What is a Wide Area Network (WAN)?




What exactly is a WAN? A wide area network (WAN) allows multiple computer systems to communicate over large geographic distances using both wired and wireless technologies. In addition, the data can be transmitted using different types of networks including Internet Protocol (IP), asynchronous transfer mode (ATM) and frame relay.[1] In this article, we’ll look at how WANs work, how to set up your own, and how you can use them to connect with customers on the other side of the country or the world.


What is a Wide Area Network (WAN)?

A wide area network, also known as a WAN, connects computers that are in different geographic locations. These are networks that span across long distances and can cover large areas. In this type of network, the connections between different networks are mediated by telephone lines, satellite connections or fiber-optic cables. 

A WAN can be either public or private. In a public network, there are numerous users who have access to it. In a private network, there's only one user who has access to it. An example of a public WAN is the Internet; an example of a private WAN is an Intranet. One might wonder what a private network does differently from a public network like the internet. 

The answer would be privacy. Security on a private network is usually much better than on a public one because of the lack of people on it to get through security features like firewalls and antivirus software. Privacy may not always exist though if someone has physical access to your computer via wire or wireless connection - so strong encryption practices need to be implemented for greater privacy protection, for instance when banking online securely with a credit card. When creating a wide area network, steps should be taken to secure it from intruders such as installing antivirus software and configuring operating system and router settings appropriately. 

It is important to protect data integrity by backing up files and protecting them against unauthorized access. System availability should be monitored periodically to ensure that systems remain functional and recoverable in case of a disaster. Such disasters could be power failures, fires or natural disasters. Data transmission rates must be considered when designing a WAN. 

They depend on how quickly packets of information are passed back and forth between two points over the network infrastructure, including routers and switches. Packets per second is typically used to measure data transmission rates in kilobytes per second (Kbps). 

Higher transmission rates generally provide higher bandwidths but require more expensive equipment to maintain that high rate. Low transmission rates tend to use less expensive equipment but offer lower bandwidths than higher ones do. Service Level Agreements specify how many bits per second a particular service provider will provide for their customers at any given time frame


How does a WAN work?

A wide area network, or WAN, is a computer network that covers a broad geographic distance. Generally, the term wide refers to spanning over many kilometers of ground. A WAN typically connects multiple LANs at different locations into one large network. This allows users who are not physically near each other to share resources and communicate with each other as if they were on the same local network. 

A WAN usually consists of two or more data transmission links between two or more nodes, such as computers and routers. These transmissions allow packets to be routed from one node to another in order for data to get from one end of the WAN to another end of the WAN. 

Transmission speeds can vary widely depending on what kind of medium is being used. With any given link, bandwidth depends on how much information can be sent in a unit of time; wider bandwidth means more information can be sent in less time. 

Transmission speeds may depend on whether the connection is circuit switched or packet switched, which will be explained later in this post. The type of medium also influences the speed. 

Circuit switched connections tend to have a lower latency than packet switched connections, but they also have a higher overhead. There are various types of networks that fall under the WAN category: cellular networks, satellite networks, wireless networks, microwave networks and fixed wire line networks. 

All these types of networks can be categorized under the wide area network definition. Wireless networks, like cellular and Wi-Fi, are becoming more common in recent years because they provide mobility for people. 

However, due to their lower bandwidth compared to cable based systems, people generally use wireless when web browsing is all that's required. Satellite networks work by connecting a group of terrestrial lines together through earth orbiting satellites. They often provide service where no other service exists such as remote areas with little infrastructure development or extreme weather conditions like rainforests or deserts.


What are the benefits of using a WAN?

A wide area network, or WAN, is an interconnected system of computers that spans large geographic distances. The different types of networks are typically categorized by their geographical size: 

LANs connect computers that are in close proximity to one another. These types of networks can be found within schools and corporations. 

MANs connect geographically remote LANs over telephone lines or other types of connection. These types of networks can be found in libraries and universities. 

A WAN connects two or more MANs and allows the users on these networks to share information with one another via the internet. With a WAN, institutions such as hospitals and law enforcement agencies have access to services no matter where they're located. For example, if there's an emergency situation that requires immediate response from police officers outside of their region, they would be able to communicate with others who live nearby without any delay. 

In addition, because of its huge scope, the data obtained through the use of this technology can often provide insight into certain trends across all connected regions. For instance, if it were discovered that most school districts were experiencing overcrowding problems in one particular region through data gathered from school districts nationwide, plans could be made for future expansions as well as interventions for overcrowded regions before things get worse . 

That's not possible when only looking at one location at a time. Other benefits of using a WAN include improved coordination among multiple organizations, which helps them do what they do better and faster, as well as saving costs on management. It also opens up new opportunities for collaboration and innovation. There are challenges to using a WAN as well. 

It has been shown that many people find it hard to work remotely due to personal preference and compatibility issues. Another downside is that cyber criminals have fewer obstacles than those trying to stop them, which means they can wreak havoc on a greater scale than ever before. 

However, this doesn't mean that we should give up entirely. Rather, what needs to happen is increased awareness about the risks associated with these devices so people know how best to protect themselves against harm while still benefiting from the good parts of connecting everyone together in new ways! 

As stated above, there are a number of benefits associated with using wide area network devices. Understanding some of these advantages can make it easier for you to decide whether or not one is right for your company/organization. 

One key benefit is savings related to cost. Like mentioned above, having connections spread out across wide areas makes sense economically since you aren't paying connection fees each month just to keep them going. You may even save money by being able to negotiate cheaper rates and package deals in bulk if your organization purchases enough bandwidth to connect several different locations at once rather than negotiating individual deals with each company you'll need service from individually!


Are there any disadvantages to using a WAN?

There are many advantages to using a wide area network. For example, the WAN can be used to share resources and information between different physical locations. 

But there are disadvantages as well. For example, WANs often rely on networks that require ongoing maintenance, which can make them more expensive in the long run. Additionally, they can suffer from high latency and low bandwidth speeds when communicating across multiple geographical areas. These factors should all be considered before deciding if a WAN is right for your organization's needs. 

There are many advantages to using a wide area network like sharing resources and information between different physical locations but there are also disadvantages like high latency and low bandwidth speeds when communicating across multiple geographical areas so these factors should all be considered before deciding if a WAN is right for your organization's needs 

Though it can provide several benefits, a WAN does have some drawbacks. Because it requires ongoing maintenance and involves complex hardware, it’s often more expensive than other types of networks. Also, because it typically uses less-reliable forms of communication like satellite or dial-up lines, latency—the delay in getting an answer back after you ask something—and low bandwidth can slow communications down considerably. 

Plus, because data gets sent around without any sort of encryption to protect it, anyone with access can see what’s going on. In other words, while they’re great at covering large distances over bad infrastructure, they’re not very secure. If you're handling sensitive data, this could put your company at risk. However, despite its drawbacks, the WAN offers significant advantages. 

One of its most significant strengths is that it allows you to use existing computer equipment rather than relying on specialized devices. And unlike another type of network--the LAN--it doesn't care how far apart the systems are: one office can connect to another regardless of where they are in relation to each other.

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