AWS IoT is a managed cloud platform that lets connected devices – cars, light bulbs, sensor grids, and more – easily and securely
interact with cloud applications and other device

– Connect and manage your devices

– Process and act upon device data

– Read and set device state at any time

By default, the EC2Config service is included in AMIs for Windows Server 2003 through Windows Server 2012 R2. When the EC2Config service is updated, new Windows AMIs include the latest version of the service. However, you need to update your own Windows AMIs and instances with the latest version of EC2Config.

Reference:

http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/UsingConfig_Install.html

The AWS Security Token Service (STS) is a web service that enables you to request temporary, limited-privilege credentials for AWS Identity and Access Management (IAM) users or for users that you authenticate (federated users).

AWS – Security Token Services : Key terms

• Federation
• Identity Broker
• Identity Store
• Identities

Auto Scaling lifecycle hooks enable you to perform custom actions as Auto Scaling launches or terminates instances. For example, you could install or configure software on newly launched instances, or download log files from an instance before it terminates.

Reference:

http://docs.aws.amazon.com/autoscaling/latest/userguide/lifecycle-hooks.html