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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 Customer (end user)? Ans) The organization or individual, internal or external to the producing organization that takes the product.
a simple text processing program with all essential functions (open and save text documents, insert and delete text, search for words). We assume that text read from a file is stor
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What is the black box?
What does Level0 DFD means? Level0 DFD is called as 'fundamental system model' or 'context model'. In the context model the total software system is represented by a single bub
What is statement coverage? Statement coverage is the testing to test each statement in the code has been executed at least once.
List four reasons why it is difficult to improve software process. It is difficult to improve software process due to following reasons: 1. Lack of knowledge 2. Not eno
Explain Software Bug? Ans) A fault in a program which origins the program to perform in an unintended or unanticipated manner.
#questionFrame Diagrams We discussed the importance of framing a problem in order to understand the problem better and be able to develop a solution more quickly and easily. In thi
explain software document.create the necessary documents for employee management system.
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