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Lab - Researching
WAN Technologies

Researching WAN Technologies
Introduction
WAN NETWORK FEATURES
It has machines dedicated to the execution of user programs.
It has elements of data switching such as routers.
The transmission of data is usually by optical fiber and satellites.
Sometimes WAN networks are built especially for some company that has offices in various parts of the country or continent.
It extends over a wide geographical area.
What is a dedicated line and what does it allow?
A dedicated line is a reliable and secure solution for connecting different locations, which also allow access to the Internet if desired. In this way, the need for data and voice transmission between those geographically dispersed offices and the central office is solved, defining a closed group with mesh or star topology.
Since it is becoming increasingly important for companies to have high quality access with the Internet and its delegations, a dedicated access line (which is a dedicated line) allows high quality and availability based on SLA contracts (Service Level Agreement) that guarantee a certain level of availability.

Dedicated lines offer benefits to companies, such as:
Service Level Guarantees (SLAs).
Great capillarity in the metropolitan area.
High availability of service.
High flexibility, being able to increase bandwidth quickly.
What is a WAN network?
In computer science, it is called WAN network (Wide Area
Network, Wide Area Network) to the largest computer connections, that is, the most comprehensive and fastest, which cover a large geographical portion of the Internet. planet, when not the whole world.
WAN networks incorporate several smaller networks into one, interconnecting users separated by enormous distances, with higher transmission rates and with different levels (layers) of data.
This implies the need for machines dedicated entirely to the execution of user programs (hosts), the presence of routers and switches, or the use of sub-network masks to connect several hosts.
WAN network types:
WAN networks can be of different types, for example:
WAN network by circuits. These are telephone dialing networks, which receive the full dedication of the bandwidth while using the telephone line, but they are slow and occupy the telephone line.
WAN network per message. It consists of computers
(switches) that accept traffic from each of the terminals in the network and manage the flow of information through messages (and information in the header thereof) that can be erased, redirected or automatically answered.
WAN network by packages. The information in these cases is divided into small parts (packages) and once they arrive at their destination they are again integrated into the original message.
WAN networks promise to be the technology of computer integration of the future, which allows even more instant communication at all levels of various sectors of the day to day (work, leisure, documentation, purchases, etc.).

Conclusion
The Internet allows connection to a huge set of data online.
A perfect example of a WAN network is the Internet, also known as the World Wide Web, which allows the connection to a huge set of data available online, from anywhere in the world that has an access point and an ISP (Internet Service Provider,
"Internet Service Provider").
The same applies to national banking networks, which administer secret financial information, or to subscription television networks, which use satellites and other mechanisms to issue a pay signal to subscribing households.