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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.
Provide an abstract superclass called EnergyRecord and subclasses called Contract and Transaction with default constructors (no-arg) and full-arg, overloaded constructors. Collect
What are the umbrella activities of a software process? Software project tracking and control. Risk management. Software Quality Assurance. Formal Technical Reviews.
Explain an error checklist for inspection in detail.
What is software architecture? The software architecture of a program or computing system is the structure or structures of the system, which comprises software methods, the e
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
Describe attributes, properties, and characteristics of system.
What is the benefit of modular design? Changes made during testing and maintenance becomes manageable and they do not influence other modules.
Explain in detail about SCM. Software Configuration Management is an umbrella activity which is used throughout the software process. SCM Activities Identify cha
What is Software failure? Software failure happens when the software does not do what the user wants to see.
I want minimum 100 words
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