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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.
Explain about the incremental model. Have same phases as the waterfall model. Phases are Analysis. Design. Code. Test. Incremental model deliver
Clear box testing is the similar as white box testing. It is a testing approach that consider the application's program structure, and acquires test cases from the application's pr
What are the types of metrics? Direct metrics - It refers to right away measurable attributes. Example - Lines of code, execution speed. Indirect metrics - It refers
Q. How is software design different from coding? Ans: Points of difference among software design as well as coding can be laid down as under: Design : 1. Design is mo
BTEC HND course
Documentation specifying the scope, approach, resources, and schedule of intended testing activities. It signifies test items, the features to be tested, the testing tasks, respons
What are the principle stages of VORD method? Viewpoint identification: Identify the services given to each viewpoint. Viewpoint structuring: Grouping linked viewpoints in t
Problem: (a) Define measurement and briefly summarize the representation condition for measurement. (b) Software metrics is a term that embraces many activities, all of whi
Define process maturity. In recent years there has been a major highlighting on process maturity. The Software Engineering Institute. (SEI) has developed a widespread model p
Consider a program that registers students for different programs. The students fill up a form and submit it. This is sent to the departments for confirmation. Once it is confirmed
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