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# topology Final Presentation Fardeen N Qasim

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### topology Final Presentation Fardeen N Qasim

1. 1. PREPARED BY M QASIM KHAN STUDENT OF BSCS3 ROL NO 033 FEDERAL URDU SCIENCE UNIVERSITY KARACHI EMAIL- [email_address] CELL NO 092346-3161700 NETWORK TOPOLOGY
2. 2. Department of Computer Science Final Presentation Topic Network Topology
3. 3. GROUP MEMBERS QASIM KHAN (32) AHMED FARDEEN(01) MUHAMMAD FAIZAN (21) ZAID-UR-REHMAN (49)
4. 4. QASIM KHAN (32)
5. 5. At the end of this lesson, student should be able to achieve all the three objective below:- OBJECTIVE At the end of presentation, student will be able to achieve all the three objective below:- Explain meaning of network topology with correctly. State five types of network topologies Correctly with advantage and disadvantage. Differentiate correctly between the five types of network topology. QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN
6. 6. CONTENT Definition of Network Topology Types of Network Topology Differentiation Between the Types of Network Topology QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN
7. 7. DEFINITION What is a Topology ? Topology is a Branch of Mathematic in which we study about the arrangement of element. In term of Computer networking “ The structure, consisting of paths and switches, that provides the communication interconnections among nodes of a network” QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN
8. 8. TYPES OF NETWORK TOPOLOGY Types of Topology PHUSICAL TOPOLOGY LOGICAL TOPOLOGY PHYSICAL TOPOLOGY:- “ THE PHYSICAL TOPOLOGY OF A NETWORK REFERS TO THE LAYOUT OF CABLES, COMPUTERS AND OTHER PERIPHERALS ” . LOGICAL TOPOLOGY:- “ LOGICAL TOPOLOGY IS THE METHOD USED TO PASS THE INFORMATION BETWEEN THE COMPUTERS” QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN
9. 9. TYPES OF PHYSICAL NETWORK TOPOLOGY Three commonly used network topologies are:- Ring network. Star network. Tree network. Bus network. QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN Mesh network.
10. 10. RING TOPOLOGY <ul><ul><li>Cable forms closed ring or loop, with all computers and devices arranged along ring. </li></ul></ul><ul><ul><li>Data travels from device to device around entire ring, in one direction. </li></ul></ul><ul><ul><li>Primarily is used for LANs, but also is used in WANs. </li></ul></ul>QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN
11. 11. RING TOPOLOGY QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN
12. 12. ADVANTAGES AND DISADVANTAGES OF RING TOPOLOGY RING QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN 2) If any of the nodes fail then the ring is broken and data cannot be transmitted successfully. 2) The transmission of data is relatively simple as packets travel in one direction only. <ul><li>Data packets must pass </li></ul><ul><li>through every computer between </li></ul><ul><li>the sender and recipient therefore, </li></ul><ul><li>this makes it slower. </li></ul>1) No terminator required. DISADVANTAGES ADVANTAGES
13. 13. SUMMARY QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN RING TOPOLOGY <ul><li>DEFINITION </li></ul><ul><li>Cable forms closed ring or loop, with all computers and devices arranged along ring. </li></ul><ul><li>ADVANTAGE </li></ul><ul><li>Data is quickly transferred without a ‘bottle neck’. </li></ul><ul><li>The transmission of data is relatively </li></ul><ul><li>simple as packets travel in one direction only. </li></ul><ul><li>DISADVANTAGE </li></ul><ul><li>Data packets must pass through every computer </li></ul><ul><li>between the sender and recipient therefore, this makes it slower. </li></ul><ul><li>If any of the nodes fail then the ring is broken and data cannot be transmitted successfully. </li></ul><ul><li>It is difficult to troubleshoot </li></ul><ul><li>the ring. </li></ul>
