Q7 — AWS DEA-C01 Ch.1

Question 7 of 100 | ← Chapter 1

A data engineer needs to schedule a workflow that runs a set of AWS Glue jobs every day. The data engineer does not require the Glue jobs to run or finish at a specific time. Which solution will run the Glue jobs in the MOST cost-effective way?

• A. Choose the FLEX execution class in the Glue job properties. ✓
• B. Use the Spot Instance type in Glue job properties.
• C. Choose the STANDARD execution class in the Glue job properties.
• D. Choose the latest version in the GlueVersion field in the Glue job properties.

Correct Answer: A. Choose the FLEX execution class in the Glue job properties.

Explanation

在考虑成本效益时，选择适当的执行类别是关键。AWSGlue提供了不同的执行类别，其中FLEX执行类别允许用户根据工作负载的需求动态地分配资源，这通常比固定资源分配（如STANDARD执行类别）更经济高效。使用Spot实例虽然可以降低成本，但它可能导致作业执行时间的不确定性，因为Spot实例可能会被AWS回收。选择Glue版本与成本效益无直接关系。因此，选择A（FLEX执行类别）是最具成本效益的解决方案。