DEA-C01 Question 430
Select 2You are designing a data processing pipeline for your organization. The team is debating whether to use Amazon EMR (Elastic MapReduce) or an EC2 cluster with open-source Apache Hadoop installed. Which of the following statements correctly describe the differences between managed services like Amazon EMR and unmanaged services like an EC2-based Hadoop cluster?
- A
Amazon EMR reduces the operational overhead by managing cluster provisioning, scaling, and patching, while an EC2-based Hadoop cluster requires you to handle these tasks manually.
- B
Amazon EMR is limited to running Hadoop workloads only, whereas an EC2-based Hadoop cluster supports a broader range of big data frameworks.
- C
With Amazon EMR, you can leverage spot instances to optimize costs, but this is not possible with an EC2-based Hadoop cluster.
- D
Amazon EMR integrates natively with other AWS services like S3, CloudWatch, and IAM, reducing the need for custom integrations compared to an EC2-based Hadoop cluster.
- E
Running an EC2-based Hadoop cluster is often more cost-effective than Amazon EMR because you avoid paying for the managed service overhead.
Show answer and explanation
Correct answers: A, D
Explanation
The key differences between managed services like Amazon EMR and unmanaged services like an EC2-based Hadoop cluster revolve around operational overhead and integrations. Managed services like EMR reduce the burden of cluster management by automating provisioning, scaling, and patching, while also providing native integrations with other AWS services. These advantages make managed services more efficient and easier to use for most organizations, despite their added cost.
- A. Correct.
Correct. Amazon EMR automates tasks like provisioning, scaling, and patching, reducing operational overhead. In contrast, an unmanaged EC2-based Hadoop cluster requires manual handling of these tasks.
- B. Incorrect.
Incorrect. Amazon EMR supports a variety of big data frameworks, including Apache Spark, Presto, and HBase, in addition to Hadoop. This is not a valid distinction.
- C. Incorrect.
Incorrect. Both Amazon EMR and an EC2-based Hadoop cluster allow the use of spot instances to optimize costs, so this statement is misleading.
- D. Correct.
Correct. Amazon EMR has built-in integrations with AWS services like S3 for storage, CloudWatch for monitoring, and IAM for access control, making it easier to use within the AWS ecosystem compared to setting up custom integrations for an EC2-based Hadoop cluster.
- E. Incorrect.
Incorrect. While unmanaged services like an EC2-based Hadoop cluster can sometimes appear more cost-effective, the additional operational overhead and potential for mismanagement often outweigh this perceived cost advantage.