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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.
Writing a report explaining all the work in detail in a professional manner and the report should include all the steps below: 1. Draw up a final Entity-Relationship model compr
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What is Requirements Definition Description Output of requirements of engineering process is Requirements Definition Description (RDD). Requirements engineering can be defined
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How does the risk factor affect the spiral model of software development? Ans: Risk Analysis phase is the most significant part of "Spiral Model". In this phase all possible (a
How is software design different from coding ? Points of difference among software design and coding can be laid down as under: Design : 1. Design is most vital and t
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