14. 14. In a tree network all computers are connected in a hierarchal fashion. Require data flow through the branches. A tree topology combines characteristics of linear bus and star topology. TREE TOPOLOGY QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN
15. 15. TREE TOPOLOGY QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN
16. 16. ADVENTAGES AND DISADVENTAGES OF TREE TOPOLOGY TREE QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN 2) If the backbone line breaks, the entire segment goes down. 2) Functional grouping can be created. <ul><li>Overall length of each </li></ul><ul><li>segment is limited by the type of </li></ul><ul><li>cabling used </li></ul>1) Point-to-point wiring for individual segments 3) More difficult to configure and wire than other topologies. DISADVANTAGES ADVANTAGES
17. 17. SUMMARY QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN TREE TOPOLOGY <ul><li>DEFINITION </li></ul><ul><li>In a Tree network all computers are connected in a hierarchal fashion. </li></ul><ul><li>ADVANTAGE </li></ul><ul><li>Point-to-point wiring for individual segments. </li></ul>Functional grouping can be created. . <ul><li>DISADVANTAGE </li></ul><ul><li>Overall length of each segment is limited by the type of cabling used. </li></ul><ul><li>If the backbone line breaks, the entire segment goes down. </li></ul>More difficult to configure and wire than other topologies.
18. 18. AHMED FARDEEN (01)
19. 19. STAR TOPOLOGY <ul><ul><li>All devices connect to a </li></ul></ul><ul><ul><li>central device, called </li></ul></ul><ul><ul><li>Hub or Switch . </li></ul></ul><ul><ul><li>All data transferred </li></ul></ul><ul><ul><li>from one computer to </li></ul></ul><ul><ul><li>another passes through </li></ul></ul><ul><ul><li>hub. </li></ul></ul>QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN
20. 20. STAR TOPOLOGY QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN
21. 21. STAR TOPOLOGY QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN
22. 22. ADVANTAGES AND DISADVANTAGES OF STAR TOPOLOGY STAR QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN 2) Failure of the switch or hub can disable the entire network. 2) Security can be implemented in the hub/switch. 1) Requires more cable length than a ring or bus topology. 1) Easy to install and wire. 3) More expensive than linear bus topologies because of the cost of the concentrators. 3) Easy to detect faults and to remove parts. DISADVANTAGES ADVANTAGES
23. 23. SUMMARY QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN <ul><li>DEFINITION </li></ul><ul><li>All devices connect to a central device, called hub. </li></ul><ul><li>ADVANTAGE </li></ul><ul><li>Easy to install and wire. </li></ul><ul><li>Security can be implemented </li></ul><ul><li>in the hub/switch. </li></ul><ul><li>DISADVANTAGE </li></ul><ul><li>Requires more cable length </li></ul><ul><li>than a linear topology. </li></ul>If the hub or concentrator fails, nodes attached are disabled. More expensive than linear bus topologies because of the cost of the concentrators. STAR TOPOLOGY <ul><li>Easy to detect faults and to </li></ul><ul><li>remove parts </li></ul>
24. 24. QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN The Internet is a series of interconnected networks. Personal computers and workstations are connected to a Local Area Network ( LAN ) by either a dial-up connection through a modem and standard phone line or by being directly wired into the LAN. INTERNET TOPOLOGY
25. 25. <ul><li>Other modes of data </li></ul><ul><li>transmission that allow </li></ul><ul><li>for connection to a network </li></ul><ul><li>include T-1 </li></ul><ul><li>connections and dedicated </li></ul><ul><li>lines. </li></ul><ul><li>Bridges and hubs link </li></ul><ul><li>multiple networks </li></ul><ul><li>to each other. Routers </li></ul><ul><li>transmit data through </li></ul><ul><li>networks and determine the </li></ul><ul><li>best path </li></ul><ul><li>of transmission. </li></ul>INTERNET TOPOLOGY QASIM KHAN ZAID-UR-REHMAN MUHAMMAD FAIZAN AHMED FARDEEN