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You tried to start an EC2 instance but got an error saying the instance does not exist. What is the most likely cause?

medium📝 Debug Q14 of 15
AWS - EC2 Fundamentals
You tried to start an EC2 instance but got an error saying the instance does not exist. What is the most likely cause?
AThe instance is terminated
BThe instance is in running state
CThe instance is in stopped state
DThe instance is pending
Step-by-Step Solution
Solution:

  1. Step 1: Analyze error meaning

    If AWS says the instance does not exist, it usually means it was deleted or terminated.

  2. Step 2: Match instance state to error

    Terminated instances are removed and cannot be started again, causing this error.

  3. Final Answer:

    The instance is terminated -> Option A

  4. Quick Check:

    Instance not found = Terminated state [OK]
Quick Trick: Instance not found means terminated, not stopped [OK]
Common Mistakes:
  • Assuming stopped means instance missing
  • Confusing running with missing
  • Ignoring termination possibility

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