[Solved] Which scheduling scenario best illustrates the use of First-Come, First-Served (FCFS) scheduling? - Ans: A print queue where documents are printed in the order they are submitted... | Operating Systems

Operating Systems - FCFS Scheduling - Convoy Effect & Waiting Time

Which scheduling scenario best illustrates the use of First-Come, First-Served (FCFS) scheduling?

AA real-time system requiring immediate response to high-priority interrupts.

BA batch processing system where all jobs arrive simultaneously and have similar CPU bursts.

CA print queue where documents are printed in the order they are submitted without preemption.

DAn interactive system where short tasks are prioritized over long-running ones.

Step-by-Step Solution

Solution:

Step 1: Identify FCFS characteristics
FCFS schedules processes in the order they arrive without preemption.
Step 2: Evaluate each option
A: Print queue processes documents exactly in arrival order, matching FCFS.
B: Batch jobs arriving simultaneously with similar CPU bursts do not highlight FCFS well.
C: Real-time systems require priority/preemption, not FCFS.
D: Interactive systems prioritize short tasks, not FCFS.
Final Answer:
Option C -> Option C
Quick Check:
Print queues are classic FCFS examples [OK]

Quick Trick: FCFS processes strictly in arrival order without preemption [OK]

Common Mistakes:

MISTAKES

Trap Explanation:

PITFALL

Candidates often think FCFS is suitable for all systems or that it prioritizes short jobs, but it strictly follows arrival order without preemption.

Interviewer Note:

CONTEXT

Tests candidate's ability to recognize FCFS applicability in real-world scenarios.

Master "FCFS Scheduling - Convoy Effect & Waiting Time" in Operating Systems

2 interactive learning modes - each teaches the same concept differently

More Operating Systems Quizzes

Which scheduling scenario best illustrates the use of First-Come, First-Served (FCFS) scheduling?