AWS Certified Developer – Associate

An application must process each newly uploaded S3 object without polling. Which integration fits?

What should a Lambda function use to call an AWS API with temporary permissions?

Why should a consumer of retried events be idempotent?

A Lambda handler may be retried after a successful payment request times out. What application design reduces duplicate charges?

Where should a reusable SDK client normally be initialized in a Lambda application?

Which mechanism best limits a function's AWS API permissions?

An asynchronous operation fails repeatedly because of invalid input. What is preferable to unlimited immediate retries?

Which API Gateway response behavior is appropriate for an unsupported request format?

Why should application secrets be retrieved from a managed secret store?

Which DynamoDB operation can reject an update when an expected attribute value has changed?

What does DynamoDB Query require as its key access foundation?

Why is DynamoDB Scan often a poor default for a request needing one known item?

Which service supports tracing requests across instrumented application components?

Why include a correlation identifier in application logs?

Which deployment pattern directs a small fraction of traffic to a new version before expansion?

What is the benefit of a Lambda version and alias in a deployment process?

Which SDK error-handling strategy is appropriate for temporary throttling?

An SQS consumer deletes a message before completing its transaction. What risk is introduced?

Why should the SQS visibility timeout account for processing duration?

Which S3 feature grants time-limited access to a specific operation without sharing the signer's secret key?