# Networks - RICHFIELD GRADUATE INSTITUTE OF TECHNOLOGY(PTY...

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RICHFIELD GRADUATE INSTITUTE OF TECHNOLOGY (PTY) LTD FACULTY OF INFORMATION TECHNOLOGY NETWORKS 511 1 ST SEMESTER ASSIGNMENT Name & Surname ICAS No Qualification Semester Module Name Date Submitted ASSESSMENT CRITERIA MARK ALLOCATION EXAMINER MARKS MODERATOR MARKS MARKS FOR CONTENT QUESTION ONE 45 QUESTION TWO 45 TOTAL MARKS 90 MARKS FOR TECHNICAL ASPECTS 1.TABLE OF CONTENTS 2 2.LAYOUT AND SPELLING 3 3.REFERENCE 5 TOTAL MARKS 10 TOTAL MARKS FOR ASSIGNMENT 100 Examiner’s Comments: Moderator’s Comments: Signature of Examiner: Signature of Moderator:

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Question 1 Introduction to Physical and Logical Topologies Topology refers to the placement or direction of where of the devices which could be represented Physically or Logically. Physical topology refers to the interconnected of the cable and other hardware components like the Nodes we see or the hub and server and other peripherals we can see and touch. Logical topology refers to the flow of data throw a network which we cannot physically see or tough, to how the devices on the network appear to be connected together. 1.1 Physical Topology is the layout of the Network devices, where they are actually positioned in the physical world and how the direction the information flows on the network like a map. Types of Different Physical Topologies Star Topology In Star topology, all the components of network are connected to the central device called “hub” which may be a hub, a router or a switch. Here all the workstations are connected to central device with a point-to-point connection. So it can be said that every computer is indirectly connected to every other node by the help of “hub”. All the data on the star topology passes through the central device before reaching the intended destination. Hub acts as a junction to connect different nodes present in Star Network, and at the same time it manages and controls whole of the network. Depending on which central device is used, “hub” can act as repeater or signal booster. Central device can also communicate with other hubs of different network. Unshielded Twisted Pair UTP Ethernet cable is used to connect workstations to central node.
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• Spring '16
• ........., logical topology, Network topology, ring topology

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