IOT-Manage is a IT consulting and managed services wo offers implementation and managed services on IOT to customers. IOT-Manage is working with one of the leading manufacturing company in building a IOT management platform for their devices. All the messages captured need to be stored in DynamoDB in document format. 
Please identify what different artifacts and their functions mentioned below need to be used to complete the setup. Select 4 options

Answer options:

A.Gateway to securely and efficiently communicate with AWS IoT
B.Message broker to securely and efficiently communicate with AWS IoT
C.Group Registry to organize the resources associated with each device in the AWS Cloud
D.Rules engine to provide integration services with AWS DynamoDB
E.Message broker to provide a secure mechanism for devices and AWS IoT applications to publish and receive messages from each other
F.Shadow service to provide persistent representations of your devices in the AWS Cloud