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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.
"User documentation" is a document that explains the way a software product or system should be used to get the desired results.
Question: (a) (i) Using examples from the case study or otherwise, explain the following concepts: • Encapsulation • Specialization • Polymorphism (ii) Discuss the a
Functions that dynamic testing tools supports: 1: Input setting: selecting of the test data that the test object reads when called. 2: Stub processing : handling output
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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explain ring counter
Advantages of incremental Model:- As product is to be delivered in parts, total cost of the project is dispersed. Limited number of persons can be put on to the projec
Q. Compare and contrast reliability and availability? Ans. Reliability: The probability of failure-free system operation over a specified time in a given environment for a gi
Discuss how your own organization can take advantage of outsourcing its IT systems/functions. In your discussion state what can be outsourced and what benefit will be gained. Do yo
Explain the prototyping approaches in software process. Two approaches i. Evolutionary prototyping - In this approach of system development, the initial prototype is prepare
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