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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 cardinality in data modelling? Cardinality in data modeling, cardinality verifies how the number of occurrences of one object is related to the number of occurrences of
Hybrid design: Pure top-down or pure bottom up approaches are often not practical thus hybrid approach which combines the above two approaches is often used.
why are older data models are being replaced by new data models
State about the Normal data- Test data - This is data which is valid/acceptable and has expected outcomes (for instance, if a date is being input the day must be in the rang
The inability of a system or system component to perform a needed function within specified limits.
Question 1 Explain Iterative Development Model in detail Question 2 What is statistical testing? What are the steps involved in statistical Testing Question 3 Explain wh
Define the Level 1 of maturity model At this maturitylevel,software is developed an ad hoc basis and nonstrategic technique is used for its development. Success of developed s
Give explanation about the incremental model. - Have same phases as the waterfall model. - Phases are as follows: Analysis. Code. Design. Test. Incre
Describe the functional requirement for a Library management system ?
Define measure and metrics. Measure is a quantitative indication of the extent, dimension, amount or size of some attribute of a product or process. Metrics is termed as th
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