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ISRO | ISRO CS 2016 | Question 40

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  • Last Updated : 26 Mar, 2018
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With single resource, deadlock occurs
(A) if there are more than two processes competing for that resources
(B) if there are only two processes competing for that resources
(C) if there is a single process competing for that resources
(D) none of these

Answer: (D)

Explanation: There are 4 conditions required for a deadlock to occur:
1) Mutual Exclusion
2) No pre-emption
3) Hold and wait
4) Circular wait
When there is only one resource, the conditions of hold and wait and circular wait get eliminated. With the assumption that no process can use a resource for infinite amount of time, whenever a process will finish its execution , another process can get the resource. So a deadlock can’t occur.
So, option (D) is correct.

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