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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.
Write down the Data dictionary for the data item "Telephone Number". Names: Telephone number Aliases: none Where to use /How to use: assess against set-up Explanation
Explain the role and functions of a Systems Analyst in the overall project development.
What is cyclomatic complexity? Cyclomatic complexity is software metric that provides the quantitative measure of logical difficulty of the program. The Cyclomatic complexit
A) In terms of maintenance in software life cycle, does RUP or agile approach give better support? Describe your answer. B) Explain how agile development approach and RUP
What are the roles of glass-box and black-box testing tools? Glass Box (or white box) testing is the method of giving i/p to the system and checking how the system processes i/
Determine the common problems with software automation ? The biggest concern is the cost incurred for test automation. Also, often s/w test automation needs skilled personnel an
Explain the term - Code Complete - Phase of development where functionality is implemented completely with only bug fixes remaining. - All functions from functional specific
List the guidelines for data design. i. Apply systematic analysis on data. ii. Identify data structures and related operations. iii. Establish data dictionary. iv. Use
Q. Explain about Function count? Function count:- It measures the functionality from the user point of view that is on the basis of what the user requests and receives in ret
Q. Assuming the Putnam model and given S = 100,000 C = 5000 and D 0 = 15 calculate the development time t d. Ans: In Putnam model (S/C ) 3 = D 0 t d 7 lhs = 20
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