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QUESTION - Fault Tolerance
(a) Three computers together provide a replicated service. The manufacturers claim that each computer has a mean time between failure of five days; a failure typically takes four hours to fix. What is the availability of the replicated service?
(b) In the gossip architecture, why does a replica manager need to keep both a ‘replica' timestamp and a ‘value' timestamp?
(c) Explain the difference between linearizability and sequential consistency, and why the latter is more practical to implement, in general.
(d) Explain why allowing backups to process read operations leads to sequentially consistent rather than linearizable executions in a passive replication system.
Question: (a) The relationship between organisations and information technology is a complex one, and is made up of a number of mediating factors which must be considered prior
State the Advantages of Prototyping Advantages of prototyping outperform problems of prototyping. Hence overall, it's a beneficial approach to develop prototype. End user can'
we got the code for mobile app we need a document for that
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Construct an E-R Diagram for the application described on the next page. Include any additional assumptions you made about the application requirements. The assumptions may not dir
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