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AWS Certified Solutions Architect study material · question 234 of 500

Which two statements about API Gateway API types are correct? Choose two.

  1. REST APIs route messages by their content
  2. WebSocket APIs are limited to the GET method
  3. REST APIs are HTTP-based and keep no session state between client and server
  4. WebSocket APIs support stateful, full-duplex communication
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Answer: C. REST APIs are HTTP-based and keep no session state between client and server
D. WebSocket APIs support stateful, full-duplex communication

REST APIs are stateless and use standard HTTP methods; WebSocket APIs are stateful and route incoming messages on their content.

Source: What is Amazon API Gateway? (Amazon Web Services) — What is Amazon API Gateway?

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