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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 SCM? Software Configuration Management is a set of activities carried out for identifying, organizing and controlling alters throughout the lifecycle of computer softwa
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What are the various testing strategies for conventional software? i. Unit testing ii. Validation testing. iii. Integration testing. iv. System testing.
Write the Problems with the CMM. Practices associated with model levels Companies could be using practices from dissimilar levels at the same time but if all practices
What is Up time? "Up time" is the time period when a method is operational and in service. Up time is the sum of idle time and busy time.
Explain Cardinality & Modality ?
Practical process quality Explain process standards such as how reviews should be conducted, configuration management, etc. Monitor the development process to make sure that
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what are the advantages of open source software?
This case study looks at the requirements for an information system to manage the organisation of an international academic conference. An academic conference consists of presenta
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