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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.
Define software prototyping. Software prototyping is explained as a rapid software development for validating the requirements.
List the process maturity levels in SEIs CMM. Level 1: Initial - Few processes are explained and individual efforts are taken. Level 2:Repeatable - To track cost schedule an
Regression test cases which a program has previously implemented correctly in order to detect errors spawned by changes or corrections done during software development and maintena
Top down design: A top down design approach begins by identifying the main modules of the system, decomposing them into their lower level modules and iterating unless the desired
how to make script file volume of pyramid
How will you view GUI maps in Winrunner? - GUI maps are viewed by using GUI Map Editor - It's located in Tools menu within WinRunner. - It displays all of the GUI Map fil
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what is the purpose of equivalence partitioning?
Question: (a) Differentiate between application software and system software. (b) Mr. Smith would like to know which type of computer is more appropriate to process the inf
Give a complete example that how to tackle with it.
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