Podcast
Questions and Answers
What does the CPU scheduler do?
What does the CPU scheduler do?
- Switches the CPU between user and kernel mode
- Manages the input/output devices
- Allocates the CPU to a selected process in memory (correct)
- Selects processes from the disk
When does non-preemptive scheduling occur?
When does non-preemptive scheduling occur?
- When a process switches from running to waiting state (correct)
- When a process switches from waiting to ready state
- When a process switches from running to ready state
- When a process terminates
What is the CPU-I/O burst cycle?
What is the CPU-I/O burst cycle?
- A cycle of I/O execution and CPU wait
- A cycle of CPU execution only
- A cycle of CPU execution and I/O wait (correct)
- A cycle of I/O execution only
What is the dispatcher module responsible for?
What is the dispatcher module responsible for?
What is dispatch latency?
What is dispatch latency?
What is the main goal of the First-Come, First-Served (FCFS) scheduling algorithm?
What is the main goal of the First-Come, First-Served (FCFS) scheduling algorithm?
Why is the average waiting time often quite long under the FCFS policy?
Why is the average waiting time often quite long under the FCFS policy?
In a dynamic situation with one CPU-bound process and many I/O-bound processes, what undesirable effect may result from FCFS scheduling?
In a dynamic situation with one CPU-bound process and many I/O-bound processes, what undesirable effect may result from FCFS scheduling?
What happens when a CPU-bound process finishes its CPU burst in an FCFS scheduling environment?
What happens when a CPU-bound process finishes its CPU burst in an FCFS scheduling environment?
Why does FCFS scheduling algorithm result in substantial variations in waiting time if the process CPU-burst times vary greatly?
Why does FCFS scheduling algorithm result in substantial variations in waiting time if the process CPU-burst times vary greatly?
In CPU scheduling, when does non-preemptive scheduling occur?
In CPU scheduling, when does non-preemptive scheduling occur?
What is the main responsibility of the dispatcher module in CPU scheduling?
What is the main responsibility of the dispatcher module in CPU scheduling?
In the CPU-I/O burst cycle, what does the CPU scheduler do?
In the CPU-I/O burst cycle, what does the CPU scheduler do?
What is the term for the time it takes for the dispatcher to stop one process and start another running?
What is the term for the time it takes for the dispatcher to stop one process and start another running?
When does preemptive scheduling occur in CPU scheduling?
When does preemptive scheduling occur in CPU scheduling?
What is the main goal of the First-Come, First-Served (FCFS) scheduling algorithm?
What is the main goal of the First-Come, First-Served (FCFS) scheduling algorithm?
What is the average waiting time under the FCFS policy?
What is the average waiting time under the FCFS policy?
What scenario may result when using FCFS scheduling with one CPU-bound process and many I/O-bound processes?
What scenario may result when using FCFS scheduling with one CPU-bound process and many I/O-bound processes?
What is a potential drawback of FCFS scheduling in a dynamic situation with fluctuating process types?
What is a potential drawback of FCFS scheduling in a dynamic situation with fluctuating process types?
Which optimization criteria is NOT typically associated with the First-Come, First-Served (FCFS) scheduling algorithm?
Which optimization criteria is NOT typically associated with the First-Come, First-Served (FCFS) scheduling algorithm?
