Operating System Schedulers Overview

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When does a process switch from the running state to the waiting state in CPU-scheduling?

When it is completed I/O operation (correct)

When CPU is assigned to another process

When an interrupt occurs

When it terminates

What is the characteristic of preemptive scheduling for situations 1 and 4?

Random selection process

No choice in scheduling (correct)

User-defined selection process

Multiple choices available

In preemptive scheduling, what happens when a process switches from running state to ready state due to an interrupt?

It terminates

It goes back to the waiting state

It loses control of the CPU (correct)

It continues running without interruption

What type of scheduling involves a situation where the current process loses control of the CPU when an interrupt occurs?

Non-preemptive scheduling Signup and view all the answers

What is the primary decision involved in preemptive scheduling when a process switches from running state to ready state due to an interrupt?

Selecting a different process to run Signup and view all the answers

Which type of scheduling provides choices for situations where a process switches from waiting state to ready state?

Preemptive scheduling Signup and view all the answers

In a non-preemptive scheduling scheme, when a process switches from the waiting state to the ready state (e.g., after completing an I/O operation), which process gets control of the CPU?

The process that completed the I/O operation Signup and view all the answers

What is the primary function of the dispatcher in an operating system?

To switch the CPU from one process to another Signup and view all the answers

In a preemptive scheduling scheme, which of the following situations can trigger a process switch?

All of the above Signup and view all the answers

Which of the following scheduling criteria is primarily concerned with the overall system performance and resource utilization?

CPU utilization Signup and view all the answers

In a heavily used system, what is the recommended range for CPU utilization according to the given information?

80% to 90% Signup and view all the answers

Which of the following statements best describes the relationship between the scheduler and the dispatcher in an operating system?

The scheduler determines the order of process execution, and the dispatcher enforces that order Signup and view all the answers

Which of the following statements about the dispatcher is correct?

The dispatcher gives control of the CPU to the process selected by the short-term scheduler. Signup and view all the answers

What is the primary role of the short-term (CPU) scheduler?

Selecting a process from the ready queue to execute on the CPU. Signup and view all the answers

Which of the following statements best describes preemptive scheduling?

The currently running process can be interrupted by the scheduler to allow another process to run. Signup and view all the answers

What is the primary responsibility of the medium-term scheduler?

Managing the degree of multi-programming in the system. Signup and view all the answers

What is the purpose of the dispatch latency?

It represents the time it takes for the dispatcher to stop one process and start another. Signup and view all the answers

Which of the following statements accurately describes the relationship between the scheduler and the dispatcher?

The scheduler selects the next process to run, and the dispatcher gives control of the CPU to that process. Signup and view all the answers