...Computer or devices Different types of networks – Major LAN ,WAN, MAN , also can, ban,pan 3rd slide- application- staright forward 4TH SLIDE TOPOLOGY DEFINITION- A TOPOLOGY REPRESENT THE RELATIONSHIP OF ALL THE LINKS & DEVICES. MESH TOPOLOGY- EVERY DEVICE IS CONNECTED TO EVERY OTHER DEVICE VIA DEDICATED POINT TO POINT LINK STAR TOPLOGY- STAR TOPOLGY CONSISTS OF A HUB.ALL THE DEVICES ARE CONNECTED TO THIS HUB.THE DEVICES ARE NOT CONNECTED TO EACH OTHER. BUS TOPOLOGY- ALL DEVICES ARE CONNECTED TO THE LONG CABLE(BACKBONE) USING DROPLINES & TAPS. RING TOPOLGY-EACH DEVICE IS CONNECTED TO THE NEXT DEVICE;WITH THE LAST DEVICE CONNECTED BACK TO THE FIRST DEVICE. 5th slide Lan- * Definition-Computer network that interconnects computers in a limited area (for details refer wiki) * Characteristics- higher data-transfer rates(SPEED), smaller geographic area, and minimum need for leased telecommunication lines. * Technology -Previously ARCNET, Token Ring were used..At present Wifi, Ethernet are being used. * Application- home, school, computer laboratory 6th slide Advantages- straight forward 7th slide MAN- * Defintion- A MAN usually interconnects a number of local area networks (LANs) using a high-capacity backbone technology. * Characteristic- Its geographic scope falls between a WAN and LAN. MANs provide Internet connectivity for LANs in a metropolitan region, lower speed than lan. * Technology -High-capacity backbone technology,...
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...network topologies, but the three most common types are LANs, MANs, and WANs. The LAN topology is probably the most common of the three. The MAN and WAN topologies are used but not nearly as much as the LAN topology is, although the WAN is starting to be used more and more because of the growing population of networks. The LAN (Local Area Network) is used so much because it is used in small areas. Small businesses use LANs a great deal because they are small and they wouldnt need a WAN or a MAN because there business is usually ran out of one or maybe two buildings. You will usually find LANs in buildings, schools, and even in homes at times. Some buildings even have multiple LAN's in them for certain purposes. When designing the layout of a LAN, the party can choose from a selection of different technologies on which to base the main part of their LAN. The technology choices that the party adopts will be a critical part in the way their LAN performs. Two important LAN setups are a network based on Ethernet or Token Ring technology. Besides operating in a small space, LANs have some other distinctive features. LANs are typically owned, controlled, and managed by a single person or organization. A WAN (wide area network) goes across large physical distance. Many times a WAN will go almost around most of the world! The most popular WAN is the Internet. The Internet is one big huge WAN and it is also the most used WAN. A WAN is basically a dispersed collection of LAN's. A network...
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...area covered by a network, it is classified as: – Local Area Network (LAN) – Metropolitan Area Network (MAN) – Wide Area Network (WAN) – Personal Area Network (PAN) Local Area Network (LAN) • A LAN is a network that is used for communicating among computer devices, usually within an office building or home. • LAN’s enable the sharing of resources such as files or hardware devices that may be needed by multiple users • • Is limited in size, typically spanning a few hundred meters, and no more than a mile • Is fast, with speeds from 10 Mbps to 10 Gbps • Requires little wiring, typically a single cable connecting to each device • Has lower cost compared to MAN’s or WAN’s Local Area Network (LAN) • LAN’s can be either wired or wireless. Twisted pair, coax or fibre optic cable can be used in wired LAN’s. • Every LAN uses a protocol – a set of rules that governs how packets are configured and transmitted. • Nodes in a LAN are linked together with a certain topology. These topologies include: – Bus – Ring – Star • LANs are capable of very high transmission rates (100s Mb/s to G b/s). Local Area Network (LAN) Advantages of LAN • Speed • Cost • Security • E-mail • Resource Sharing Disadvantages of LAN • Expensive To Install • Requires Administrative Time • File Server May Fail • Cables May Break Metropolitan Area Network (MAN) • A metropolitan area network (MAN) is a...
