The process of troubleshooting your network involves a methodology that starts with cabling and works through the OSI model to the application layer. The network devices have a network cable that ...

Transmission media carry data signals from one computer to another. Most modern PCs come with a NIC and wireless NIC built-in, providing the option of either connection method. However, mobile devices ...

This sample chapter from the only authorized companion guide for the Cisco Networking Academy Program introduces newcomers to the basic concepts and components of modern computer networks. The chapter ...

Belle Wong is a freelance writer specializing in small business, personal finance, banking, and tech/SAAS. She spends her spare moments testing out the latest productivity apps and plotting her latest ...

This course introduces students to the fundamentals of computer networking, the OSI stack, and the practical and conceptual skills needed to build simple local area networks, perform basic device ...

This week, we’ll take at look at the signaling system used by the PSTN as we begin to highlight some of the security concerns about networks moving toward a converged infrastructure. Today, we’ll ...