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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.
Objectives of Data dictionaries:- 1) A standard definition of every terms in a system that is each item of data is uniquely identified and defined. 2) Simple cross-referenci
What is Random Testing? This is one of process used to exercise a class. It is based on developing a random test series that tries the minimum number of operations typical to th
State the term- Code Coverage This is an analysis method that determines which parts of software have already been covered by test case suite and which are remaining.
select alife cycle model that you would follow during the devolpment of the easy travil singapore system. give an outline description of thise life cycle and justify your chice of
What is continuous CMMI MODEL? This is a finer-grain model that considers individual or groups of practices and assesses their use. The maturity assessment is not a one valu
Justify the term "Software is engineered"?
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
structured analysis
1. Answer the following questions for the method search() below: public static int search (List list, Object element) // Effects: if list or element is null throw NullPointerExcept
What are the characteristics of Software Software is engineered or formed; it is not manufactured in the classical sense. Software doesn't wear out. Although the indu
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