A company wants to store millions of messages being sent from their IoT devices. They need to have a durable and highly available data store in AWS to store the incoming messages. It needs to be ensured that the Infrastructure for the data store can scale without much intervention. Which of the following would be the ideal implementation steps? Choose 2 answers from the options given below

Answer options:

A.Use IoT Device shadows to store the messages from the devices
B.Create DynamoDB tables to hold the messages from the IoT devices
C.Create IoT rules to transfer the data onto DynamoDB
D.Persist the IoT device shadows to AWS Redshift

Answer – B and C
You can use DynamoDB for storing the messages as this is a high scalable service. Here you don’t need to manage the underlying infrastructure for scalability
Then you can use IoT rules to transfer the messages to DynamoDB as shown below
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To create a DynamoDB rule
In the AWS IoT console, in the left navigation pane, choose Act.
Option A is incorrect since this is used to maintain the state of the device
Option D is incorrect since AWS DynamoDB would be a better store based on the scalability requirements
For more information on creating a rule for IoT and DynamoDB, please visit the url
https://docs.aws.amazon.com/iot/latest/developerguide/iot-ddb-rule.html