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(#M40029460) OPERATING SYSTEM question operating system Keep an EYE

Q. What are necessary conditions for dead lock?

A. 1. Mutual exclusion (where at least one resource is non-sharable)
2. Hold and wait (where a process holds one resource and waits for other resource)
3. No preemption (where the resources can't be preempted)
4. Circular wait (where p[i] is waiting for p[j] to release a resource. i= 1,2,...¦n
j=if (i!=n) then i+1
else 1 )

Asked In Operating System MAN (10 years ago)

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