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What are the deadlock prevention methodologies?
a. Necessitate that processes request all resources before starting - if cannot be granted don't run.
b. Processes only allowed requesting resources when they hold none.
c. If a resource request can't be granted to halt process and take away resources held. Give back and restart while all available simultaneously.
d. If a resource request can't be granted to take them away from some other process.
e. Offering a total ordering of resources and only grant requests if up along the order or release ones ahead in the order
Define approaches that require knowledge of the system state? Answer: Deadlock detection, Deadlock prevention, Deadlock Avoidance.
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what is Number System
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Explain the various methods for handling deadlocks. A set of processes is deadlocked if every process in the set is waiting for an event that only a process in the
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Q. What is the purpose of system calls? Answer: System calls permit user-level processes to request services of the operating system.
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