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Topology

Topology. The physical topology of a network refers to the configuration of cables, computers and other peripherals. The main types of network topologies are: Linear Bus Star Ring Tree or Hybrid. Linear Bus topology.

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Topology

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  1. Topology • The physical topology of a network refers to the configuration of cables, computers and other peripherals. • The main types of network topologies are: • Linear Bus • Star • Ring • Tree or Hybrid

  2. Linear Bus topology • A linear bus topology consists of a main run of cable with a terminator at each end. All servers workstations and peripherals are connected to the linear cable

  3. Star topology • A star network is designed with each node (file server, workstation, peripheral) connected directly to a central network hub or server

  4. Ring topology • A ring network is one where all workstations and other devices are connected in a continuous loop. There is no central server

  5. Tree or hybrid topology • A tree or hybrid topology combines characteristics of linear bus and star and/or ring topologies. • It consists of groups of star-configured workstations connected to a linear bus backbone cable

  6. Network Operating Software • Network operating systems co-ordinate the activities of multiple computers across a network • The two major types of network OS are: • Peer-to-peer • Client/server

  7. Peer to peer network OS • In peer to peer network OS, there is no file server or central management source; all computers are considered equal • Peer to peer networks are design primarily for small to medium LANS • AppleShare and Windows for Workgroups are examples of programs that can function as peer to peer

  8. Client/Server network OS • Client/server network OS centralise functions and applications in one or more dedicated file servers. • The file server provides access to resources and provides security • Novel Netware and Windows NT Server are examples of client/server network operating systems

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