Question

For a deadlock to arise, which of the following conditions must hold simultaneously ? ( choose all that apply )

a) Mutual exclusion
b) Starvation
c) Hold and wait
d) No preemption
e) Circular wait

Answer 1

For a deadlock to arise, the conditions that must hold simultaneously are mutual exclusion, hold and wait, no preemption, and circular wait.

Step-by-step explanation:

The conditions that must hold simultaneously for a deadlock to arise are:

1. Mutual exclusion: It refers to the situation where a resource can be used by only one process at a time. If a process is currently using a resource, other processes must wait for it to finish.
2. Hold and wait: It occurs when a process holds at least one resource and is waiting for another resource to be released by some other process.
3. No preemption: It means that a resource cannot be forcibly taken away from a process until it has completed its task. A process can release a resource voluntarily, but it cannot be forcibly revoked by another process.
4. Circular wait: It occurs when a set of processes are waiting for each other in a circular manner. Each process in the set is waiting for a resource held by the next process in the set.