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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.
Level 4 (Managed) Organisation satisfies all the requirements of level-3. At this level quantitative standards are set for software processes andproducts. Project analysis is
The test schedule is a schedule that signifies all tasks needed for a successful testing effort, a schedule of all test activities and resource needs.
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
What is boundary data- Test data Extreme/boundary data - This is data at the limits of validity/acceptability (for instance, if a date is being input, two values at the
solve inequalities and graph the solutions: [z/25-1]
Explain any two graphical design notations used in procedural design
Software quality and testing issues: The aim of this assignment is to enable students to conduct an in-depth research on software quality and testing issues. Software Quality
Define Data Dictionary. The data dictionary can be explained as an organized collection of all the data elements of the system with precise and rigorous explanations so that us
QUESTION (a) Compare and contrast between Project logic evaluation (PLE), Networking and Scheduling (b) Discuss how the true cost of defects can often be higher than the ini
explain the goal oriented requirement elicitation process with a neat sketch
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