AWS - SNS and SQS
Why does AWS recommend using long polling instead of short polling when receiving messages from an SQS queue?
Why does AWS recommend using long polling instead of short polling when receiving messages from an SQS queue?
hard📝 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Understand difference between short and long polling
Short polling returns immediately even if no messages; long polling waits for messages to arrive.Step 2: Identify benefits of long polling
Long polling reduces empty responses, saving cost and improving efficiency.Final Answer:
Long polling reduces empty responses and lowers cost by waiting for messages. -> Option AQuick Check:
Long polling reduces empty receives and cost [OK]
Quick Trick: Long polling waits for messages, saving cost [OK]
Common Mistakes:
MISTAKES- Thinking long polling speeds delivery
- Assuming it guarantees order
- Believing it encrypts messages
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