network topology

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Compone group 5 “NETWORK TOPOLOGY”

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..Main Menu.. OBJECTIVE CONTENT EXERCISE SUMMARY EXIT

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Objective Explain meaning of network topology with correctly. State three types of network topologies correctly. Differentiate correctly between the three types of network topology.

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Objective What is a Topology ? The physical topology of a network refers to the configuration of cables, computers and other peripherals.

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TYPES OF NETWORK TOPOLOGY Three commonly used network topologies are:- Bus network. Ring network. Star network.

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BUS TOPOLOGY All computers and devices connected to central cable or bus. Consists of a main run of cable with a terminator at each end. Popular on LANs because they are inexpensive and easy to install.

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BUS TOPOLOGY

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RING TOPOLOGY Cable forms closed ring or loop, with all computers and devices arranged along ring. Data travels from device to device around entire ring, in one direction. Primarily is used for LANs, but also is used in WANs.

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RING TOPOLOGY

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STAR TOPOLOGY

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STAR TOPOLOGY All devices connect to a central device, called hub .

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STAR TOPOLOGY All devices connect to a central device, called hub. All data transferred from one computer to another passes through hub. MAIN MENU SUMMARY EXIT EXERCISE OBJECTIVE

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STAR TOPOLOGY MAIN MENU SUMMARY EXIT EXERCISE OBJECTIVE

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STAR TOPOLOGY MAIN MENU SUMMARY EXIT EXERCISE OBJECTIVE

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DIFFERENTIATION BETWEEN THE THREE TYPES OF NETWORK TOPOLOGY MAIN MENU SUMMARY EXIT EXERCISE OBJECTIVE WHAT IS DIFFERENTIATION BETWEEN THE THREE OF NETWORK TOPOLOGY? SEARCH IN THE INTERNET

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DIFFERENTIATION BETWEEN THE THREE TYPES OF NETWORK TOPOLOGY MAIN MENU SUMMARY EXIT EXERCISE OBJECTIVE http://en.wikipedia.org/wiki/Network_topology http://home.att.net/~charlie.net/cMctopology.htm

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DIFFERENTIATION BETWEEN THE THREE TYPES OF NETWORK TOPOLOGY MAIN MENU SUMMARY EXIT EXERCISE OBJECTIVE ADVANTAGE DISADVANTAGE 1) Easy to connect computer or peripheral to a linear bus. 1) Entire network shuts down if there is a break in the main cable. 2) Requires less cable length than a star topology. 2) Terminators are required at both ends of the backbone cable. 3) Difficult to identify the problem if the entire network shuts down. BUS

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DIFFERENTIATION BETWEEN THE THREE TYPES OF NETWORK TOPOLOGY MAIN MENU SUMMARY EXIT EXERCISE OBJECTIVE ADVANTAGE DISADVANTAGE 1) Data is quickly transferred without a ‘bottle neck’. Data packets must pass through every computer between the sender and recipient therefore, this makes it slower. 2) The transmission of data is relatively simple as packets travel in one direction only. 2) If any of the nodes fail then the ring is broken and data cannot be transmitted successfully. 3) It is difficult to troubleshoot the ring. RING

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DIFFERENTIATION BETWEEN THE THREE TYPES OF NETWORK TOPOLOGY MAIN MENU SUMMARY EXIT EXERCISE OBJECTIVE ADVANTAGE DISADVANTAGE 1) Easy to install and wire. 1) Requires more cable length than a linear topology. 2) Security can be implemented in the hub/switch. 2) If the hub or concentrator fails, nodes attached are disabled. 3) Easy to detect faults and to remove parts. 3) More expensive than linear bus topologies because of the cost of the concentrators. STAR

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EXERCISE MAIN MENU SUMMARY EXIT CONTENT OBJECTIVE 1) Which of the following statements describe about network topology correctly ? A . Devices attached or detached at any point on the network. B . The failure of device on the network. C . Refers to the configuration of cables, computers and other peripherals. D . All of the above.

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EXERCISE MAIN MENU SUMMARY EXIT CONTENT OBJECTIVE On a __________, all of the computers and devices (nodes) on the network connect to a central device. A . Bus network. B . Ring network. C . Star network. D . All of above.

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EXERCISE MAIN MENU SUMMARY EXIT CONTENT OBJECTIVE On a star network, the central device that provides a common connection point for nodes on the network is called the __________. A . Hub. B . Personal computer. C . Printer. D . File server.

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EXERCISE MAIN MENU SUMMARY EXIT CONTENT OBJECTIVE 4) On a bus network, such as that illustrated in the accompanying figure, if one node fails ________. A . Only that node is affected. B . Only the nodes before that node are affected. C . Only the nodes after that node are affected. D . All the nodes are affected.

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EXERCISE MAIN MENU SUMMARY EXIT CONTENT OBJECTIVE The transmission of data is relatively simple as packets travel in one direction only . 5) The statement above is correctly refer to the ______. A . Bus network. B . Ring network. C . Star network. D . All of the above.

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EXERCISE MAIN MENU SUMMARY EXIT CONTENT OBJECTIVE 6) All the statements true about ring topology except A . Data is quickly transferred without a ‘bottle neck’. B . The transmission of data is relatively simple as packets travel in one direction only. C . If any of the nodes fail then the ring is broken and data cannot be transmitted successfully. D . Security can be implemented in the hub/switch.

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EXERCISE MAIN MENU SUMMARY EXIT CONTENT OBJECTIVE 7) The statement true about star topology is A . Difficult to identify the problem if the entire network shuts down. B . Terminators are required at both ends of the backbone cable. C . The transmission of data is relatively simple as packets travel in one direction only. D . Easy to detect faults and to remove parts.

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ANSWER MAIN MENU SUMMARY EXIT CONTENT OBJECTIVE YOU ANSWER IS WRONG, TRY AGAIN !!! SORRY!! QUESTION 1 QUESTION 2 QUESTION 3 QUESTION 4 QUESTION 5 QUESTION 6 QUESTION 7

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ANSWER WELL DONE YOU ANSWER IS CORRECT !!! QUESTION 1 QUESTION 2 QUESTION 3 QUESTION 4 QUESTION 5 QUESTION 6 QUESTION 7 MAIN MENU SUMMARY EXIT CONTENT OBJECTIVE

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SUMMARY MAIN MENU EXERCISE EXIT CONTENT OBJECTIVE BUS TOPOLOGY DEFINITION All computers and devices connected to central cable ADVANTAGE Easy to connect a computer or peripheral to a linear bus. Requires less cable length than a star topology. DISADVANTAGE Entire network shuts down if there is a break in the main cable. Terminators are required at both ends of the backbone cable. Difficult to identify the problem if the entire network shuts down.

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SUMMARY RING TOPOLOGY DEFINITION Cable forms closed ring or loop, with all computers and devices arranged along ring. ADVANTAGE Data is quickly transferred without a ‘bottle neck’. The transmission of data is relatively simple as packets travel in one direction only. DISADVANTAGE Data packets must pass through every computer between the sender and recipient therefore, this makes it slower. If any of the nodes fail then the ring is broken and data cannot be transmitted successfully. It is difficult to troubleshoot the ring. MAIN MENU EXERCISE EXIT CONTENT OBJECTIVE

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SUMMARY DEFINITION All devices connect to a central device, called hub. ADVANTAGE Easy to install and wire. Security can be implemented in the hub/switch. DISADVANTAGE Requires more cable length than a linear topology. 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 Easy to detect faults and to remove parts MAIN MENU EXERCISE EXIT CONTENT OBJECTIVE

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ARE YOU SURE TO EXIT ? YES NO

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