Operating System MCQs

A. A process must be not be holding a resource, but waiting for one to be freed, and then request to acquire it
B. A process must be holding at least one resource and waiting to acquire additional resources that are being held by other processes
C. A process must hold at least one resource and not be waiting to acquire additional resources
D. None of the mentioned

A. To ensure that at least one of the necessary conditions cannot hold
B. To ensure that all of the necessary conditions do not hold
C. To decide if the requested resources for a process have to be given or not
D. To recover from a deadlock

A. Must exist
B. Must not exist
C. May exist
D. None of the mentioned

A. Is required
B. Is not required
C. May be or may not be required
D. None of the mentioned

A. Whenever a resource is requested by a process, it is not holding any other resources
B. Each process must request and be allocated all its resources before it begins its execution
C. A process can request resources only when it has none
D. All of the mentioned

A. Low cpu utilization
B. Low resource utilization
C. Very high resource utilization
D. None of the mentioned

A. Then the process waits for the resources be allocated to it
B. The process keeps sending requests until the resource is allocated to it
C. The process resumes execution without the resource being allocated to it
D. Then all resources currently being held are preempted

A. Impose a total ordering of all resource types and to determine whether one precedes another in the ordering
B. To never let a process acquire resources that are held by other processes
C. To let a process wait for only one resource at a time
D. All of the mentioned

A. All resources have a single instance
B. All resources have multiple instances
C. All resources have a single 7 multiple instances
D. All of the mentioned

A. Pi is waiting for pj to release a resource that pi needs
B. Pj is waiting for pi to release a resource that pj needs
C. Pi is waiting for pj to leave the system
D. Pj is waiting for pi to leave the system