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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.
Question: The activities in a project are given the PERT chart below: a) Identify all activity dependencies in the project. b) Clearly distinguish between critical
Describe Equivalence Partitioning Ans) Input data of a program is separated into different categories so that test cases can be developed for every category of input data. The g
Mention some of the Design principles. a. The design process should not suffer from tunnel vision. b. The design should not reinvent the wheel. c. The Design sh
What is software selection?
Write down the functional requirement for an Library management system. The user should able to search either all of the initial set of databases or select a subset of datab
How the CASE tools are classified? CASE tools can be classified by A. By function or use B. By user type(e.g. manager,tester),or C. By stage in software engineering pr
What transform mapping refers? The transform mapping is a bundle of design steps applied on the DFD in order to map the transformed flow characteristics into specific architect
(1)The planned systematic activities essential to make sure that a component, module, or system conforms to established technical requirements. (2) All actions that are taken to
Problem: (a) Briefly explain the different phases and workflows of the Rational Unified Process. (b) What are the two benefits that might be gained when using such a life-c
What does software engineering means ? Software engineering defined as a discipline in which theories, methods and tools are used to develop professional software.
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