# AWS-Certified-Data-Engineer---Associate-DEA-C01 — Question 425

**Type:** multiple_choice
**Topics:** topic_1

## Question

A data engineer needs to create an AWS Lambda function that converts the format of data from .csv to Apache Parquet. The Lambda function must run only if a user uploads a .csv file to an Amazon S3 bucket.
Which solution will meet these requirements with the LEAST operational overhead?

## Correct Answer

_See scenario._

## Explanation

Selected Answer: A
"only if a user uploads data to an Amazon S3 bucket" that excludes B & C because we need s3:ObjectCreated:*

You don't need SNS for S3 event notifications so A is easier.

**Reference:** examtopics_top_comment

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Source: https://hiexam.net/q/amazon/AWS-Certified-Data-Engineer---Associate-DEA-C01/425  
Practice (tracked): https://hiexam.net/study/AWS-Certified-Data-Engineer---Associate-DEA-C01/practice