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AWS Certified Solutions Architect study material · question 184 of 500

What role does an SNS topic play between publishers and subscribers?

  1. It is a logical access point and communication channel for asynchronous delivery
  2. It stores messages until a consumer polls for them
  3. It guarantees strict ordering across all subscribers
  4. It converts messages into a queue for each subscriber automatically
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Answer: A. It is a logical access point and communication channel for asynchronous delivery

Publishers send to the topic and SNS pushes the message on to every subscriber; the topic is the channel, not a store to be polled.

Source: What is Amazon SNS? (Amazon Web Services) — What is Amazon SNS?

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