Simply put, computer networking is the study of how computers can be linked to share data. The concept of connecting computers dates back to the 1960s, when the Department of Defense led the first ...

The big difference between Layer 2 vs Layer 3 has to do with addressing. Better yet, think of it as local addressing vs long distance addressing. Layer 2 networks use what is called a MAC address ...

The Data Link Layer is one of my favorite layers of the OSI Model. Like a father who loves ALL of his children equally, but in different ways, I also love the other layers, but Layer 2 will always ...

In the enterprise, data link protocols provide functions such as finding a path and managing parallel paths. In LANs, the most common kind of learning is finding a path through a set of network ...

It's mostly Ethernet- although cable companies use a different layer 2- Docsis. Wireless ISP might use 802.11 and other wireless L2. There used to be ATM, but it's mostly been eaten by ethernet.