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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.
Level 5 (Optimising) Organisation satisfies all the requirements of level-4. This is final level. Organisation at this maturity level is considered almost perfect. At this st
Different type of testing tools. (a) Test Case Generators: (b) Capture/ Playback and Test harness tools: (c) Coverage Analysis Tools: (d) Test Comparators e) Memor
The Clue-Less system shall be available to all users on the Internet 95% of the time between 5:00pm and midnight local time and 90% of the time between midnight and 5:00pm local ti
What transform mapping refers? The transform mapping is a bundle of design steps applied on the DFD in order to map the transformed flow characteristics into specific architect
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Which is not the purpose of full annealing Produces hardest material.
an isolated metal sphere has a radius r. when charged to a potential v, the charge on sphere is q. 1- state an expression, in terms of r and q, for potential v of sphere.
Q. Advantage of software life cycle model? The advantage of this model is the wide range of options to accommodate the good features of outer life cycle models. It becomes equi
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