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?

A. Change the data format from .csv to JSON format. Apply Snappy compression.

B. Compress the .csv files by using Snappy compression.

C. Change the data format from .csv to Apache Parquet. Apply Snappy compression.

D. Compress the .csv files by using gzip compression.








 

Suggested Answer: D

Community Answer: C




This question is in DEA-C01 AWS Certified Data Analytics – Specialty Exam
For getting AWS Certified Data Analytics – Specialty Certificate


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