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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.
Define capability. What are the quantities that determine the degree of capability of a software reliability model? Capability refers to the ability of the model to calculate w
What is software selection?
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After studying the module you should understand the principles and techniques associated with modular software development. After studying the module you should understand the c
Define Software design. Software design is an iterative process by requirements are translated into a "blue print" for constructing the software. The blue print dep
Iterative Enhancement Model Iterative Enhancement Model: This model has the similar phases as the waterfall model, but with fewer restrictions. Normally the phases happen in th
Q. Illustrate the Features of function count? Features:- Function point goes forward is independent of the language tools or methodologies used for implementation.
How do we zero down on automation tools for regression testing? Below criteria are used when zeroing down on automation tools for regression testing: - Risk analysis such as
What does it mean by business process engineering tools ?
What is A user manual? Ans) A "user manual" is a document that presents information essential to employ software or a system to get the desired results. Typically, what is expla
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