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Operating SystemExplain the core principle behind Deadlock Avoidance. Draw a Resource-allocation graph with a cycle but no deadlock.20247mOperating SystemExplain the Producer-Consumer problem and discuss how semaphores can be used to solve it.20257mOPERATING SYSTEMState and explain the necessary and sufficient conditions for a deadlock.20237mOperating SystemJustify the following statement: "Cycle in resource allocation graph does not always imply the occurrence of deadlock".20234m
PreviousConsider a system running ten I/O-bound tasks and one CPU-bound task. Assume that the I/O-bound tasks issue an I/O operation once for every millisecond of CPU computing and that each I/O operation takes 10 milliseconds to complete. Also assume that the context-switching overhead is 0.1 millisecond and that all processes are long-running tasks. Describe the CPU utilization for round-robin scheduler when: (i) the time quantum is 1 millisecond; (ii) the time quantum is 10 milli-seconds.NextConsider a system consisting of four resources of the same type that are shared by three processes, each of which needs at most two resources. Show that the system is deadlock-free.
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