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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.
Explain the Test Specification and Test Suite: - This is a document verifying the test approach for a software feature or combination or features and the inputs, predicted resu
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Determine the Level 4 of key process areas Level 4 KPAs: 1) Quantitative Process Management (QP): It states quantitative standards for software process. 2)
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What do you mean by the computer based system? The computer based system can be termed as "a set or an arrangement of elements that are managed to accomplish some predefined g
What is meant by software change? Software change is termed as the change in nature of software as the requirements of software changes.
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