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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.
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Explain Static analysis? Ans) (1) Analysis of a program that is performed without implementing the program. (2)The process of assessing a system or component based on its for
Define the Prototyping Model In this model, a working model of actual software is developed originally. Prototype is just like a sample software having low reliability and les
What is the meaning of Software? Software is termed as a set of computer programs that are related documents that are indented to provide required features, functionalities and
Throw-away prototyping Objective: The principal objective of this model is to validate or to derive the system requirements. It is developed to reduce requir
Define software scope. The first software project management activity is the determination of software scope. Scope is explained answering the following questions. Context:
How to interpret software metrics(any metrics)...i need an example
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What are the Related data items Related data items captures details of related attributes. Range of values store total possible values of that data. Data structure definition c
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