dynamo questions limits with DynamoDB and S3.
SQS
SNS message format and corresponding API calls
CloudFormation template anatomy (different sections), only resources section is required for template to execute
CF intrinsic function types and usage.
LDAP authentication. Know when to use federated logins and tokens: http://docs.aws.amazon.com/IAM/latest/UserGuide/idrolescommon-scenariosfederated-users.html http://docs.aws.amazon.com/IAM/latest/UserGuide/idcredentials_temp.html