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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.
Software configuration management is an umbrella activity which is applied by the software procedure. SCM identifies controls, audits and reports modifications that invariably occ
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Why testing is vital with respect to software?
Define software measurement. A software measurement is a method or method that applies software calculates to a class of software engineering objects to attain a predefined goa
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explain the data dictionery
Clear box testing is the similar as white box testing. It is a testing approach that consider the application's program structure, and acquires test cases from the application's pr
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