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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.
What is Validation represent? Validation means a set of deeds that ensure that the software that has been built to satisfy the customer requirements.
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Check mail from for assignment. Are you kidding with me. What kind of code you sent. Did you even execute before sending. It has error. Either do it as per the assignment or
The "user guide" is the similar as the user manual. The user guide is a document that shows information essential to employ a system or component to get the desired results. Typica
Q. What is function point? Ans. Function point methods the functionality from the user point of view that is on the basis of what the user request and receives in return. C
Various attributes of cost drivers used in COCOMO model are: 1. Physical attributes: These are concerned with needed characteristics of the software product being developed.
Explain the term - Code Complete - Phase of development where functionality is implemented completely with only bug fixes remaining. - All functions from functional specific
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What is Test Suite - It is a collection of tests that are used to validate the behavior of an application or product. - Generally a test Suite is a high level concept, grou
What is Operational Requirements? Ans) Qualitative and quantitative parameters that states the desired operational capabilities of a system and serve as a basis for determining
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