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How can combining AWS SNS and SQS improve a cloud application's messaging reliability?

hard📝 Application Q8 of 15
AWS - SNS and SQS
How can combining AWS SNS and SQS improve a cloud application's messaging reliability?
ASNS broadcasts messages to multiple SQS queues, which store messages until processed
BSQS sends messages directly to SNS topics for faster delivery
CSNS replaces SQS by storing messages permanently
DSQS automatically deletes messages after SNS publishes them
Step-by-Step Solution
Solution:

  1. Step 1: Understand SNS and SQS roles

    SNS broadcasts messages; SQS queues store messages reliably until consumers process them.

  2. Step 2: Match with options

    SNS broadcasts messages to multiple SQS queues, which store messages until processed correctly describes using SNS to send to multiple SQS queues for reliability.

  3. Final Answer:

    SNS broadcasts messages to multiple SQS queues, which store messages until processed -> Option A

  4. Quick Check:

    SNS + SQS = broadcast + reliable storage [OK]
Quick Trick: Use SNS to broadcast and SQS to store messages [OK]
Common Mistakes:
MISTAKES
  • Thinking SQS sends to SNS
  • Assuming SNS stores messages permanently
  • Believing SQS deletes messages after SNS publishes

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