COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK TOPOLOGIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The whole network is affected if the central point fails because no node can communicate
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It is expensive to implement because each device connects directly to every other device in the network
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Data collisions never occur because the devices are connected by a central switch
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Wired networks can be expensive if you need to connect lots of devices
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Detailed explanation-1: -Star topology is more expensive than bus topology because it requires more cables and hubs. However, it is easier to troubleshoot than bus topology because each cable only carries data between two devices (the hub and the attached device).
Detailed explanation-2: -Mesh Topology Each node is connected to every other mode with a direct link. This topology creates a very reliable network, but requires a large amount of cable and is difficult to administer.
Detailed explanation-3: -Network operation depends on the functioning of the central hub. Hence, central hub failure leads to failure of the entire network. Also, the number of nodes that can be added, depends on the capacity of the central hub. The setup cost is quite high.