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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.
What is Up time? "Up time" is the time period when a method is operational and in service. Up time is the sum of idle time and busy time.
Top down design: A top down design approach begins by identifying the main modules of the system, decomposing them into their lower level modules and iterating unless the desired
Black Box Testing :-Black Box Testing is also known as behavioural testing, focuses on the functional requirements of the software. It allows the software engineer to derive sets o
Product and process standards Problems with standards They may not be seen as relevant and up-to-date by software engineers. They often include too much bureaucratic form
Question 1: Prepare a short note on technology strategy. Explain in brief about the innovation management. Question 2: What is Research and Development (R&D), and how i
Bottom-up testing is a method of integration testing. A test engineer makes and uses test drivers for components that have not yet been developed, because, with bottom-up testing,
box diagram with example
Explain the Various phases of SDLC Various phases of SDLC are defined as below: Requirements Analysis Design Coding Software Testing Maintenance.
Question: (a) With reference to component communication, explain the differences between interface oriented and message oriented communication in terms of communication method
fact finding examples
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