Which of the following statement(s) is/are correct regarding short term and…

Correct statements: Short-term selects from jobs in memory those jobs that are ready to execute and allocates the CPU to them. Long-term determines which jobs are brought into memory for processing.

• Short-term (CPU) scheduler: selects a process from the ready queue (processes already in memory) and allocates the CPU. It runs frequently and handles context switching and CPU allocation decisions.

• Long-term (job) scheduler: decides which jobs are admitted into the system (brought into memory) and thus controls the degree of multiprogramming. It runs less often than the short-term scheduler.

Incorrect statements: Short-term determines which jobs are brought into memory for processing. Long-term selects from jobs in memory those jobs that are ready to execute and allocates the CPU to them.

• Why the first incorrect statement is wrong: Bringing jobs into memory is admission control handled by the long-term scheduler, not the short-term scheduler.

• Why the second incorrect statement is wrong: Allocating the CPU to ready jobs is the role of the short-term scheduler; the long-term scheduler does not perform CPU allocation.