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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.
Find the length of the hypotenuse. With a short side of radical 3 and a long side with 3 radical 2 Simplify the radical if you can.
Stochastic testing is the similar as "monkey testing", but stochastic testing is a lot more technical sounding name for the similar testing process.
Question: a) Briefly describe the principles of the DSDM methodology. b) What are the advantages of using the DSDM methodology? c) The MOSCOW technique is used to priori
You are to create a decision table to help you decide what to do for the day. If it is a weekday and it is not a holiday, then you go to work. However, if it is a weekday and it
Q. Show the Reasons of current software crisis? larger problem sizes, increasing skill shortage, and lack of adequate training in software engineering,
Explain Boundary value? (1)A data value that corresponds to a input, internal, or output value specified for a system or component. (2) A value which lies at, or just inside
What is the use of CMM? Capability Maturity Model is used in assessing how well an organisation's processes permit to complete and manage latest software projects.
Define Software design. a. Software design is a step by step process through which requirements are translated into a "blue print" to construct the software. b. The blue pr
What are the elements of design model? i. Data design ii. Component-level design iii. Interface design iv. Architectural design
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