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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.
1. Answer the following questions for the method search() below: public static int search (List list, Object element) // Effects: if list or element is null throw NullPointerExcept
What is Code Optimization and Code Generation?
EXPLAIN COMPONENTS OF DATABASE MANAGEMENT
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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What are the Toolsused in system analyst Systems analyst have numerous tools to help them in carrying out their work. As many of their projects are for big companies it is ess
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