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This is a computer science engineering quiz on operating systems, which includes questions based on deadlock, necessary conditions for deadlock, removing deadlock, etc.
Which of the following is system software?
Which one of the following is not a multitasking operating system?
Which of the following condition is required for a deadlock to be possible?
Mutual exclusion
A process may hold allocated resources while awaiting assignment of other resources
No resource can be forcibly removed from a process holding it
All of the mentioned
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
A system is in the safe state if ____________.
The system can allocate resources to each process in some order and still avoid a deadlock
There exist a safe sequence
All of the mentioned
None of the mentioned
The circular wait condition can be prevented by ____________.
Defining a linear ordering of resource types
Using thread
Using pipes
All of the mentioned
What is the drawback of banker’s algorithm?
In advance processes rarely know how much resource they will need
The number of processes changes as time progresses
Resource once available can disappear
All of the mentioned
A user-interface that is easy to use is considered to be____________.
User-happy
User-simple
User-friendly
None of the above
A ..... is a flash memory storage device that plugins into a USB port.
USB snap drive
USB flash drive
USB memory maker drive
None of above
The ....... is the drive containing the files to be copied.
Source drive
Destination drive
USB drive
None of the above
A deadlock can be broken by ____________.
Abort one or more processes to break the circular wait
Abort all the process in the system
Preempt all resources from all processes
None of the mentioned
The two ways of aborting processes and eliminating deadlocks are ____________.
Abort all deadlocked processes
Abort all processes
Abort one process at a time until the deadlock cycle is eliminated
All of the mentioned
Those processes should be aborted on occurrence of a deadlock, the termination of which?
Is more time consuming
Incurs minimum cost
Safety is not hampered
All of the mentioned
Cost factors for process termination include ____________.
Number of resources the deadlock process is not holding
CPU utilization at the time of deadlock
Amount of time a deadlocked process has thus far consumed during its execution
All of the mentioned
The process to be aborted is chosen on the basis of the following factors?
Priority of the process
Process is interactive or batch
How long the process has computed
All of the mentioned
