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When thinking of AWS Elastic Beanstalk, which statement is true?

A.
Worker tiers pull jobs from SNS.

B.
Worker tiers pull jobs from HTTP.

C.
Worker tiers pull jobs from JSON.

D.
Worker tiers pull jobs from SQS.

Explanation:
Elastic Beanstalk installs a daemon on each Amazon EC2 instance in the Auto Scaling group to process Amazon SQS
messages in the worker environment. The daemon pulls data off the Amazon SQS queue, inserts it into the message
body of an HTTP POST request, and sends it to a user-configurable URL path on the local host. The content type for the
message body within an HTTP POST request is application/json by default.
http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features-managing-env-tiers.html

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