Give two advantages and two disadvantages of decentralized and semi- centralized peer-to-peer architectures.
What will be an ideal response?
Advantages of decentralized p2p architectures:
Less vulnerable to denial of service attack
Scaleable – system performance should not be adversely affected by adding
peers.
Disadvantages of decentralized p2p architectures:
Peer communications more difficult to organize.
More expensive to discover what peers are available on the network.
Advantages of semi-centralised p2p architectures:
Easy to keep track of what peers are available.
Peer data exchange is simplified – it takes place via the server.
Disadvantages of semi-centralised p2p architectures:
Failure of server results in system unavailability.
Vulnerable to denial of service attack on server
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