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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.
A function module can be called from a transaction screen outside an ABAP/4 program. Yes, a function module called from transaction screen.
What is a cohesive module? A cohesive module performs only "one task" in software process with little interaction with other modules. In other words cohesive module performs on
Explain the design principles. The design process should not endure from tunnel vision. The design should be traceable to the analysis model. Design should not re
Q. Why is maintenance of a software important? Discuss some of the problems that are faced during maintenance of software. Ans: The modification of a software product subsequ
Q. Describe design walk throughs and critical design review? Ans. A design walkthrough is a excellence practice that allows designers to acquire an early validation of desig
Explain about Virtual memory Virtual memory is a method used in some large computer that permit the user to construct programs as by a large memory space were available, equal
A software tool that accepts as input source code, specifications, test criteria, or data structure definitions; uses these inputs to make test input data; and, sometimes, verifies
Question: (a) Show three application areas for agents. (b) What do you meant by "temporally coupled coordination"? Provide an example of a temporally coupled coordination
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
5. Write a c++ program to find the sum of 0.123 ??103 and 0.456 ??102 and write the result in three significant digits.
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