GATE Computer Science (CS) 2022 Shift 1 Solved Paper

Question : 26 of 65

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Which of the following statements is/are TRUE with respect to deadlocks?

Circular wait is a necessary condition for the formation of deadlock
In a system where each resource has more than one instance, a cycle in its wait-for graph indicates the presence of a deadlock.
If the current allocation of resources to processes leads the system to unsafe state, then deadlock will necessarily occur.
In the resource-allocation graph of a system, if every edge is an assignment edge, then the system is not in deadlock state.

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