AWS Certified Data Engineer - Associate

When dealing with VPC gateway endpoints for Amazon S3, it is crucial to verify that the VPC's route table includes the necessary routes for the gateway endpoint. This ensures that traffic intended for the S3 bucket is properly routed through the VPC endpoint instead of going out to the internet. Therefore, verifying and potentially updating the VPC's route table to include routes for the Amazon S3 VPC gateway endpoint is the correct solution to resolve the connection issue faced by the AWS Glue job.

The best solution for ensuring that data analysts can access data only for customers within the same country with the least operational effort is to register the S3 bucket as a data lake location in AWS Lake Formation. This service provides powerful data governance and fine-grained access control capabilities, including row-level security. By using Lake Formation’s row-level security features, you can easily define and enforce policies that restrict access to data based on specific conditions such as the country of the customer. This approach avoids the need for creating separate tables, views, or managing regional data migrations, thereby reducing operational overhead and complexity.

To minimize effort and time required to incorporate third-party datasets into an existing analytics platform, it is best to use API calls to access and integrate these datasets. AWS Data Exchange is designed specifically for discovering and subscribing to third-party datasets, providing direct and easy integration. This service effectively reduces operational overhead because it directly supports these types of integrations without the need for complex configurations or additional infrastructure. AWS DataSync, on the other hand, is primarily intended for data transfer between on-premises storage and AWS storage services, not for directly accessing third-party datasets through APIs.

To implement a data mesh that supports centralized data governance, data analysis, and data access control, the most appropriate combination of AWS services would be Amazon S3 for data storage and Amazon Athena for data analysis, along with AWS Lake Formation for centralized data governance and access control. Amazon S3 provides a scalable and cost-effective storage solution that is well-suited for large datasets, while Amazon Athena allows for serverless querying of data stored in S3 using SQL, facilitating data exploration and analysis without the need for managing infrastructure. AWS Lake Formation enhances governance by allowing the establishment of fine-grained access controls and ensuring data quality and compliance, aligning with the need for centralized governance in a data mesh.

Package the custom Python scripts into Lambda layers and apply these layers to the Lambda functions. Lambda layers allow for centralized management of shared code across multiple functions. Once the layer is updated with the new scripts, all the Lambda functions that use that layer will automatically inherit the updates, thus reducing manual efforts and ensuring consistency.