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Ring, Star, Bus, Mesh.

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Shannon Greenfelder

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Q: Four types of network topologies used in wire based networks?
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What is the network topologies function?

Network topologies is the means in which a network is structured. There are two types being physical and logical. Logical topology shows how data is delivered between a network.


What are two types of network topology?

bus topology and man


Merits and demerits of bus topology?

NETWORK TOPOLOGYNetworks can be classified by their topology, which is the basic geometric arrangement of the network. Different types of network configurations exist for network designers to choose from. Communications channels can be connected in different arrangements using several different topologies. This arrangement allows users to exchange information and share resources (software and hardware).Four basic types of network configurations are star, bus, ring, hierarchical and mesh. Ring, bus, and star topologies are commonly used in LANs and BNs. Star and mesh topologies are commonly used in MANs and WANS. The networks are usually built using a combination of several different topologies.StarBusRingHierarchicalMeshStar TopologyA star topology is one in which a central unit provides a link through which a group of smaller computers and devices is connected. The central computer is commonly called a host computer. A host computer is usually a large computer such as a minicomputer or a mainframe. A file server is a large storage device that provides volumes of data and programs to the other units in the network.In the star network, all interactions between different computers in the network travel through the host computer. The central unit will poll each to decide whether a unit has a message to send. If so, the central computer will carry the message to the receiving computer.Star networks represent a very popular form of configuration for time-sharing systems in which a central computer makes available resources and databases for several "client" computers to share. As such, the star network is appropriate for systems that demand centralized control. The disadvantage of the star network is that a processing problem in the central computer can be paralyzing to the entire system.In a star network, the central unit may be a host computer or a file server. The host computer is a large centralized computer, usually a minicomputer or a mainframe. In contrast, the file server is a large-capacity hard-disk storage device. It stores data and programs files shared by the users on the network. Also, called a network server.Bus TopologyIn a bus configuration, each computer in the network is responsible for carrying out its own communications without the aid of a central unit. A common communications cable (the bus) connects all of the computers in the network. As data travels along the path of the cable, each unit performs a query to determine if it is the intended recipient of the message. The bus network is less expensive than the star configuration and is thus widely in use for systems that connect only a few microcomputers and systems that do not emphasize the sharing of common resources.The problem in a computer on a bus topology does not frustrate the operation of the network, but a crack in the central cable will stop the whole network. Bus topology is popular because many computers can be connected to a single central cable. In a bus topology, each end user computer in the network handles its own communications control. There is no host computer or file server. As the information passes along the bus, it is examined by each terminal to see if the data is for it.Ring NetworkA ring configuration features a network in which each computer is connected to the next two other computers in a closed loop. Like the bus network, no single central computer exists in the ring configuration. Messages are simply transferred from one computer to the next until they arrive at their intended destinations. Each computer on the ring topology has a particular address. As the messages pass around the ring, the computers validate the address. If the message is not addressed to it, the node transmits the message to the next computer on the ring.This type of network is commonly used in systems that connect widely dispersed mainframe computers. A ring network allows organizations to engage in distributed data processing system in which computers can share certain resources with other units while maintaining control over their own processing functions. However, a failure in any of the linked computers can greatly affect the entire network.The ring arrangement is the least frequently used with microcomputers. However, as stated above, it often is used to link mainframes over wide geographical areas to build distributed data processing system. The loss of a mainframe usually does not restrain the operation of the network, but a cable problem will stop the network altogether.Hierarchical TopologyA hierarchical network (or a tree network) resembles a star network in that several computers are connected to a central host computer (usually a mainframe). However, these "client" computers also serve as host computers to next level units. Thus, the hierarchical network can theoretically be compared to a standard organizational chart or a large corporation. Typically, the host computer at the top of the hierarchy is a mainframe computer. Lower levels in the hierarchy could consist of minicomputers and microcomputers. It should be noted that a system can sometimes have characteristics of more than one of the above topologies.This topology is effective in a centralized corporation. For example, different divisions within a corporation may have individual microcomputers connected to divisional minicomputers. The minicomputers in turn may be connected to the corporation's mainframe, which contains data and programs.Mesh TopologyThis is a net-like communications network in which there are at least two pathways to each node. In a mesh topology, computers are connected to each other by point-to-point circuits. In the topology, one or more computers usually become switching centers, interlinking computers with others.Although a computer or cable is lost, if there are other possible routes through the network, the damage of one or several cables or computers may not have vital impact except the involved computers. However, if there are only few cables in the network, the loss of even one cable or device may damage the network seriously.


How many vertices does a docecahedron have?

A dodecahedron is a 3-dimensional shape with 12 (dodeca-) polygonal faces. There are more than 6 million different types of convex dodecahedra. For example, a hendecagon based (11-sided polygon) pyramid, which has 12 vertices;a decagon based prism, which has 20 vertices;a hexagon based dipyramid which has 8 vertices.Then there is the regular Platonic solid, made out of 12 regular pentagonal faces. This has 20 vertices.


What are the three types of geometry?

There are more than three types, although 2 main types are Euclidean and Taxicab Geometry

Related questions

list four types of network topologies used in wire based networks?

Ring, Star, Bus, Mesh.


What is the network topologies function?

Network topologies is the means in which a network is structured. There are two types being physical and logical. Logical topology shows how data is delivered between a network.


What are the types of topologies networking?

Bus star ring mesh hybrid


Classify the networks based on transmission technology?

Classification of networks based on transmission technology?There are two types of networks are available in this transmission technology.They are1.Broadcast Network2.Point-to- Point Network.


What network topologies are most commonly used on today's networks?

star topology. Because they include a centralized connection point; can easily be moved, isolated, or interconnected with other networks; they are, therefore, scalable. For this reason, and because of their fault tolerance, the star topology has become the most popular layout used in contemporary LANs.


How explain different type of Network Address Translation with suitable set of examples?

these are the four types of the topologies such as WAN:-Wide Area Network LAN:- Local Area Network MAN- Metropolitan Area network CAN:- Campus Area Network In these topologies meanings are clear for a name


What Types of network topology and give examples of each topology?

Network Topology refers to the way that cables and other pieces of hardware connect to one another. There are four common "base" types of topologies: bus, ring, star, and mesh. There are other types as well, but these are referred to as "hybrid topologies." The most commonly used network topology is a hybrid topology called the Star Bus Topology.


Type of network?

There are millions of types of different networks in the world. These networks may be as simple as a computer network for example.


What types of networks do the abbreviation LAN and WAN stand for?

Local Area Network and Wide Area Network.


What are two types of computer networks?

Two types of computer networks are LAN (Local Area Network), which connects devices within a small geographic area like an office or building, and WAN (Wide Area Network), which connects devices over a larger geographic area, such as across cities or countries.


What is the explanation for the types of networks?

There are many types of network. such as:- LAN:Local area network. WLAN:Wire less local area network. WAN:Wide area network. MAN: Metropolitan network. SAN:Storage area network,systemarea network


What connecting devices do you use for two or more connected networks?

For two or more connected networks you can use a bridgeto connect them all together.It depends on the two networks. A bridge can only connect two networks of the same type (eg Ethernet or Token-Ring), that also use the same layer 3 network address (eg IP subnet or IPX network #, or AppleTalk network #).A "gateway" device can connect two dissimilar types that share a network address, and a router can connect two networks of different network addresses whether or not they have the same network type.