Which service provides a fully managed Apache Spark environment?

Amazon EMR (Elastic MapReduce) is the service that provides a fully managed Apache Spark environment. It simplifies the process of running big data frameworks such as Apache Spark on AWS by automating the provisioning of the underlying infrastructure, cluster setup, configuration, and tuning. This allows users to focus on analyzing their data rather than managing the infrastructure.

With Amazon EMR, users can easily spin up clusters to process large amounts of data efficiently using Spark’s capabilities for distributed data processing. The service also integrates with other AWS services, facilitating a workflow that includes data storage options, data ingestion, and visualization, making it a powerful option for those needing to leverage Spark without the overhead of managing individual nodes and components.

The other services mentioned are designed for different functions. Amazon RDS (Relational Database Service) is primarily for relational database management, AWS Lambda is focused on serverless computing and running code in response to events without managing servers, and Amazon EC2 (Elastic Compute Cloud) provides raw computing resources that require manual setup and maintenance for Apache Spark environments. Thus, they do not provide the same level of managed services specifically for Apache Spark as Amazon EMR does.