For non sharable resources like a printer, mutual exclusionGroup of answer choicesmay existnone of thesemust not existmust exist

Understanding Mutual Exclusion for Non-sharable Resources

In the context of computer science and resource management, mutual exclusion is a key concept, particularly relevant when dealing with non-sharable resources like printers.

1. Definition of Mutual Exclusion: Mutual exclusion is a property of concurrency control, which ensures that multiple processes do not access a shared resource simultaneously in a way that could lead to inconsistency or resource conflict.

2. Non-sharable Resources: A non-sharable resource, such as a printer, can only be used by one process at a time. If multiple processes attempt to access the printer simultaneously, it may result in errors, data corruption, or a failure to complete tasks.

3. Implication for Printers: Given that a printer is a non-sharable resource, mutual exclusion must exist in order to manage access to it. This ensures that when one process is using the printer, other processes must wait until it becomes free.

Conclusion

Based on the analysis, the correct answer is "must exist". Mutual exclusion must be enforced for non-sharable resources like printers to prevent conflicts and ensure orderly access for processes.