As described above, wide area networks are a form of telecommunication networks that can connect devices from multiple locations and across the globe. WANs are the largest and most expansive forms of computer networks available to date.
These networks are often established by service providers that then lease their WAN to businesses, schools, governments or the public. These customers can use the network to relay and store data or communicate with other users, no matter their location, as long as they have access to the established WAN. Access can be granted via different links, such as virtual private networks (VPNs) or lines, wireless networks, cellular networks or internet access.
For international organizations, WANs allow them to carry out their essential daily functions without delay. Employees from anywhere can use a business’s WAN to share data, communicate with coworkers or simply stay connected to the greater data resource center for that organization. Certified network professionals help organizations maintain their internal wide area network, as well as other critical IT infrastructure.
