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Network topology And Its type

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Network topology And Its type in detail

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Network topology And Its type

  1. 1.  Physical topology refers to the placement of the network's various components, including device location and cable installation, while logical topology shows how data flows within a network, regardless of its physical design
  2. 2. Bus Topology Star Topology Ring Topology Tree Topology Mesh Topology
  3. 3.  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
  4. 4.  Advantages –  Easy to install and use.  Cables are less used then star or ring topology.  Disadvantages-  Disorder in any node may lead to failure of entire data transmission.  It is difficult to add a new node to the structure.
  5. 5.  A star network is designed with each node (file server, workstation, peripheral) connected directly to a central network hub or server.
  6. 6.  Advantages –  An advantage of the star topology is the simplicity of adding additional nodes.  Good option for modern networks  Low startup costs  Easy to manage  Disadvantages-  Hub is a single point of failure  Requires more cable than the bus
  7. 7.  A ring network is one where all workstations and other devices are connected in a continuous loop. There is no central server. A network topology that is set up in a circular fashion in which data travels around the ring in one direction and each device on the ring acts as a repeater to keep the signal strong as it travels
  8. 8.  Advantages-  Easier to manage; easier to locate a defective node or cable problem  Handles high-volume network traffic  Enables reliable communication  Disadvantage-  Expensive  Requires more cable and network equipment at the start
  9. 9.  This particular type of network topology is based on a hierarchy of nodes. The highest level of any tree network consists of a single, 'root' node, this node connected either a single (or, more commonly, multiple) node(s) in the level below by (a) point-to-point link(s)
  10. 10.  Advantages –  It is scalable. Secondary nodes allow more devices to be connected to a central node.  Point to point connection of devices.  Having different levels of the network makes it more manageable hence easier fault identification and isolation.  Disadvantages-  Maintenance of the network may be an issue when the network spans a great area.  Since it is a variation of bus topology, if the backbone fails, the entire network is crippled.
  11. 11.  It is also known as graph topology. In this topology each node is connected in another node “Directly". So there is a mesh in the network as there are so many wires that are connected to each and every node.  Fully Connected- A fully connected network is a communication network in which each of the nodes is connected to each other. A fully connected network doesn't need to use switching nor broadcasting.  Partially Connected- The type of network topology in which some of the nodes of the network are connected to more than one other node in the network with a point-to- point link.
  12. 12.  Physical topology have _____ no. of topologies?  (a)Five (b)Two  Ans. (a)Five  In case of failure of one node in ring topology the whole system crashes  (a)True (b)False  Ans. (b)False  If hub fails then whole network fails.  a)True (b)False  Ans. (a)True
  13. 13.  Mesh topology is of _______ types.  (a)three (b)two  Ans. (b)two  Bus topology is _____________  (a)Expensive (b)cheap  Ans. (b)Cheap  _______ topology require more cable than Bus topology  (a)Star (b)Ring  Ans. (a)Star
  14. 14.  In ______topology each node is connected to a single cable?  (a)Bus (b)Ring  Ans.(a)Bus  Token passing is used in ________ topology?  (a)Star (b)Ring  Ans.(b)Ring  Topology is divide in _____ types in accordance with the transmission method  (a)three (b)two  Ans. (b)two
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