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Question 1 of 4. 0 correct, 0 incorrect.

Put the steps of a keyed payment whose response is lost in order.

  1. 1The server charges and stores the response under the key.
  2. 2The client retries with the same key.
  3. 3It sends POST /payments with the key.
  4. 4The response is lost on the way back.
  5. 5The server returns the stored response without charging again.
  6. 6The client generates a key.