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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.
Q. Software project planning necessitate what activities? What are the difficulties encountered in measuring the Software Costs? Ans. Software project planning necessitate th
Hello I want to know the actual difference b/w information technology & computer science & engineering ? Thanks
User documentation consist descriptions of the functions of a system without reference to how these functions are implemented. Instances are installation guide and reference guide.
Q. Illustrate about System Testing? System Testing: This testing centred on validating the product with respect to software specification Document. Techniques as function testi
Q. What do you mean by Software Engineering? What is the use of Software Engineering? Ans) Software engineering is engineering for software development. A simple program can be
Define the computer based system. The computer based system can be explained as "a set or an arrangement of elements that are organized to accomplish some predefined goal by pr
Features of Cds - isis software: Main Features The main features of CDS/ISIS software may briefly be summarised as follows: the handling of variable length records, fi
State about the Data Dictionary This is another tool of requirement analysis that reduces complexity of DFD. A data dictionary is a catalog of all components of a system. DFD
micro program control
What is software engineering? Software engineering is a discipline in which theories, process and tools are applied to develop professional software.
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