AWS Certified Developer Associate DVA-C02 Practice Question
Which statement best describes how Amazon DynamoDB Streams can be integrated with AWS Lambda?
DynamoDB Streams configure Lambda functions to send Amazon S3 event notifications whenever new items are added to a table.
DynamoDB Streams automatically trigger a Lambda function to perform asynchronous writes to the table whenever an item is read.
DynamoDB Streams can invoke a Lambda function whenever new stream records appear, allowing the function to process item-level changes in near real time.
DynamoDB Streams are primarily used to start bulk backup operations by invoking a Lambda function only after a certain threshold of changes is reached.
When DynamoDB Streams is enabled on a table, every item-level change (INSERT, MODIFY, REMOVE) is written to the stream. AWS Lambda polls the stream and, for each batch of new stream records, invokes the configured function so that you can react to changes in near real time-such as updating derived data, sending notifications, or replicating updates elsewhere. The stream does not perform bulk backups, initiate writes when an item is merely read, or send Amazon S3 event notifications on its own.
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AWS Certified Developer Associate DVA-C02
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