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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.
I need the code for creating a simple ball game on net beans/Open gl
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Functional testing is black-box type of testing geared to functional needs of an application. Test engineers *should* do functional testing.
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Software Engineering 1. Give the two roles of the software process. 2. Describe software maintenance and it types. 3. What is RAD model and its phases? 4. What do you
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