CPU Scheduling Decisions Quiz

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What is the purpose of the CPU scheduler?

To prioritize processes based on their resource requirements
To handle input/output operations for processes
To allocate CPU cores to processes in the ready queue (correct)
To manage memory allocation for processes

Which of the following situations does NOT require a CPU scheduling decision?

A process switches from running to waiting state (correct)
A process terminates
A process switches from running to ready state
A process switches from waiting to ready state

How can the ready queue be ordered?

Based on the arrival time of processes
Based on the CPU burst time of processes
The text does not specify how the ready queue can be ordered (correct)
Based on the priority of processes

In which situation(s) does the CPU scheduler have a choice regarding which process to execute?

Both B and C (A) Signup and view all the answers

What is the primary function of the CPU scheduler?

To manage the execution of processes on CPU cores (A) Signup and view all the answers

In which of the following CPU scheduling decision points does the scheduler have a choice regarding which process to execute?

When a process switches from running to ready state (B) Signup and view all the answers

Which of the following is the best description of the primary function of the CPU scheduler based on the information provided?

To allocate CPU cores to processes in the ready queue (B) Signup and view all the answers

What is a key advantage of nonpreemptive scheduling in terms of system behavior?

Reduced overhead costs (C) Signup and view all the answers

Why does nonpreemptive scheduling lack flexibility compared to preemptive scheduling?

Inability to adapt to changing conditions dynamically (A) Signup and view all the answers

What is a significant disadvantage of nonpreemptive scheduling in terms of multitasking?

Lack of multitasking ability (A) Signup and view all the answers

Why might nonpreemptive scheduling struggle to meet deadlines in real-time systems?

Long-running tasks may prevent timely execution of critical tasks (D) Signup and view all the answers

In which type of system application is nonpreemptive scheduling commonly used due to the need for high efficiency and deterministic behavior?

Embedded Systems (A) Signup and view all the answers

What characteristic distinguishes nonpreemptive scheduling in batch processing applications?

Execution without interruption for efficient resource use (B) Signup and view all the answers

What is the key distinction between nonpreemptive and preemptive scheduling?

Preemptive scheduling allows tasks to be interrupted, while nonpreemptive scheduling does not. (C) Signup and view all the answers

What is the main principle behind nonpreemptive scheduling?

Efficient use of resources (C) Signup and view all the answers

Which of the following is a disadvantage of nonpreemptive scheduling?

It is less flexible than preemptive scheduling. (D) Signup and view all the answers

Which of the following is a key advantage of nonpreemptive scheduling?

It allows for better resource utilization. (A) Signup and view all the answers

Why is nonpreemptive scheduling suitable for systems that require exclusive access to certain hardware components or software modules?

Because it does not allow for sharing of resources among tasks. (A) Signup and view all the answers

Which of the following best describes the flexibility of nonpreemptive scheduling compared to preemptive scheduling?

Nonpreemptive scheduling is less flexible as it cannot adapt to changing conditions dynamically. (C) Signup and view all the answers