Technology and its rapid progress have opened up new vistas of business, which are characterized by advanced technological appliances, and a marketplace that is hustling with network-dependent services. The Wide Area Network (WAN) or Internet has inverted the functioning of the conventional world by establishing a connected network that is used for sharing resources and communications around the globe. Businesses and WAN jobs are mushrooming at an incredible pace as technology consistently advances by leaps and bounds. The Wide Area Network is a geographically dispersed broad telecommunications network, which transmits data through common communication carrier devices such as telephone lines, fiber lines, microwave links, and satellite channels. WANs interlink Local Area Networks (LANs) to enable communication among users and computers in various locations. The WAN is a critical technology platform on which almost all businesses operate. It is used in all arenas of business for effective communication, data sharing, and most importantly, business continuity. Since many of the businesses are Information Technology (IT) based, and powered by WANs, they are often being referred to as WAN jobs or the WAN business. A WAN job may range from being part of the telecommunication network, the service provider, technology appliances development and manufacturing unit, among others. The WAN business is on the upward trend as business continuity of large as well as medium businesses is predominantly reliant on the Wide Area Network service and communication. Large enterprises connect to their branch offices in remote locations with their private WANs or use the Internet to establish connectivity. WAN optimization and WAN acceleration are crucial aspects in the WAN business. Optimizing the Wide Area Network increases application performance and ensures continuous “uptime” regardless of network or any other outages. A stable and robust WAN is required to serve the mission critical applications of a wide customer base. Security and reliability are other crucial factors that are to be considered, since business-sensitive information is being transferred across the Internet. Any WAN job has to consider all these important elements. A paradigm shift can be noted in today’s technology offerings, which is due to the widespread application of networks in every area of business and life. Many WAN companies, i.e. technology companies are competing with each other and bringing about more enhancements to existing technology. Business continuity, the core of business operations, is reliant on high data throughput and optimized WAN performance and continuous WAN availability. Any WAN company focuses on these issues since transmission delays or failures can cause low throughput levels and in turn affect productivity and revenue of enterprises. Large enterprises use leading edge technology solutions providers to improve the performance of Wide Area Networks. Apart from the basic network, the performance of a WAN also depends on the hardware components and the configuration that it uses. Several devices are utilized as suited to the particular WAN domains. Some of the important WAN hardware components are WAN switches, access servers, modems, routers, ISDN terminal adapters, ATM switches, and multiplexers. Common devices such as the Router, Modem, etc., use advanced technology to perform their tasks in the most efficient way. Routers are devices, which forward packets of data on the network. Located at the connecting point of two or more networks, i.e. the gateways, a router connection facilitates file sharing between multiple computer systems. A secure router guide will help in efficient usage of this device. In the same way, there are WAN tutorials made available by technology companies, which guide business persons and individual users. The IT revolution has opened up many avenues of businesses that are supported by Wide Area Networks for communication, sharing, and transaction. This industry will continue to grow driven by innovation. This in turn ensures a steady need for experienced workers and innovators.