A company has a primary Amazon S3 bucket that receives thousands of objects every day. The company needs to replicate these objects into several other S3 buckets from various AWS accounts. A solutions architect is designing a new AWS Lambda function that is triggered when an object is created in the main bucket and replicates the object into the target buckets. The objects do not need to be replicated in real time. There is concern that this function may impact other critical Lambda functions due to Lambda’s regional concurrency limit. How can the solutions architect ensure this new Lambda function will not impact other critical Lambda functions?

Topic #: - All AWS Certified Solutions Architect - Professional Questions

A. Set the new Lambda function reserved concurrency limit to ensure the executions do not impact other critical Lambda functions. Monitor existing critical Lambda functions with Amazon CloudWatch alarms for the Throttles Lambda metric.
B. Increase the execution timeout of the new Lambda function to 5 minutes. Monitor existing critical Lambda functions with Amazon CloudWatch alarms for the Throttles Lambda metric.
C. Configure S3 event notifications to add events to an Amazon SQS queue in a separate account. Create the new Lambda function in the same account as the SQS queue and trigger the function when a message arrives in the queue.
D. Ensure the new Lambda function implements an exponential backoff algorithm. Monitor existing critical Lambda functions with Amazon CloudWatch alarms for the Throttles Lambda metric.

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