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ISRO | ISRO CS 2017 | Question 65

  • Last Updated : 28 Mar, 2020

Which of the following is not true with respect to deadlock prevention and deadlock avoidance schemes ?
(A) In deadlock prevention, the request for resources is always granted if resulting state is safe
(B) In deadlock avoidance, the request for resources is always granted, if the resulting state is safe
(C) Deadlock avoidance requires knowledge of resource requirements a priori
(D) Deadlock prevention is more restrictive than deadlock avoidance

Answer: (A)

Explanation: In Deadlock Prevention mechanism a set of methods are devised to ensure at least one of the necessary conditions “Mutual Exclusion”, “Hold and Wait”, “Circular Wait”, “Non-preemption” can not hold.

Option (A) is correct.

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