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For non sharable resources like a printer, mutual exclusion ____________

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For non sharable resources like a printer, mutual exclusion ____________

(a) must exist

(b) must not exist

(c) may exist

(d) none of the mentioned

The question was posed to me in examination.

My query is from Deadlock Prevention topic in section Deadlocks of Operating System

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Best answer
Correct choice is (a) must exist

The explanation: A printer cannot be simultaneously shared by several processes.

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