A company is developing a new machine learning model solution in AWS. The models are developed as independent microservices that fetch about 1 GB of model data from Amazon S3 at startup and load the data into memory. Users access the models through an asynchronous API. Users can send a request or a batch of requests and specify where the results should be sent.
The company provides models to hundreds of users. The usage patterns for the models are irregular Some models could be unused for days or weeks Other models could receive batches of thousands of requests at a time .
Which solution meets these requirements?

• A.The requests from the API are sent to the models Amazon Simple Queue Service (Amazon SQS) queue.
  Models are deployed as AWS Lambda functions triggered by SQS events AWS Auto Scaling is enabled on Lambda to increase the number of vCPUs based on the SQS queue size
• B.The requests from the API are sent to an Application Load Balancer (ALB) Models are deployed as AWS Lambda functions invoked by the ALB.
• C.The requests from the API are sent to the model's Amazon Simple Queue Service (Amazon SQS) queue.
  Models are deployed as Amazon Elastic Container Service (Amazon ECS) services reading from the queue AWS App Mesh scales the instances of the ECS cluster based on the SQS queue size'
• D.The requests from the API are sent to the models Amazon Simple Queue Service (Amazon SQS) queueModels are deployed as Amazon Elastic Container Service (Amazon ECS) services reading from the queue AWS Auto Scaling .s enabled on Amazon ECS for both the cluster and copies of the service based on the queue size.

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A company plans to move regulated and security-sensitive businesses to AWS. The Security team is developing a framework to validate the adoption of AWS best practices and industry-recognized compliance standards. The AWS Management Console is the preferred method for teams to provision resources.
Which strategies should a Solutions Architect use to meet the business requirements and continuously assess, audit, and monitor the configurations of AWS resources? (Choose two.)

• A.Use AWS Config rules to periodically audit changes to AWS resources and monitor the compliance of the configuration. Develop AWS Config custom rules using AWS Lambda to establish a test-driven development approach, and further automate the evaluation of configuration changes against the required controls.
• B.Use CloudTrail integration with Amazon SNS to automatically notify unauthorized API activities. Ensure that CloudTrail is enabled in all accounts and available AWS services. Evaluate the usage of Lambda functions to automatically revert non-authorized changes in AWS resources.
• C.Use Amazon CloudWatch Logs agent to collect all the AWS SDK logs. Search the log data using a pre- defined set of filter patterns that matches mutating API calls. Send notifications using Amazon CloudWatch alarms when unintended changes are performed. Archive log data by using a batch export to Amazon S3 and then Amazon Glacier for a long-term retention and auditability.
• D.Use AWS CloudTrail events to assess management activities of all AWS accounts. Ensure that CloudTrail is enabled in all accounts and available AWS services. Enable trails, encrypt CloudTrail event log files with an AWS KMS key, and monitor recorded activities with CloudWatch Logs.
• E.Use the Amazon CloudWatch Events near-real-time capabilities to monitor system events patterns, and trigger AWS Lambda functions to automatically revert non-authorized changes in AWS resources. Also, target Amazon SNS topics to enable notifications and improve the response time of incident responses.

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If I want an instance to have a public IP address, which IP address should I use?

• A.Elastic IP Address
• B.Dynamic IP Address
• C.Class A IP Address
• D.Class B IP Address

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In Amazon ElastiCache, which of the following statements is correct?

• A.When you launch an ElastiCache cluster into an Amazon VPC private subnet, every cache node is assigned a public IP address within that subnet.
• B.You cannot use ElastiCache in a VPC that is configured for dedicated instance tenancy.
• C.If your AWS account supports only the EC2-VPC platform, ElastiCache will never launch your cluster in a VPC.
• D.ElastiCache is not fully integrated with Amazon Virtual Private Cloud (VPC).

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An application is scanning an Amazon DynamoDB table that was created with default settings.
The application occasionally reads stale data when it queries the table.
How can this issue be corrected?

• A.Increase the provisioned read capacity of the table.
• B.Enable AutoScaling on the DynamoDB table.
• C.Update the application to use strongly consistent reads.
• D.Re-create the DynamoDB table with eventual consistency disabled.

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