Deadlock in operating system

Question

Accepted Answer

Deadlock is a situation in which two or more processes are unable to proceed because each is waiting for the other to release a resource.

Deadlock occurs when two or more processes are stuck in a circular wait.
Four necessary conditions for deadlock are mutual exclusion, hold and wait, no preemption, and circular wait.
Examples of deadlock prevention techniques include resource allocation graphs and bankers' algorithm.
Deadlock avoidance techniques involve resource scheduling algorithms like the Ostrich algorithm.
Deadlock detection involves periodically checking for the presence of a deadlock using algorithms like the Banker's algorithm.
Deadlock recovery techniques include killing processes, preempting resources, or rolling back to a previous checkpoint.

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