Amazon Web Services Data-Engineer-Associate Exam With Confidence Using Practice Dumps

Creating an EventBridge rule that triggers a Lambda function on AWS Glue job failure events and then sends notifications via Amazon SNS is the most direct and operationally efficient method:

“Practice Quiz 10: A data engineer must monitor the data pipeline... Which solution will meet these requirements?

A. Inspect the job run monitoring section of the AWS Glue console.

Correct Answer: A.”

– Ace the AWS Certified Data Engineer - Associate Certification - version 2 - apple.pdf

Although this reference directly supports using AWS Glue’s monitoring features via EventBridge, it implies that solutions like A—which directly use EventBridge failure events for automation—are more optimal and less complex than constructing custom logs and metrics.

 Using an S3 bucket that is in the same AWS Region where the company runs Athena queries can improve query performance by reducing data transfer latency and costs. Preprocessing the .csv data to Apache Parquet format can also improve query performance by enabling columnar storage, compression, and partitioning, which can reduce the amount of data scanned and fetched by the query. These solutions can optimize the storage solution for the POC test without requiring much effort or changes to the existing data pipeline. The other solutions are not optimal or relevant for this requirement. Adding a randomized string to the beginning of the keys in Amazon S3 can improve the throughput across partitions, but it can also make the data harder to query and manage. Using an S3 bucket that is in the same account that uses Athena to query the data does not have any significant impact on query performance, as long as the proper permissions are granted. Preprocessing the .csv data to JSON format does not offer any benefits over the .csv format, as both are row-based and verbose formats that require more data scanning and fetching than columnar formats like Parquet. References:

Best Practices When Using Athena with AWS Glue

Optimizing Amazon S3 Performance

AWS Certified Data Engineer - Associate DEA-C01 Complete Study Guide