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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 definition of state transition diagram? State transition diagram is mainly a collection of states and events. Due to the events the system has to change its state. It als
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what is halstead software science measures
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Q. What is requirement elicitation methods? Subsequent to receiving the problem statement from the customer the first step is to arrange a meeting with the customer. During the
Explain the difference between Latent and Masked Defect. Latent Defect is one which has been in the system for a long time; but is discovered now. I.e. A defect which has been
Explain incremental model? The incremental model is proposed by D.L PARNAS. It is basically executed by combining elements of linear sequential model and iterative prototyping
Define software testing? Software testing is a critical element of software quality assurance and shows the ultimate review of specification, design, and coding.
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Devise an architecture for a system that manages the daily operation of a motor vehicle service and repair business. The system will have the following functionality:- Administrati
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