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Which of the following network topologies is most common on today's networks?
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Definition of irregular topology?
A topology is the physical configuration of a network. Each network has their own particular type of topology, with the most common being LAN or WAN. Irregular topology is a common topology of LAN, where the information is sent through random connections between computers.
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.
Which of the following is the graph of an arithmetic sequence whose first term is 2 and whose common difference is 0.5?
Since there are no graphs following, the answer is none of them.
What do the following two expressions have in common three to the second power and three squared?
They both have a value of 9
What is the three most common network strategies?
The three most common network strategies are: Centralized Network: In this strategy, control and decision-making are concentrated at a central point. It offers streamlined management and efficient resource allocation but can be vulnerable if the central node fails. Decentralized Network: Decision-making is distributed among nodes, promoting autonomy and redundancy. It enhances resilience but may lead to coordination challenges. Distributed Network: Nodes interact directly, sharing resources and information. It fosters collaboration and adaptability but can be complex to manage and secure.
What is the definition of concept network?
A network or the network's layout. How different nodes in a network are connected to each other and how they communicate are determined by the network's topology. Topologies are either physical or logical. Below are diagrams of the five most common network topologies.
Describe the four common topologies used in networks today?
Ring, Star, Bus, Mesh.
What are the 3 common Lan topologies?
There is actually more than three topologies for networking. Network topologies are categorized into the following basic types: * bus * ring * star * tree * mesh More complex networks can be built as hybrids of two or more of the above basic topologies.
What are the types of bus topology?
There are two basic categories of network topologies Physical topologies Logical topologies The shape of the cabling layout used to link devices is called the physical topology of the network. Logical topology is the way the signals act in the network In BUS topology you have "THE LINEAR BUS" and "THE DISTRIBUTED BUS" IN the LINEAR bus all the nodes of the network are connected to a common transmission medium which has 2 end points where as in the DISTRIBUTED, all the nodes are connected to a common transmission medium which has more than 2 end points.
What is the term network topology mean?
Network topology is the way a computer network is set up and arranged, Examples for possible topologies include ring, star, bus, and line. Each of these topologies have their advantages and disadvantages, with star being the most common in today's world.
What is computer topology?
Computers can be interconnected in different ways to form a network. Such different ways of interconneconnection are called computer topologies. There are 5 topologies. They are: * BUS TOPOLOGY * RING TOPOLOGY * STAR TOPOLOGY * MESH TOPOLOGY * TREE TOPOLOGY
What is network tepologies?
"Network topology" refers to the physical and/or logical layout of the nodes in a computer network. Common network topologies include "bus" (ethernet, a lot of other networking specs) and "ring" (token ring, ATM).
The arrangement of the computers in a network is called the?
Without knowing a bit more about the context, probably "topology".Common network topologies are ring, star, bus and mesh.
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.
What three elements are common to all networks?
Network services, Protocols and Transmission Meida.
What is difference between a logical network and physical?
A physical network is different from a logical network. Logical networks are defined at the Network layer by the arrangement of the hierarchical addressing scheme. Physical networks represent the interconnection of devices on a common media. Sometimes, a physical network is also referred to as a network segment
What is the most common Ethernet frame type used on modern networks?
Ethernet_II Network + Guide to Networks (version 5) pg. 217
