COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK TOPOLOGIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If the central switch or server fails, the whole network is down
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Requires a high performance switch or server in the centre as all traffic passes through it.
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Extra hardware such as hubs and switches may be needed
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All 3 of them
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Detailed explanation-1: -Star topologies provide an inherent advantage that a new site can be added with ease; only the central site will have to be updated. In star topology, the central site plays an important role; if it fails, all the connections will go down. Performance of the central hub dictates the performance of the connection.
Detailed explanation-2: -Which of the following is a disadvantage of a star network topology? Requires a high performance switch or server in the centre as all traffic passes through it.
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.