A network in an IT environment term which describes a series or group of connected devices that share various services and data. A network allows users who are connected to the network to share documents, websites, databases, emails, messages, music, printers, faxes and other devices. There are various types of networks depending on the size and functionality of the network. Two of the most common network types include the Local Area Network and the Wide Area Network. Give yourself the CCNA Kick Start training advantage with this course.