Which of the following statements about SQS is true?

• A.Messages will be delivered exactly once and messages will be delivered in First in, First out order
• B.Messages will be delivered exactly once and message delivery order is indeterminate
• C.Messages will be delivered one or more times and messages will be delivered in First in, First out order
• D.Messages will be delivered one or more times and message delivery order is indeterminate

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Which of the following are valid arguments for an SNS Publish request? Choose 3 answers

• A.TopicAm
• B.Subject
• C.Destination
• D.Format
• E.Message
• F.Language

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A company is using AWS CodePipeline to deliver one of its applications. The delivery pipeline is triggered by changes to the master branch of an AWS CodeCommit repository and uses AWS CodeBuild to implement the test and build stages of the process and AWS CodeDeploy to deploy the application.
The pipeline has been operating successfully for several months and there have been no modifications. Following a recent change to the application's source code, AWS CodeDeploy has not deployed the updates application as expected.
What are the possible causes? (Choose two.)

• A.The change was not made in the master branch of the AWS CodeCommit repository.
• B.One of the earlier stages in the pipeline failed and the pipeline has terminated.
• C.AWS CodePipeline does not have permissions to access AWS CodeCommit.
• D.One of the Amazon EC2 instances in the company's AWS CodePipeline cluster is inactive.
• E.The AWS CodePipeline is incorrectly configured and is not executing AWS CodeDeploy.

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A developer is testing a Docker-based application that uses the AWS SDK to interact with Amazon DynamoDB In the local development environment, the application has used IAM access keys The application is now ready for deployment onto an ECS duster.
How should the application authenticate with AWS services in production?

• A.Configure an ECS task IAM role for the application to use
• B.Configure AWS access key/secret access key environment variables with new credentials
• C.Refactor the application to call AWS STS AssumeRole based on an instance role
• D.Configure the credentials file with a new access key/secret access key

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You attempt to store an object in the US-STANDARD region in Amazon S3, and receive a confirmation that it has been successfully stored. You then immediately make another API call and attempt to read this object. S3 tells you that the object does not exist What could explain this behavior?

• A.US-STANDARD uses eventual consistency and it can take time for an object to be readable in a bucket
• B.Objects in Amazon S3 do not become visible until they are replicated to a second region.
• C.US-STANDARD imposes a 1 second delay before new objects are readable.
• D.You exceeded the bucket object limit, and once this limit is raised the object will be visible.

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