Amazon Web Services DVA-C02 Exam With Confidence Using Practice Dumps

AWS STS AssumeRole: The central operation for assuming temporary security credentials, commonly used for cross-account access.

MFA Integration: The AssumeRole call can include MFA information to enforce multi-factor authentication.

Credentials for S3 Access: The returned temporary credentials would provide the necessary permissions to access the S3 bucket in the other account.

References:

AWS STS AssumeRole Documentation: 

API Gateway Stages: Stages in API Gateway represent distinct environments (like PROD and DEV) allowing different configurations.

Stage Variables: Stage variables store environment-specific information, including Lambda function aliases.

Ease of Management: This solution offers a straightforward way to manage different Lambda function versions across environments.

References:

API Gateway Stages: 

API Gateway Stage Variables: 

The UnprocessedKeys element indicates that the BatchGetItem operation did not process all of the requested items in the current response. This can happen if the response size limit is exceeded or if the table’s provisioned throughput is exceeded. To handle this situation, the developer should retry the batch operation with exponential backoff and randomized delay to avoid throttling errors and reduce the load on the table. The developer should also use an AWS SDK to make the requests, as the SDKs automatically retry requests that return UnprocessedKeys.

References:

[BatchGetItem - Amazon DynamoDB]

[Working with Queries and Scans - Amazon DynamoDB]

[Best Practices for Handling DynamoDB Throttling Errors]