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...can be as large as the internet itself. It covers the whole geographical world. Types of Networks • LAN • WAN • MAN (i) LAN (Local Area Network) A local area network is a self-contained network. It lengths a small area, such as a single building, floor, or a room. In LAN, all the nodes and segments are connected directly with short range wireless technology or cables. Each computer in a LAN has its own CPU. It executes the programs. It also access the data and devices anywhere on the LAN. Through LAN many users can share expensive devices, such as laser printers, as well as data. The LAN is used by the users to communicate with each other. They communicate through emails or by engaging in chat sessions....
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...networking cards that send and receive data through the air. LAN - Local Area Network A LAN connects network devices over a relatively short distance. A networked office building, school, or home usually contains a single LAN, though sometimes one building will contain a few small LANs (perhaps one per room), and occasionally a LAN will span a group of nearby buildings. InTCP/IP networking, a LAN is often but not always implemented as a single IP subnet. In addition to operating in a limited space, LANs are also typically owned, controlled, and managed by a single person or organization. They also tend to use certain connectivity technologies, primarily Ethernet and Token Ring WAN - Wide Area Network As the term implies, a WAN spans a large physical distance. The Internet is the largest WAN, spanning the Earth. A WAN is a geographically-dispersed collection of LANs. A network device called a routerconnects LANs to a WAN. In IP networking, the router maintains both a LAN address and a WAN address. A WAN differs from a LAN in several important ways. Most WANs (like the Internet) are not owned by any one organization but rather exist under collective or distributed ownership and management. WANs tend to use technology like ATM, Frame Relay and X.25 for connectivity over the longer distances. A MAN is optimized for a larger geographical area than a LAN, ranging from several blocks of buildings to entire cities. MANs can also depend on communications channels of moderate-to-high...
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...the geographical area covered by a network, it is classified as: – Local Area Network (LAN) – Metropolitan Area Network (MAN) – Wide Area Network (WAN) – Personal Area Network (PAN) Local Area Network (LAN) • A LAN is a network that is used for communicating among computer devices, usually within an office building or home. • LAN’s enable the sharing of resources such as files or hardware devices that may be needed by multiple users • • Is limited in size, typically spanning a few hundred meters, and no more than a mile • Is fast, with speeds from 10 Mbps to 10 Gbps • Requires little wiring, typically a single cable connecting to each device • Has lower cost compared to MAN’s or WAN’s Local Area Network (LAN) • LAN’s can be either wired or wireless. Twisted pair, coax or fibre optic cable can be used in wired LAN’s. • Every LAN uses a protocol – a set of rules that governs how packets are configured and transmitted. • Nodes in a LAN are linked together with a certain topology. These topologies include: – Bus – Ring – Star • LANs are capable of very high transmission rates (100s Mb/s to G b/s). Local Area Network (LAN) Advantages of LAN • Speed • Cost • Security • E-mail • Resource Sharing Disadvantages of LAN • Expensive To Install • Requires Administrative Time • File Server May Fail • Cables May Break Metropolitan Area Network (MAN) • A metropolitan area network (MAN) is a large computer network that usually spans a city...
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...CIS 505 Business Data Communications Professor Dr. ED. Lindoo Strayer University Requirements for the Corporate Computing Function By Zena Shabazz The Corporate Computing Function, are needs that the facility must fulfill. The fifth point would be in the 9 point list because it would be a critical aspect of the Corporate Computing Function. The information requirement would implement the intelligence or the knowledge that is needed to support the actions or the decisions of the company. The information is absorbed by human beings. Information requirements dictate data and the processing specifications. I believe that if the information requirements are not correct that whatever follows will not be correct. There are needs that must be fulfilled by every company who uses the requirements for the corporate computing function, a case can clearly be made that requirements 1,3,7,8, and 9 can be satisfied with a distributed arrangement of low-cost servers, workstations, and personal computers. Widespread use of small computers can provide highly individualistic service to all the departments needing computing, allow users to establish and maintain autonomy in their operations using their own equipment, and provide users with hands-on opportunity to enjoy computing use while improving departmental productivity. Two aspects of the needs of users demonstrate the truth of the preceding statement: the need for new applications and the need for short response time....
