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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.
Importance of function point: This is independent of the languages tools, or methodology used for execution. They can be estimated from requirement specification or desig
What does Modularity concept mean? Software architecture embodies modularity; ie, Software is named in to addressable components called as modules that are integrated finally.
What are the various testing activities? i. Test planning ii. Test execution iii. Test case design iv. Data collection v. Effective evaluation
Give the example of the mechanics of structured analysis
What are the elements of Computer based Systems? Software: Data structures, Computer programs, & related document Hardware: Electronic devices, inter connectivity devices, E
Throw-Away Prototyping: Also known as close ended prototyping. Throwaway or Rapid Prototyping refers to the formation of a model that will eventually be discarded rather than beco
Discuss in details the design principles. The design process is free from tunnel vision. The design should be observable to the analysis model. Design should not reinv
Introduction Energy consumer in the computer system is getting critical all around the globe now. Therefore, the ability to figure out the components that consume energy in sys
What is Boundary value Analysis? Boundary value analysis is a method in software testing where tests are designed for showing boundary values. The values will be on the edge of
Products, services, or information required from suppliers to make a process work.
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