Given the following AWS CloudFormation template:

What is the MOST efficient way to reference the new Amazon S3 bucket from another AWS CloudFormation template?

• A.Create a custom AWS CloudFormation resource that gets the bucket name from the ContentBucket resource of the first stack.
• B.Add Exported: True to the ContentBucket in the original template and use ImportResource in other templates.
• C.Add an Export declaration to the outputs section of the original template and use ImportValue in other templates.
• D.Use Fn: : Include to include the existing template in other template and use the ContentBucket resource directly

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A developer must modify an Alexa skill backed by an AWS Lambda function to access an Amazon DynamoDB table in a second account A role in the second account has been created with permissions to access the table How should the table be accessed?

• A.Assume the new role in the Lambda function when accessing the table
• B.Modify the Lambda function execution role's permissions to include the new role
• C.Change the Lambda function execution role to be the new role
• D.Store the access key and the secret key for the new role and use them when accessing the table

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A developer wants the ability to roll back to a previous version of an AWS Lambda function in the event of errors caused by a new deployment.
How can the developer achieve this with MINIMAL impact on users?

• A.Do not make any changes to the application Deploy the new version of the code. If too many errors are encountered, point the application back to the previous version using the version number in the Amazon Resource Name (ARN)
• B.Change the application to use an alias that points to the current version Deploy the new version of the code Update the alias to use the newly deployed version. If too many errors are encountered, point the alias back to the previous version
• C.Create three aliases: new, existing, and router Point the existing alias to the current version Have the router alias direct 100% of users to the existing alias Update the application to use the router alias Deploy the new version of the code Point the new alias to this version Update the router alias to direct
  10% of users to the new alias If too many errors are encountered, send 100% of traffic to the existing alias
• D.Change the application to use an alias that points to the current version Deploy the new version of the code. Update the alias to direct 10% of users to the newly deployed version. If too many errors are encountered, send 100% of traffic to the previous version

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A company has an application that logs all information to Amazon S3. Whenever there is a new log file, an AWS Lambda function is invoked to process the log files. The code works, gathering all of the necessary information. However, when checking the Lambda function logs, duplicate entries with the same request ID are found.
What is causing the duplicate entries?

• A.The S3 bucket name was specified incorrectly.
• B.The Lambda function failed, and the Lambda service retired the invocation with a delay.
• C.There was an S3 outage, which caused duplicate entries of the sale log file.
• D.The application stopped intermittently and then resumed.

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When using a large Scan operation in DynamoDB, what technique can be used to minimize the impact of a scan on a table's provisioned throughput?

• A.Use parallel scans
• B.Prewarm the table by updating all items
• C.Define a range index on the table
• D.Set a smaller page size for the scan

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