Networking and Telecom Management
Ques. 1. (a) Give an Advantage/Disadvantage for each type of Network Topology?
Ans. Network Topology- The term Computer network topology defines the geographic arrangement of computer networking devices. It describes the actual layout of the Computer Network hardware. Given the location of workstations and peripherals, the goal of topology is to find the most economical and efficient way to connect all the users to the computer network resources while providing adequate capacity to handle user demands, maintain system reliability and minimize delay.
The selection of a Network Topology for a network can not be done in isolation as it affects the choice of media and the access method used. Because it determines the strategy used in wiring a building for a network and deserves some careful study.
Basic Network Topology
The three simple LAN Network Topology that are combined to form any practical topology are known as basic LAN Network Topology. They are, Bus Topology, Ring Topology and Star Topology.
1. Bus Network Topology.
The physical Bus Network Topology is the simplest and most widely used of the network designs. It consists of one continuous length of cable (trunk) and a terminating resistor (terminator) at each end. Data communication message travels along the bus in both directions until it is picked up by a workstation or server NIC. If the message is missed or not recognized, it reaches the end of the cabling and dissipates at the terminator. Bus Network Topology requires a multipoint connection.
All nodes on the bus topology have equal access to the trunk. This is accomplished using short drop cables or direct T-connectors. The number of devices and the length of the trunk can be easily expanded.
Advantages of bus Network Topology
The advantages of physical bus topology are:
a. It uses established standards and it is relatively easy to install.
b. It requires less media than other topologies.
Disadvantages of Bus Network Topology
Ans. Network Topology- The term Computer network topology defines the geographic arrangement of computer networking devices. It describes the actual layout of the Computer Network hardware. Given the location of workstations and peripherals, the goal of topology is to find the most economical and efficient way to connect all the users to the computer network resources while providing adequate capacity to handle user demands, maintain system reliability and minimize delay.
The selection of a Network Topology for a network can not be done in isolation as it affects the choice of media and the access method used. Because it determines the strategy used in wiring a building for a network and deserves some careful study.
Basic Network Topology
The three simple LAN Network Topology that are combined to form any practical topology are known as basic LAN Network Topology. They are, Bus Topology, Ring Topology and Star Topology.
1. Bus Network Topology.
The physical Bus Network Topology is the simplest and most widely used of the network designs. It consists of one continuous length of cable (trunk) and a terminating resistor (terminator) at each end. Data communication message travels along the bus in both directions until it is picked up by a workstation or server NIC. If the message is missed or not recognized, it reaches the end of the cabling and dissipates at the terminator. Bus Network Topology requires a multipoint connection.
All nodes on the bus topology have equal access to the trunk. This is accomplished using short drop cables or direct T-connectors. The number of devices and the length of the trunk can be easily expanded.
Advantages of bus Network Topology
The advantages of physical bus topology are:
a. It uses established standards and it is relatively easy to install.
b. It requires less media than other topologies.
Disadvantages of Bus Network Topology