Round robin scheduling is a common form of which scheduling category?

• A. Non-Preemptive Scheduling
• B. Round-Robin Scheduling
• C. Batch Scheduling
• D. Priority Scheduling

Answer: (B)

Round-robin is a time-sharing technique where every ready process gets a fixed time slice and they are treated in a circular order. This setup is inherently preemptive, because a running process can be interrupted when its quantum expires to give CPU time to the next process. That makes it a preemptive, fair-sharing form of scheduling. The other categories describe different approaches: non-preemptive scheduling keeps the CPU with a process until it finishes or blocks, batch scheduling is about processing jobs offline, and priority scheduling orders by priority rather than rotating fairness. Among the given options, the term that best represents this approach is the Round-Robin Scheduling itself.