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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.
explain the goal oriented requirement elicitation process with a neat sketch
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You need to test a system though there is no documentation available and developers who developed it don't work there anymore. What would you do? - We will perform exploratory
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What is the use of Architectural design? The Architectural design defines the relationship between major structural elements of the software, the "design patterns" that may be
Evolutionary Prototype In this, prototype is constructed to learn about software problems and their solutions in successive steps. Prototype is initially developed to satisf
Define Verification ?
what is behavioral modelling?
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