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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
explain levels of transparency
A) In terms of maintenance in software life cycle, does RUP or agile approach give better support? Describe your answer. B) Explain how agile development approach and RUP
When to Re-Engineer? When the system alter are mostly confined to part of the system then re-engineer that part. When hardware or software support becomes obsolete.
What is cycle stealing DMA operation? Cycle Stealing: In this process, the DMA controller transfers one data word at a time, after which it must return control of the buses to
Q. Write short notes on Configuration Management? Software configuration management is a bunch of tracking and control activities that begin when a software project begins an
Differentiate between object oriented and function oriented design . Function-oriented design relies on recognizing functions which transform their inputs to make outputs. I
Discuss about RAD Model Rapid Application Development Model is the one type of incremental model. Gains the high speed development utilising component based construction.
What is meant by Throw away Prototyping? Giving the user a system which is incomplete and then augmenting and modifying it so that user requirements become clear. The obj
Q. Illustrate the relationship between Time and cost? In software projects, time cannot be freely exchanged against cost. Such a trade off is limited by the nature of the softw
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