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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.
Discuss the limitations of software testing. How do we say that complete testing is impossible?.
what is behavioral modelling?
Q. What is Standard enforces? Standard enforces This tool is like a code inspector; expect that the rules are generally simpler. The main distribution is that a full-blown
Differentiate between smoke testing and sanity testing. -Smoke testing verifies all areas of application; sanity testing recognizes one or few areas only. -Smoke testing is
Explain in detail about data modelling. Data modeling makes use of the ERD. Having of 3 interrelated information. The data object. Attributes. Relationsh
what resources are used when a thread is created ?
This assignment aims to provide the opportunity to integrate and develop your analytical and written communication skills, and speci?cally to:develop your skills at developing test
Explain the Per-action modeof QTP - Best used in below cases: - When creating simple record and run tests when there is just one or very few tests which correspond to int
What are the various testing activities? i. Test planning ii. Test case design iii. Data collection iv. Test execution v. Effective evaluation
What do you understand by "Software Quality"? Quality software means, it's: - Free of bugs - Is easily maintainable - Within the budget - Meets requirements - De
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