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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 does it mean by business process engineering tools ?
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Comparison testing is testing that evaluate software weaknesses and strengths to those of competitors' products.
After studying the module you should understand the principles and techniques associated with modular software development. After studying the module you should understand the c
What are repositories used by QTP to store object properties? QTP uses two kinds of repositories to store object properties. a.) Shared object repository: A global object
Describe the effect of defining a prototype on the overall cost of the software project? The prototyping model: In this model, a prototype (an previous approximation of a fin
box diagram with example
(1)The planned systematic activities essential to make sure that a component, module, or system conforms to established technical requirements. (2) All actions that are taken to
what resources are used when a thread is created ?
Develop a software architecture for the Case Study. a. Identify the major 'design forces' () affecting the system, and discuss the 'architectural response' you think most ap
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