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... For More Courses and Exams use this form ( http://hwguiders.com/contact-us/ ) Feel Free to Search your Class through Our Product Categories or From Our Search Bar (http://hwguiders.com/ ) Personal Computers on the Internet A personal computer can be connected to LAN (Local Area Network) by using a router. This type of network is a private network that links computers at a single location, such as at a home or office building. A computer with the LAN connection is allowed to different network components like files, software and devices like printers and fax machines with in the private area. A computer can be connected to a router using Ethernet cable, or a router can communicate wirelessly using radio waves. The Internet is wider than the LAN, basically it is network of networks, and it connects the different networks (LANs and/or MANs) available worldwide and makes them public. The internet connection is called WAN (Wide Area Network) that connects millions of smaller networks with over a billion computers connected at any given time. The most basic difference between a LAN and the Internet then, is that a LAN is private and localized, while the Internet is public and worldwide. A LAN is connected to a router using Ethernet cable but the internet links millions of networks through T1 telephone lines, fiber optic cable and other technologies. TO Download Complete Tutorial Hit Purchase Button IT 282 Week 7-Individua-Personal Computers on the Internetl ...
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...can be classified, based on geographical location, in the following categories: wide area network(WANS), local area networks(LAN) and metropolitan area network(MANS). Chronologically, WANs were the first network to appear. They connect computers distributed over hundred miles. They often based upon existing low quality communication links resulting in low communication speeds compared to LAN, WANs provide a limited set of services mainly file transfer and email in background rather than in real time. LANs usually cover regions within a radius of no more than 1.5 miles. They are based on expensive high quality connection links that allow simple method of data transmission at a higher speeds of data exchange (about 100mbps) than allowed by WANS usually LANs provide a range of services implemented online. MANs are intended for serving large cities. Being characterized by rather long distances between network nodes (sometimes 10 miles) they also provide high quality communications links and support high speed of data exchange. MANs ensure economic and efficient connection of LANs providing them accesses to WANs. The most important stage in the evolution of computer network was the arrival of standard networking technologies. These include Ethernet. FDDI and Token ring these technologies allow different types of computers to connect quickly and efficiently. During 1980s LANs and WANs were characterized by significant...
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...rarely used, it divides the connection of a signal between multiple computers. A switch divides multiple computers into separate groupings based on logical or security requirements. The switch usually divide or regroup the computers in the same subnet or local area network (LAN). The router is normally used to transfer data between physical networks. The router transfer the signal to the appropriate place. All this information is transferred around to these different places using a specific language called protocols. Protocols are a format that transmits data between devices. Standards are agreed upon beforehand. For instance, internet protocol version four (IPV4) allows computers to communicate over the internet. (McQuerry, 2008). WAN, LANs, MANs LAN, wide area network (WAN), and metropolitan area network (MAN) are typical types of networks used. LAN is a network that connects computers in small building, offices, and single family homes with network media. LAN can transmit data quickly over limited distances. A WAN, on the other hand, is comprised of multiple LANs connected over multiple geographic locations. While I was stationed in the United States Navy, the Department of Defense used WAN to communicate with Sailors around the world. The network was connected together regardless where is was physically located. The network which connects an office in...
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...09-07-2015 Professor Dennis Herman University of the Potomac Implement a LAN, CAN and WAN for a university with three campuses. Wireless communications allows us to live and work in ways never before possible, offering us flexibility, mobility and a link to our environment that is almost magical. Telecommunications and computer networking have vastly increased our options on how and what we communicate, they have physically constrained us by leashing us with a physical wire to the network. But wireless communications brings us back to a form of communications that is inherently natural to us. There are three main types of networks that will be discussed on this paper, namely Local Area Network (LAN), Control Area Network (CAN), and Wide Area Network (WAN) (Rysavy, 2013). The purpose of this paper is to know what each of these networks are, how they work, and how each of them can be implemented. LAN Network: This is a data communications network connecting terminals, computers and printers within a building or other geographical limited areas. These devices could be connected through wired cables or wireless links. Ethernet, Token Ring and Wireless LAN using IEEE 802.11 are examples of standard LAN technologies. Local Area Network could be interconnected using Wide Area Network (WAN) or Metropolitan Area Network (MAN) technologies. The common WAN technologies include TCP/IP, ATM, and Frame Relay. LANs are traditionally used to connect a group of people who are in the same local...
