How can you secure data at rest on an EBS volume?

• A.Write the data randomly instead of sequentially.
• B.Use an encrypted file system on top of the BBS volume.
• C.Attach the volume to an instance using EC2's SSL interface.
• D.Create an IAM policy that restricts read and write access to the volume.
• E.Encrypt the volume using the S3 server-side encryption service.

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An e-commerce web application that shares session state on-premises is being migrated to AWS. The application must be fault tolerant, natively highly scalable, and any service interruption should not affect the user experience.
What is the best option to store the session state?

• A.Store the session state in Amazon ElastiCache
• B.Store the session state in Amazon CloudFront
• C.Store the session state in Amazon S3
• D.Enable session stickiness using elastic load balancers

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

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A developer needs to manage AWS infrastructure as code and must be able to deploy multiple identical copies of the infrastructure, stage changes, and revert to previous versions.
Which approach addresses these requirements?

• A.Use Amazon CloudWatch metrics and alerts along with resource tagging to deploy and manage the infrastructure.
• B.Use cost allocation reports and AWS OpsWorks to deploy and manage the infrastructure.
• C.Use AWS CloudFormation and AWS CodeCommit to deploy and manage the infrastructure.
• D.Use AWS Elastic Beanstalk and AWS CodeCommit to deploy and manage the infrastructure.

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Queries to an Amazon DynamoDB table are consuming a large amount of read capacity. The table has a significant number of large attributes. The application does not need all of the attribute data.
How can DynamoDB costs be minimized while maximizing application performance?

• A.Batch all the writes, and perform the write operations when no or few reads are being performed.
• B.Create a global secondary index with a minimum set of projected attributes.
• C.Implement exponential backoffs in the application.
• D.Load balance the reads to the table using an Application Load Balancer.

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