AWS Certified Data Engineer - Associate DEA-C01 — Topic 1 Question 73

Question

A company receives a daily file that contains customer data in .xls format. The company stores the file in Amazon S3. The daily file is approximately 2 GB in size. A data engineer concatenates the column in the file that contains customer first names and the column that contains customer last names. The data engineer needs to determine the number of distinct customers in the file. Which solution will meet this requirement with the LEAST operational effort?

Accepted Answer

Correct answer: D. The correct answer is D. Option D: Use AWS Glue DataBrew to create a recipe that uses the COUNT_DISTINCT aggregate function to calculate the number of distinct customers. AWS Glue is a serverless ETL and data-catalog service that prepares and integrates data.

AWS Certified Data Engineer - Associate DEA-C01 — Question 73