AWS Certified Data Engineer – Associate (DEA-C01) — Question 30

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?

Answer options

• 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

Explanation

Choosing the FLEX execution class allows for cost savings as it uses spare capacity in AWS. The Spot Instance type may not be ideal for consistent daily jobs due to possible interruptions. The STANDARD execution class is more expensive, and selecting the latest version in the GlueVersion field does not directly impact cost efficiency.