Operating System - Deadlocks
6. The methods for dealing with the deadlock problem is
- Option : D
- Explanation : Deadlock Detection.
Always grant resource request when possible. Periodically check for deadlocks. If a deadlock exists, recover from it.
Deadlock Prevention
Disallow one of the four necessary conditions for deadlock.
Deadlock Avoidance.
Do not grant a resource request if this allocation have the potential to lead to a deadlock.
Ignore the problem
Makes sense if the likelihood is very low.
7. A system has 3 processes sharing 4 resources. If each process needs a maximum of 2 units, then
- Option : A
- Explanation : Atleast one process will be holding 2 resources in case of a simultaneous demand from all the processes. That process will release the 2 resources, thereby avoiding any possible deadlock.
