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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.
Write the steps followed in testing? i. Unit testing - The individual components are tested in this type of testing. ii. Module testing - Related collection of independent c
Write down the functional requirement for an Library management system. The user should able to search either all of the initial set of databases or select a subset of datab
What is meant by Throw away Prototyping? Giving the user a system which is incomplete and then changing and augmenting it as the user requires become clear. The objective
What are the benefits of modular design? Changes made during testing and maintenance becomes manageable and they do not affect other modules.
Q.Illustrate Intermediate COCOMO model ? The intermediate COCOMO model approximation the software development effort by using 15 cost drivers' variables besides the size variab
Q. Who is a stake holder for a software project? [Stake holder :- something or somebody with direct interest: a group or person with a direct interest, investment or involvem
Software
Determine the Higher order programming languages Higher order programming languages such as COBOL and PASCAL came into existence. Use of these made programming much easier. In
Write the Process classification. Informal No detailed process model. Development team chose their own way of working. Managed Explained process model wh
QUESTION - Time Synchronization (a) Why is computer clock synchronization of paramount importance? Give 2 business scenarios whereby time accuracy is critical? (b) Computers
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