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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 conditions exists after performing validation testing? After performing the validation testing there exists two conditions. The function or performance charact
Define measure and metrics. Measure is a quantitative indication of the extent, dimension, amount or size of some attribute of a product or process. Metrics is termed as th
a) Define Annual Change Traffic (ACT) and Annual Maintenance Effort (AME) of Boehm model. b) For a software system of 90 KLOC, 5KLOC of code was added. The initial development
Q. Differentiate between function oriented design and object oriented design. Ans. Function oriented design:- Function oriented design strategy relies on decayed the system i
Q. What is Detailed COCOMO model ? The detailed COCOMO model is able to estimate the staffing cost and duration of each of the subsystem, development phases and modules. It per
What are the objectives of Analysis modeling? i. To explain what the customer needs. ii. To establish a basis for the creation of software design. iii. To devise a set of
Types of coupling are:- A) Data coupling B) Stamp coupling C) Control coupling D) External coupling E)Common coupling F) Content coupling
Q. What are basic Key process areas in CMM? Ans) Key Process Areas (KPAs) adds the areas an organization could focus to improve its software process to the next level. Except f
Discuss in detail about Delphi Method. Procedure The co-ordinator represents a specification and assessment form to each expert. Co-ordinator calls a group discussion
how transaction mapping is done.??clear me with a brief example
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