Questions 55 to 57

Explanations for questions 55 to 57

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Question 55

A solutions architect is creating a multi-tier application that includes loosely-coupled, distributed application components and needs to determine a method of sending notifications instantaneously. Using Amazon SNS, which transport protocols are supported? (Select TWO)

  1. Amazon SWF
  2. FTP
  3. HTTPS
  4. AWS Lambda
  5. Email-JSON

Correct Answer: 3, 5

Explanation: Note that the question asks you which transport protocols are supported, and not which subscribers. Therefore, AWS Lambda is not supported.

Amazon SNS supports notifications over multiple transport protocols:

  • HTTP/HTTPS: Subscribers specify a URL as part of the subscription registration.
  • Email/Email-JSON: Messages are sent to registered addresses as email (text-based or JSON-object).
  • SQS: Users can specify an SQS standard queue as the endpoint.
  • SMS: Messages are sent to registered phone numbers as SMS text messages.

INCORRECT:Amazon SWF” is incorrect as this is not a supported transport protocol.

INCORRECT:FTP” is incorrect as this is not a supported transport protocol.

CORRECT:HTTPS” is the correct answer.

INCORRECT:AWS Lambda” is incorrect as this is not a supported transport protocol.

CORRECT:Email-JSON” is the correct answer.

References: https://aws.amazon.com/sns/faqs/

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