A company runs a public three-Tier web application in a VPC The application runs on Amazon EC2 instances across multiple Availability Zones. The EC2 instances that run in private subnets need to communicate with a license server over the internet The company needs a managed solution that minimizes operational maintenance Which solution meets these requirements''

• A.Provision a NAT instance in a private subnet Modify each private subnet's route table with a default route that points to the NAT instance
• B.Provision a NAT gateway in a public subnet Modify each private subnet's route table with a default route that points to the NAT gateway
• C.Provision a NAT instance in a public subnet Modify each private subnets route table with a default route that points to the NAT instance
• D.Provision a NAT gateway in a private subnet Modify each private subnet's route table with a default route that points to the NAT gateway .

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Some of the company's customers are retrieving records frequently, leading to an increase in costs for the company. The company wants to limit retrieved requests in the future. The company also wants to ensure that if one customer reaches its retrieval limit other customers will not affected.
Which solution will meet these requirements?

• A.Set up server-side throttling limits for API Gateway.
• B.Set up AWS Budgets. Monitor the usage of API Gateway and DynamoDB Configure an alarm to provide an alert when the cost exceeds a certain threshold each month
• C.Set up a usage plan for API Gateway Implement throttling limits tor each customer. and distribute API keys to each customer
• D.Limit DynamoDB read throughput on the table lo an amount that results m the maximum cost that the company is willing to incur.

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A company hosts a three-tier web application that includes a PostgreSQL database The database stores the metadata from documents The company searches the metadata for key terms to retrieve documents that the company reviews in a report each month The documents are stored in Amazon S3 The documents are usually written only once, but they are updated frequency The reporting process takes a few hours with the use of relational queries The reporting process must not affect any document modifications or the addition of new documents.
What are the MOST operationally efficient solutions that meet these requirements? (Select TWO )

• A.Set up a new Amazon DocumentDB (with MongoDB compatibility) cluster that includes a read replica Scale the read replica to generate the reports.
• B.Set up a new Amazon Aurora PostgreSQL DB cluster that includes a Reserved Instance and an Aurora Replica issue queries to the Aurora Replica to generate the reports.
• C.Set up a new Amazon RDS for PostgreSQL Multi-AZ Reserved Instance Configure the reporting module to query the secondary RDS node so that the reporting module does not affect the primary node
• D.Set up a new Amazon DynamoDB table to store the documents Use a fixed write capacity to support new document entries Automatically scale the read capacity to support the reports
• E.Set up a new Amazon RDS for PostgreSQL Reserved Instance and an On-Demand read replica Scale the read replica to generate the reports

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An application running on an Amazon EC2 instance needs to access an Amazon DynamoDB table Both the EC2 instance and the DynamoDB table are in the same AWS account A solutions architect must configure the necessary permissions Which solution will allow least privilege access to the DynamoDB table from the EC2 instance?

• A.Create an IAM user with the appropriate policy to allow access to the DynamoDB table Store the credentials in an Amazon S3 bucket and read them from within the application code directly
• B.Create an IAM role with the appropriate policy to allow access to the DynamoDB table Add the EC2 instance to the trust relationship policy document to allow it to assume the role
• C.Create an IAM role with the appropriate policy to allow access to the DynamoDB table Create an instance profile to assign this IAM role to the EC2 instance
• D.Create an IAM user with the appropriate policy to allow access to the DynamoDB table Ensure that the application stores the IAM credentials securely on local storage and uses them to make the DynamoDB calls

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A solutions architect is optimizing a website for an upcoming musical event Videos of the performances will be streamed in real time and then will be available on demand The event is expected to attract a global online audience Which service will improve the performance of both the real-time and on-demand streaming?

• A.Amazon CloudFront
• B.Amazon Route 53
• C.Amazon S3 Transfer Acceleration
• D.AWS Global Accelerator

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