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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 Test phase? Ans) The time period in the software life cycle in which the parts of a software product are evaluated and integrated, and the software product is evaluated
Testing conducted to evaluate whether systems or components pass data and control correctly to one another. Contrast with testing, unit; testing, system. Normal 0
developer
Q. For the program given below, calculate the values of software science measures like ? , N, V, E and λ . int. sort (int x[], int n) { int i, j, save, im1; /
Iterative Enhancement Model This model was developed to remove disadvantages of waterfall model. In this model, phases of software development remain the same however the cons
Write a program and identify DU path for Telecom domain
Q. Differentiate between functional testing and structural testing. Ans: Functional testing signifies behavioural testing or Black box testing. In this techniques the teste
vi curve
Enginnering the product Because of complexity involved in software development, engineering approach is being used in software design. Use of engineering approach in area of re
What is meant by Information flow Continuity? When we refine a fundamental model for a system, the information flow continuity must be maintained .ie, input & output to every r
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