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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 are the basic advantages of using interrput-initiated data transfer over transfer under progrm control without an interrput
Q. Illustrate Basic COCOMO model? Basic COCOMO model:- It provides an order of magnitude of cost. This model utilizes estimated size of software project and the type of softwar
QUESTION - Characteristics of DSs (a) List and describe any 4 characteristics of distributed systems. (b) State the criterion for a system to be considered as not a distrib
TASK A: Minitab analyses for Case Study task 3 (robustness for the filler flap design; TASK3.MTW) Describe an 8-run 2-level fractional factorial experiment to check the robustne
What is V- Diagram (model)? Ans) A diagram that imagine the order of testing activities and their corresponding phases of growth
Level 4 (Managed) Organisation satisfies all the requirements of level-3. At this level quantitative standards are set for software processes andproducts. Project analysis is
What is the work product of software design process and who does this? A design model that encompasses architectural, component level, interface and their representations is t
Define process maturity in short?
Q. Briefly explain Integration Testing? Integration Testing: In this the module are methodically integrated and tested to find protocol design error, interface problems, errors
Explain Error guessing? Ans) Test data selection method. The selection criterion is to pick values that seem likely to reason errors.
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