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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 Respiratory quotient? Ans) Respiratory quotient is the ratio among the carbon-dioxide used in photosynthesis to the quantity of oxygen liberated in respiration.
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Level 4 (Managed) Organisation satisfies all the requirements of level-3. At this level quantitative standards are set for software processes andproducts. Project analysis is
System software
Q. How Abstraction used in stepwise refinement? Abstraction:- Abstraction permits one to concentrate on a problem at some level of generalization without regard to irrelevant l
Q. Explain cause effect graphing? Cause-effect graphing is the test case design technique that offers a concise representation of logical conditions and corresponding actions
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#include #include #include void ingresarnotas (float A[120][6], int m, int n) { int i, j; for (i=0; i for (j=0; i { printf ("ingrese
Indexing: The CDS/ISIS package indexes all fields selected for indexing into a single file. This file is known as 'inverted file'. There are indexing techniques for building i
What is the meaning of SCM? Software Configuration Management is termed as a set of actions performed for identifying, organizing and controlling changes throughout the lifecyc
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