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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.
Write the Importance of standards. Encapsulation of best practice- avoids repetition of past mistakes. They are a framework for quality assurance processes - they include ch
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Define the Behavioural Model It defines operational behaviour of the system. In this model, numerous operations of the system are represented in pictorial form. Tools used to
Q. A supermarket requires to develop software to encourage regular customers. For this the customer requires to supply his name address telephone number and driving license number.
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Explain the term- Phased In this approach only part of the new system is introduced and only when it proves to work satisfactorily is the next part introduced and so on, unti
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I want to make assignements regarding software engineering.
Discuss in details about Integration testing. It is a systematic procedure to construct the program structure. Incremental integration - The program is built and tested i
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