A financial company is using a high-performance compute cluster running on Amazon EC2 instances to perform market simulations. A DNS record must be created in an Amazon Route 53 private hosted zone when instances start. The DNS record must be removed after instances are terminated. Currently the company uses a combination of Amazon CloudWatch Events and AWS Lambda to create the DNS record. The solution worked well in testing with small clusters, but in production with clusters containing thousands of instances the company sees the following error in the Lambda logs: HTTP 400 error (Bad request). The response header also includes a status code element with a value of `Throttling` and a status message element with a value of `Rate exceeded`. Which combination of steps should the Solutions Architect take to resolve these issues? (Choose three.)
Select 3 answers.
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