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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. Realistic approach to the development of large-scale systems? There are a number of advantages of Spiral model that makes it a realistic approach to development of large-sca
Question: (a) Describe with a pictorial representation ISO 12207 software development life cycle activities. (b) A public library is considering the implementation of
Explain Process? The work effort that makes a product. This contains efforts of people and equipment guided by policies, standards, and procedures.
FAN IN is simply a count of the number of other Components that can call, or pass control, to Component A.
Q. Define Software testability? Software testability is the degree to which a software artifact (i.e. a software system, software module, requirements- or design document) su
? A store is in the business of selling paints and hardware items. A number of reputed companies supply items to the store. New suppliers can also register with the store after pro
What is Walkthrough? Ans) Usually, a step-by-step simulation of the implementation of a procedure, as when walking by code, line by line, with an imagined set of inputs. The wor
What are the common activities in design process? i. System structuring - The system is subdivided into principle subsystems components and communications among these subsy
Q. How the Class concept used in Software Engineering? Class:- A class encapsulates data and procedural abstractions required to describe the content and behavior of some real
What is software metric? A Software metric is a easy quantitative measure derivable from any attribute of the software life cycle (E.g.) LOC (Line Of Code) Function poin
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