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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.
Please let me know that through which techniques software quality assurance is planned?
Question: (a) Shneiderman's eight golden rules for dialogue design are (1) strive for consistency, (2) enable frequent users to use shortcuts, (3) give informative feedback,
What are the elements of Computer based Systems? Software: Data structures, Computer programs, & related document Hardware: Electronic devices, inter connectivity devices, E
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
Explain the waterfall model. Explain why it is more advantageous than adhoc methods. Ans Waterfall Model: 1.The waterfall model is a chronological software development p
A testing method that aids in selecting, in a systematic way, a high-yield set of test cases that logically relates causes to effects to produce test cases. It has a useful side ef
System Development Life Cycle (SDLC) stages are sometimes known as System Study. System concepts which are important in developing business information systems expedite problem sol
micro program control
Q. Presume a program will experience a total of 200 failures. Preliminary failure intensity is 16 failure/ CPU hr. It has currently experienced 50 failures. Determine the following
1. Answer the following questions for the method search() below: public static int search (List list, Object element) // Effects: if list or element is null throw NullPointerExcept
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