have redundant links between switches and prevents loops in the network traffic….

Ethernet Fundamentals Ethernet fundamentals. So in early computer networks, there were so many different network technologies out there, and each of them was competing for a piece of the market share. There wasn’t a lot of standardisation, so we had things like Ethernet, Token Ring, Fiber Distributed Data Interface, or Fit, and others that were all fighting to be the dominant market leader. Well, currently we have one market leader, and that is Ethernet. It is dominant for layer-one networks. And so in this entire section, we’re going to focus…

Introduction to the CompTIA Cloud Plus Exam (CV0-002) I’m over here at the CompTIA Club plus webpage at the CompTIA website. Now this page is still referencing CV 1. That’s the first revision of the exam. Now you’re getting sort of a head start here, to be honest. Taking this specific course before it’s officially released in February is what I’m understanding at this point, and that’s February 2018, and I will update it once this new page is up. But I took the beta exam about two months ago,…

Resource Contention When it comes to the cloud, we can certainly expect to have some level of resource contention at one time or another. When it comes to managing a resource conflict, we need to look at it from at least several different angles. And so, what does that really mean? Let’s proceed and talk about the different ways contention can happen. The reality is that there is generally contention when demand exceeds supply. For example, if you have a retail application and this retail application is being scaled out…

Forecasting Resources Forecasting resources when it comes to managing your cloud environment. One of the day-to-day challenges that operations will face is determining the appropriate amount of resources to allocate at what time and identifying any performance issues that need to be addressed. So this is where forecasting really sort of comes into play on this exam. There’s going to be a couple areas around forecasting that we want to make sure you understand before you take this exam. So, what exactly is forecasting? This is a process of making…

Storage Management Let’s talk about storage. Well, storage is one of those things in the cloud that you either get or don’t. and you’ll figure it out really quickly if you do. Especially if you notice that your cloud bill is increasing by 30% every quarter and you have no idea why. When it comes to storage, you must understand that there are various approaches, use cases, costing methods, and technologies to consider. So with that said, just be aware that you’re going to need to understand the right type…

Backups and Restores Backup and Restore Considerations When you’re looking at using the cloud for either backups or restores, there are some considerations that you really should be aware of. Let’s go ahead and talk about some of those. The first is the SLA. For those that need a refresher, the SLA is essentially an agreement between you and a provider that generally states agreements on what to measure and why, and how to measure backup and restore. That’s the KPIs, for example, how to use and validate results, and…