OS Processes
What is the objective of multiprogramming?
Have a process running at all time
Have multiple programs waiting in a queue ready to run
To increase CPU utilization
None of the mentioned
To increase CPU utilization
The objective of multiprogramming is to increase CPU utilization. Generally, a single process cannot use CPU or I/O at all time, whenever CPU or I/O is available another process can use it. Multiprogramming offers this ability to OS by keeping multiple programs in a ready queue.
To increase CPU utilization The objective of multiprogramming is to increase CPU utilization. Generally, a single process cannot use CPU or I/O at all time, whenever CPU or I/O is available another process can use it. Multiprogramming offers this ability to OS by keeping multiple programs in a ready queue.
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If a process fails, most operating system write the error information to a ______A. log file
B. another running process
C. new file
D. none of the mentioned
A process can be terminated due to __________
A. normal exit
B. fatal error
C. killed by another process
D. all of the mentioned
The number of processes completed per unit time is known as __________
A. Output
B. Throughput
C. Efficiency
D. Capacity
The primary distinction between the short term scheduler and the long term scheduler is __________
A. The length of their queues
B. The type of processes they schedule
C. The frequency of their execution
D. None of the mentioned
What is a long-term scheduler?
A. It selects processes which have to be brought into the ready queue
B. It selects processes which have to be executed next and allocates CPU
C. It selects processes which heave to remove from memory by swapping
D. None of the mentioned
What is a short-term scheduler?
A. It selects which process has to be brought into the ready queue
B. It selects which process has to be executed next and allocates CPU
C. It selects which process to remove from memory by swapping
D. None of the mentioned
When the process issues an I/O request __________
A. It is placed in an I/O queue
B. It is placed in a waiting queue
C. It is placed in the ready queue
D. It is placed in the Job queue
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