In a system with priority scheduling and aging, under what condition might livelock occur instead of starvation or deadlock?

hard⚖️ Approach Comparison Q8 of Q15

Operating Systems - Starvation vs Deadlock vs Livelock - Differences & Examples

AWhen processes continuously increase priority and yield to each other without progressing.

BWhen a low-priority process is permanently blocked by higher-priority ones.

CWhen two processes hold resources and wait indefinitely for each other.

DWhen aging causes priority inversion leading to deadlock.

Step-by-Step Solution

Solution:

Step 1: Understand livelock in priority scheduling
Livelock occurs when processes actively change states (e.g., yielding) but make no progress.
Step 2: Analyze options
When processes continuously increase priority and yield to each other without progressing. describes processes increasing priority and yielding without progress, a livelock.
When a low-priority process is permanently blocked by higher-priority ones. is starvation.
When two processes hold resources and wait indefinitely for each other. is deadlock.
When aging causes priority inversion leading to deadlock. is incorrect; aging does not cause deadlock via priority inversion.
Final Answer:
Option A -> Option A
Quick Check:
Livelock = active yielding without progress [OK]

Quick Trick: Livelock = active yielding without progress [OK]

Common Mistakes:

MISTAKES

Trap Explanation:

PITFALL

Candidates often miss that livelock involves active state changes without progress, especially in priority systems with aging.

Interviewer Note:

CONTEXT

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