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You created a FIFO queue but forgot to add '.fifo' suffix in the name. What will happen when you try to create it?

medium📝 Debug Q6 of 15
AWS - SNS and SQS
You created a FIFO queue but forgot to add '.fifo' suffix in the name. What will happen when you try to create it?
AQueue is created successfully as FIFO
BQueue creation fails with an error
CQueue is created as standard queue
DQueue is created but messages are unordered
Step-by-Step Solution
Solution:
  1. Step 1: Check FIFO queue naming requirements

    FIFO queues must have names ending with '.fifo'.
  2. Step 2: Understand AWS validation behavior

    If missing '.fifo', AWS rejects creation with an error.
  3. Final Answer:

    Queue creation fails with an error -> Option B
  4. Quick Check:

    Missing '.fifo' suffix causes creation error [OK]
Quick Trick: FIFO queue names must end with '.fifo' or creation fails [OK]
Common Mistakes:
MISTAKES
  • Assuming queue is created as standard queue
  • Thinking queue is created but unordered
  • Ignoring naming validation errors

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