CPU Scheduling Algorithms Quiz

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What is the purpose of CPU Scheduling?

The purpose of CPU Scheduling is to make the system more efficient, faster, and fairer.

What is a process in computing?

In computing, a process is the instance of a computer program that is being executed by one or many threads. It contains the program code and its activity.

Why do we need to schedule processes?

We need to schedule processes in order to allow one process to use the CPU while another process is delayed, thus making full use of the CPU and improving system efficiency.

What is the main function of CPU scheduling?

The main function of CPU scheduling is to ensure that whenever the CPU remains idle, the OS has at least selected one of the processes available in the ready-to-use line. Signup and view all the answers

Why is an effective CPU scheduling algorithm necessary?

An effective CPU scheduling algorithm is necessary to improve resource utilization and minimize the chances of system failure or deadlock. Signup and view all the answers

What are the different types of CPU scheduling algorithms mentioned in the text?

The different types of CPU scheduling algorithms mentioned in the text are First Come First Serve (FCFS), Shortest Job First (SJF), Longest Job First (LJF), Priority Scheduling, Round Robin, and Shortest Remaining Time First. Signup and view all the answers

What is the characteristic of the Priority Scheduling algorithm?

The characteristic of the Priority Scheduling algorithm is that it works based on the priority of a process, where the most important process is done first. In case of conflicts, the FCFS algorithm is used. Signup and view all the answers

What is the advantage of Shortest Remaining Time First (SRTF) scheduling algorithm?

The advantage of SRTF is that it minimizes the waiting time for processes, leading to better overall system performance. Signup and view all the answers

What is the disadvantage of Longest Remaining Time First (LRTF) scheduling algorithm?

The disadvantage of LRTF is that it may result in starvation for processes with shorter execution times, as longer processes are prioritized. Signup and view all the answers

What is the advantage of Highest Response Ratio Next (HRRN) scheduling algorithm?

The advantage of HRRN is that it provides a good balance between response time and turnaround time for processes. Signup and view all the answers

What is the disadvantage of Multilevel Feedback Queue Scheduling (MLFQ) algorithm?

The disadvantage of MLFQ is that it requires careful configuration of the number and priority of queues, which can be complex to manage. Signup and view all the answers

What is the formula to calculate the average waiting time?

Average Wait Time: (0+4+6+13) / 4 = 5.75 Signup and view all the answers

What is the formula to calculate the average waiting time in the Shortest Job Next (SJN) scheduling algorithm?

Average Wait Time: (0 + 4 + 12 + 5)/4 = 21 / 4 = 5.25 Signup and view all the answers

What is the formula to calculate the average waiting time in the Priority Based Scheduling algorithm?

Average Wait Time: (0 + 10 + 12 + 2)/4 = 24 / 4 = 6 Signup and view all the answers

What is the formula to calculate the average waiting time in the Shortest Remaining Time Round Robin Scheduling algorithm?

Average Wait Time: (9+2+12+11) / 4 = 8.5 Signup and view all the answers

CPU Scheduling Algorithms Quiz

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