AWS Certified Data Engineer - Associate DEA-C01 — Topic 1 Question 11

Question

A data engineer needs Amazon Athena queries to finish faster. The data engineer notices that all the files the Athena queries use are currently stored in uncompressed .csv format. The data engineer also notices that users perform most queries by selecting a specific column. Which solution will MOST speed up the Athena query performance?

Accepted Answer

Correct answer: C. The correct answer is C. Option C: Change the data format from.csv to Apache Parquet. Apply Snappy compression.

AWS Certified Data Engineer - Associate DEA-C01 — Question 11