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In FreeRTOS, what determines which task the scheduler runs next?

easy📝 Conceptual Q2 of 15
FreeRTOS - Task Scheduling

In FreeRTOS, what determines which task the scheduler runs next?

AThe task with the highest priority that is ready to run.
BThe task that was created most recently.
CThe task with the lowest priority that is ready to run.
DThe task with the longest name.
Step-by-Step Solution
Solution:

  1. Step 1: Recall FreeRTOS scheduling principle

    FreeRTOS always selects the highest priority task that is ready to run.

  2. Step 2: Eliminate incorrect options

    Task creation time, name length, or lowest priority do not affect scheduling order.

  3. Final Answer:

    The task with the highest priority that is ready to run. -> Option A

  4. Quick Check:

    Scheduler picks highest priority ready task = D [OK]
Quick Trick: Scheduler always picks highest priority ready task [OK]
Common Mistakes:
  • Confusing creation time with priority
  • Thinking lowest priority runs first
  • Ignoring task readiness

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