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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.
Q. Discuss the problems faced during software maintenance? The most significant problem during maintenance is that before correcting or else modifying a program the programmer
Testing designed to challenge a system's capability to handle the maximum amount of data over a period of time. This type of testing also classify a system's ability to handle over
Q. Compare the Manpower and development time? Manpower may perhaps refer to labour Manpower either an abstract term for human labour effort as opposed to machines, animals a
Define top-down testing. System developed starting from most general modules. Testing begins from the most general module.
Explain the working of Gantt charts - Gantt charts enable emailing of project/tasks info to others automatically - Gantt charts allow use of intranet/email facility to down
Question 1: (a) A company wishes to under-go a Business Process Re-engineering activity with respect to its core business processes. Explain the extent to which MIS could be
Q. Explain the bath tub curve of hardware reliability? Ans: As indicated in the diagram below there are three phasing in the life of whichever hardware component that is burn
we got the code for mobile app we need a document for that
Mention some of the factors to be considered during System Modeling. Simplifications Assumptions Constraints
Determine the problems of software maintenance Software maintenance has the below problems: i) It is very cumbersome to analyse and understand code written by somebody.
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