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...five kinds of networks; LAN, WAN, CAN, MAN, and HAN. The two main types of networks are LAN and WAN. LAN stands for local area network, and WAN stands for wide area network. According to our text “A local area network (LAN) is a data communication system consisting of several devices such as computers and printers.” (The McGraw−Hill Companies, 2006). These devices are physically connected to one another by cables, wireless media, or infrared links. Any network within a building or several that are next to each other is a LAN. A WAN, also known as a wide area network is made up of two or more LAN’s geographically connected. An example of a WAN is when a company or business located in one place has its main offices in one place and other smaller parts of the company in other places all data is shared within the network. There are also three types of hybrid networks, CAN’s, MAN’s, and HAN’s. A CAN or campus area network is like a LAN but on a bigger scale and more diversified, allowing different campus offices and organizations to be linked. For example, at a college the registrar’s office is connected to the bursar’s office. MAN’s which are metropolitan area networks are a large type of network that connects many corporate LANs together. These are not owned just by one entity, they are maintained by a group or company that that sells its networking service to corporate customers. A MAN can also provide a shared connection to other networks using a WAN link. A home area network...
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...ITNW 1425 – Chapter 1 Homework Case Project 1-2 Question: Would you choose a peer-to-peer network or server-based network? Write a list of supplies you might purchase to accomplish this task. What computer configuration tasks might you need to perform? ANS: In this situation I would choose a peer-to-peer network as it would fit perfectly for the six employees who still use floppy disks to get files from one computer to another. They’d each have control of resources for their own machines, training the employees on the new configuration would be minimal and inexpensive for the company and allow each employee to share files through the network. The peer-to-peer network or workgroup impose no centralized control or security over shared resources. Also the loss of a single machine means only the loss of access to the resources on that one machine, the others would continue to function. Any user can share resources on his or her computer with any other user’s computer, and each user can determine what level of access other users have to his or her shared resources. Each user in this group must act as the administrator of his or her computer’s resources. Each user would also have to remember each set of credentials, which can be confusing if they aren’t trained properly in creating secure passwords, which is where efficient training on my part to help them to understand how to create secure passwords, why they’re created and the consequences of not using them properly. Because the...
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...Raven Williams January 14, 2016 NT: 1210 Intro to Networking 1. What are open standards, and what, if any, are the advantages of such standards? Open Standards" are standards made available to the general public and are developed (or approved) and maintained via a collaborative and consensus driven process. "Open Standards" facilitate interoperability and data exchange among different products or services and are intended for widespread adoption. 2. In general, why would a layered architecture be viewed as beneficial? The Benefits of Layered Application Other applications will be able to reuse the functionality exposed by your layers. You will be able to distribute your layers over multiple physical tiers. This can make a very good impact on your application by Improving performance (sometimes), scalability and fault tolerance. The maintenance of your application is easier because of the low coupling between layers. Adding more functionality to your application is made easier. Layers make your application more testable. Building a well formed layers makes the orientation in your application easier. Having your application not layered means that you have to deal with all security threats in one place which is very difficult. Having your application distributed to layers makes it much easier for design and implement Without a good deployment plan it is not trivial to distribute your layers over multiple physical tiers in distributed computing. You need...
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...A network is a group of computers (often called nodes or hosts) that can share information through their interconnections. A network is made up of the following components: Computer systems (nodes or hosts). Network devices that enable connectivity (such as hubs, switches, and routers). The transmission medium provides a path for electrical signals between devices. Network interfaces are devices that send and receive electrical signals. Protocols are rules or standards that describe how hosts communicate and exchange data. Despite the costs of implementation and maintenance, networks actually save organizations money by allowing them to: Consolidate (centralize) data storage Share peripheral devices like printers Increase internal and external communications Increase productivity and collaboration One way to classify networks is based on the role network devices play: Network Type Description Peer-to-peer In peer-to-peer networking (also called workgroups), each computer controls access to its own resources. Security controls on each computer identify who can have access to the computer's resources. Advantages of peer to peer networks include: Easy implementation Inexpensive Disadvantages of peer to peer networks include: Difficult to expand (not scalable) Difficult to support Lack centralized control No centralized storage Windows 7 includes a new feature called a HomeGroup. The HomeGroup is a simple way to create a peer-to-peer network...
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