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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.
What is Verification represent? Verification represents the set of actions that are performed to confirm that the software correctly implements the particular functionality.
Describe how to perform Risk Analysis during software testing. Whereas a test plan is being formed, risks involved in testing the product are to be taken into consideration al
Explain Big-Bang Strategy? Ans) Big-Bang approach is very easy in its philosophy where basically all the modules or builds are constructed and tested independently of each other
Define capability. What are the quantities that determine the degree of capability of a software reliability model? Capability refers to the ability of the model to calculate w
What are the benefits of prototyping? i. Prototype uses as a basis for deriving system specification. ii. Design quality can be better. iii. System can be handled efficie
What is Customer (end user)? Ans) The organization or individual, internal or external to the producing organization that takes the product.
Please let me know that through which techniques software quality assurance is planned?
What are the objectives of testing? i. Testing is a process of implementing a program with the intend of finding an error. ii. A good test case is one that has high probabi
Problem solving is a critical skill for success in business—in fact it’s often what you are hired and paid to do. This article explains the five problem solving steps and provides
what is meant by phosphate conditiong
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