Process Scheduling: Select all statements below that are true

Question 4 options:

	When Multilevel Feedback (MLF) scheduling is applied, processes do not remain at the same priority level, but gradually migrate to lower levels each time they use up their allotted time threshold.
	When Multilevel feedback (MLF) scheduling is applied, processes at lower priority levels can take more processor time than processes at higher levels.
	Priority Inversion means that low-priority processes can be delayed or blocked by higher-priority processes.
	Dynamic Priority Round Robin (DPRR) makes use of a preliminary stage containing prioritized queues.
	Multilevel Priority (ML) scheduling is based on priority queues and uses a fixed set of priorities.