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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.
Discuss in detail about data modeling. Data modelling makes use of the ERD. Consists of three interconnected information. The data object. Attributes. Relatio
what is interpreter explain pure and impure interpretion
Explain about rapid prototyping techniques. Executable specification languages. Used to living the system specification. It is expressed in a formal, mathematical la
Determine the technique - Parallel With this approach, old and new systems are run together for a time - If new system goes down for any reason, you still have old system
APPLICATIONS SOFTWARE: As has been mentioned earlier, software may conveniently be divided into: systems software (i.e., programs designed to control the execution of other pr
Develop a detailed design to support the use case specified in the accompanying document: ‘ Asg2 . (Hint: Follow the process for use case realization and develop analysis clas
how to draw decosion table? questions based on decision table.
What is the use of CMM? Capability Maturity Model is used in assessing how well an organisation's processes permit to complete and manage latest software projects.
Question: (a) Document the information input and output for the events mentioned in the case study on the basis of facts provided. (b) Comment on the fact that barely any
How LRU technique is implemented The LRU policy is more difficult to execute but has been more attractive on the assumption that the least recently used page is a better candid
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