_________ is a fast, reliable, scalable, fully managed message queuing service?

Explanations:

AWS Data Pipeline is a web service designed for processing and moving data between different AWS compute and storage services. It is not a message queuing service.

Amazon SES (Simple Email Service) is a scalable email sending service, not a message queuing service.

Amazon SQS (Simple Queue Service) is a fully managed message queuing service that is fast, reliable, and scalable. It is designed for decoupling and scaling microservices and distributed systems.

Amazon SNS (Simple Notification Service) is a fully managed messaging service for sending notifications, not a message queuing service. It is more focused on pub/sub messaging, not queuing.