OS Deadlocks MCQs - MCQtimes.com

c – A process may request some resources and use them. Before it can can request any additional resources, however it must release all the resources that it is currently allocated.

Author: rikazzz Comment

OS Deadlocks

A system is in a safe state only if there exists a ____________

safe allocation

safe resource

safe sequence

all of the mentioned

Author: rikazzz Comment

OS Deadlocks

‘m’ processes share ‘n’ resources of the same type. The maximum need of each process doesn’t exceed ‘n’ and the sum of all their maximum needs is always less than m+n. In this setup, deadlock ____________

can never occur

may occur

has to occur

none of the mentioned

Author: rikazzz Comment

OS Deadlocks

If we preempt a resource from a process, the process cannot continue with its normal execution and it must be ____________

aborted

rolled back

terminated

queued

Author: rikazzz Comment

OS Deadlocks

To _______ to a safe state, the system needs to keep more information about the states of processes.

abort the process

roll back the process

queue the process

none of the mentioned

Author: rikazzz Comment

OS Deadlocks

What is a reusable resource?

that can be used by one process at a time and is not depleted by that use

that can be used by more than one process at a time

that can be shared between various threads

none of the mentioned

Author: rikazzz Comment

OS Deadlocks

To ensure no preemption, if a process is holding some resources and requests another resource that cannot be immediately allocated to it ____________

then the process waits for the resources be allocated to it

the process keeps sending requests until the resource is allocated to it

the process resumes execution without the resource being allocated to it

then all resources currently being held are preempted

Author: rikazzz Comment