A network is defined as a group of two or more computer systems linked together

The network operates by connecting computers and peripherals using switches, routers, and access points. These devices are the essential networking basics that allow the various pieces of equipment connected to your network to communicate with one another, as well as with other networks.

Validates the essential knowledge and skills needed to confidently design, configure, manage and troubleshoot any wired and wireless networks.

All networks provide the same basic functions to transfer a message from sender to receiver, but each network can use different network hardware and software to provide these functions. All of these hardware and software products have to work together to successfully transfer a message.

Networking has thus become an increasingly pervasive, worldwide reality because it is fast, efficient, reliable and effective. Just how all this information is transmitted, stored, categorized and accessed remains a mystery to the average computer user, but not to us networking professionals.

TCP/IP refers to a family of protocols, which includes TCP (Transport Control Protocol), UDP (User Datagram Protocol), IP (Internet Protocol), and some underlying link layers, such as Ethernet. Data that are sent using the TCP protocol are referred to as segments, and data sent using the UDP protocol are referred to as packets