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Introduction to Databases Databases are incredibly powerful and useful in modern computing. To new users, though, they can seem difficult or opaque. So let’s clear that picture right now, starting with what you know. We have a teacher, Eliza, who wants to keep track of her math students throughout the semester. She needs to record information such as student names, maybe demographic information like gender or race test scores, notes on improvements or discipline, and so on. By recording this information, she can track how the students are doing during…

Troubleshooting 101 But you’ve spent a lot of time viewing and thinking about how modern computing devices work. This episode explores a framework for troubleshooting with your skills and knowledge, and learning how to recognize when to contact tech support to escalate the problem to the pros. Every computing device has four components that interrelate the central machine for processing and storage, input and output devices to enable you to interact with it, an operating system to tie the hardware together into something usable, and applications to help you do…

Physical Security That means you need to recognize the types of threats out there, what the bad guys might try to do to get through your security. These include the obvious stuff like smashing a window and flat-out stealing from you. But it also means other things, like piggybacking on your Wi-Fi without permission. Plus, because we live in an online world, a lot of local security gets threats from network sources. That means the line between local security and network security blurs. It’s complicated and easier to show than…

Introduction to Programming You have hardware, the stuff you can kick, the physical part that handle processing. You have the operating system like Windows or Android, that enables people to interact with the hardware, to tell the hardware what to do. And finally, you have programs or apps, things dedicated to accomplishing specific tasks. The CompTIA It Fundamentals plus exam expects you to have a certain level level of knowledge about how programs work. This episode starts that process. What’s the most common computing device? A smartphone. Right. What can…

Power Management What? No, really bad timing for the electricity to go out. Luckily, I can adjust the power management settings on my laptop to preserve as much battery life as possible. Let’s take a look in Windows. Open Control Panel and go to the power options. Applet. This gives you a lot of control over energy usage and, in the case of portable computer, helps preserve battery life. Click the change plan settings link to show the edit plan savings dialog box. Here you can change the brightness of…

DHCP and Security Solutions for the Fabric Domain SD access does not require any changes to existing infrastructure services. Although fabric border devices have implement abilities to handle the DHCP relay functionality differences assisting fabric deployments depreachability in the fabric in a typical DHCP relay design the unique gateway IP address determine of net address assignment for an endpoint in addition to the location to which the DHCP server should direct the offered address in a fabric brick overlay network, that gateways not unique the same. 3Anycast IP address exists…

SD Access Fabric Constructs It is important to understand how SD access and other technologies such as Sdvan interact with data centers based Osco ACI and with infrastructure that has implemented either Cisco Trust SEC or VRFs. The important understanding how these technologies intersect and how policies are translated between environments cannot be overlooked. As August ions begin the process of migrating to a full Ibn model, existing segmentation strategies Varco, ACI, RFS or Cisco Trust SEC will influence decisions regarding how virtual networks at the macrosegment level and scalable…

Discovering Service Provider Managed VPN’s Hello and welcome to Discovering Service Provider managed VPNs. This video will overview the topics that are presented in action, as well as inform you of what you will be able to understand and achieve by directing your attention to the design recommended provided. Characteristics and attributes discussed in addition to the examples, case studies and explanations of the architectures and features emphasized in this section. Let’s begin. The basic premise begins with how business enhance their service and product offerings by outsourcing network traffic…

SD Access Node Roles Each fabric site includes a supporting set of control plane nods, Edge nods, border Nods, and Wireless land controllers ISD appropriately from the listed categories. Ice Policy Nods are also distributed across the sites to meet survivability requirements in a single physical network. Multiple fabrics can be deployed for this case, individual fabric elements control plane Nods, border Nods, Edge nodes and WLCS are assigned to a cycle only. Customers can achieve higher precision, faster investigation, and can leverage the latest Cis working capabilities to avoid,…

Discovering SD Access Architecture Hello, and welcome to discovering the Cisco SD. Access architecture. This video will give you insight into what you are able to understand after reading this section. I have been working with the technologies discussed in this section for of years and the most challenging part for the majority of people is to fully understand the benefits in time, cost and effectiveness, all of which are explained very well. Take the time to make those connections with the material. Let’s begin. Digital Network Architecture cisco DNA…