Computer Science · Operating Systems

Which of the following statements regarding the functional differences and execution frequencies of schedulers are correct? I. The Long-Term Scheduler (Job Scheduler) is responsible for controlling the degree of multiprogramming by selecting processes from the job pool. II. The Short-Term Scheduler (CPU Scheduler) is invoked very frequently to decide which process in the ready queue will be executed by the CPU next. III. The Medium-Term Scheduler handles the swapping of processes between main memory and secondary storage to manage system memory effectively. IV. The Long-Term Scheduler is executed more frequently than the Medium-Term Scheduler to ensure high-priority jobs are admitted quickly. Choose the most appropriate answer from the options given below: