Q52

MCQ2 marks, −0.67

Consider the following policies for preventing deadlock in a system with mutually exclusive resources. Which of the above policies can be used for preventing deadlock? Any one of (I) and (III) but not (II) or (IV) Any one of (I), (III) and (IV) but not (II) Any one of (II) and (III) but not (I) or (IV) Any one of (I), (II), (III) and (IV)

(A)

Process should acquire all their resources at the beginning of execution. If any resource is not available, all resources acquired so far are released.

(B)

The resources are numbered uniquely, and processes are allowed to request for resources only in increasing resource numbers

(C)

The resources are numbered uniquely, and processes are allowed to request for resources only in deccreasing resource numbers

(D)

The resources are numbered uniquely. A processes is allowed to request for resources only for a resource with resource number larger than its currently held resources

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