Question

With single resource, deadlock occurs 
1. If there are more than two processor competing for that resource
2. If there are only two processes competing for that resource
3. If there is a single process competing for that resource
4. None of these 

Answer 1

Correct Answer - Option 4 : None of these 

Concepts:

Deadlock prevention can be done by eliminating any of the below condition:

1. Mutual Exclusion

2. Hold and wait

3. No preemption

4. Circular Wait

Hold and wait:

A process must be holding at least one resource and waiting to acquire additional resources that are currently being held by other processes.

Explanation:

When there is only one resource, the conditions of hold and wait and circular wait gets eliminated. With the assumption that no process can use a resource for an infinite amount of time, whenever a process will finish its execution, another process can get the resource. So a deadlock can’t occur. Hence correct answer is option 4, that is, none of these.