CCNP Enterprise Core (350-401)

A router between sections of the LAN can help keep broadcast domains to a suitable size, providing efficient network communication. Virtual LANs help keep broadcast domains small by providing seperation between hosts on the same network switch. This can allow a network switch to be better utilised by providing different subnetworks across the same network…

The Ethernet protocol began with technologies known as Thinnet (10Base-2) and Thicknet (10Base-5), connecting all devices together using the same coaxial cable and jointed together using T-Connectors. By © Raimond Spekking / CC BY-SA 4.0 (via Wikimedia Commons), CC BY-SA 4.0, Link By © Raimond Spekking / CC BY-SA 4.0 (via Wikimedia Commons), CC BY-SA…

The data link link layer of the OSI midel handles the physical addressing underneath the network layer for communication between two hosts. Network packets include Layer 2 addressing with their unique source and destination addresses known as media access control or MAC addresses for ethernet. A MAC address is a 48-bit address split across six…

The primary function of the network is to provide connectivity between devices. In the past there was a huge variety of different network protocols but today almost everything is based on Traffic Control Protocol/Internet Protocol (TCP/IP). TCP/IP is based upon the Open Systems Interconnection (OSI) model that is made up of seven layers. Each layer…