- (Exam Topic 3)
A company runs a containerized application on a Kubernetes cluster in an on-premises data center. The company is using a MongoDB database for data storage.
The company wants to migrate some of these environments to AWS, but no code changes or deployment method changes are possible at this time. The company needs a solution that minimizes operational overhead.
Which solution meets these requirements?

1. A. Use Amazon Elastic Container Service (Amazon ECS) with Amazon EC2 worker nodes for compute and MongoDB on EC2 for data storage.
2. B. Use Amazon Elastic Container Service (Amazon ECS) with AWS Fargate for compute and Amazon DynamoDB for data storage.
3. C. Use Amazon Elastic Kubernetes Service (Amazon EKS) with Amazon EC2 worker nodes for compute and Amazon DynamoDB for data storage.
4. D. Use Amazon Elastic Kubernetes Service (Amazon EKS) with AWS Fargate for compute and Amazon DocumentDB (with MongoDB compatibility) for data storage.

Correct Answer: D
Amazon DocumentDB (with MongoDB compatibility) is a fast, reliable, and fully managed database service. Amazon DocumentDB makes it easy to set up, operate, and scale MongoDB-compatible databases in the cloud. With Amazon DocumentDB, you can run the same application code and use the same drivers and tools that you use with MongoDB.
https://docs.aws.amazon.com/documentdb/latest/developerguide/what-is.html

- (Exam Topic 3)
A company uses a payment processing system that requires messages for a particular payment ID to be received in the same order that they were sent Otherwise, the payments might be processed incorrectly.
Which actions should a solutions architect take to meet this requirement? (Select TWO.)

1. A. Write the messages to an Amazon DynamoDB table with the payment ID as the partition key
2. B. Write the messages to an Amazon Kinesis data stream with the payment ID as the partition key.
3. C. Write the messages to an Amazon ElastiCache for Memcached cluster with the payment ID as the key
4. D. Write the messages to an Amazon Simple Queue Service (Amazon SQS) queue Set the message attribute to use the payment ID
5. E. Write the messages to an Amazon Simple Queue Service (Amazon SQS) FIFO queu
6. F. Set the message group to use the payment ID.

Correct Answer: AE

- (Exam Topic 2)
A reporting team receives files each day in an Amazon S3 bucket. The reporting team manually reviews and copies the files from this initial S3 bucket to an analysis S3 bucket each day at the same time to use with Amazon QuickSight. Additional teams are starting to send more files in larger sizes to the initial S3 bucket.
The reporting team wants to move the files automatically analysis S3 bucket as the files enter the initial S3 bucket. The reporting team also wants to use AWS Lambda functions to run pattern-matching code on the copied data. In addition, the reporting team wants to send the data files to a pipeline in Amazon SageMaker Pipelines.
What should a solutions architect do to meet these requirements with the LEAST operational overhead?

1. A. Create a Lambda function to copy the files to the analysis S3 bucke
2. B. Create an S3 event notification for the analysis S3 bucke
3. C. Configure Lambda and SageMaker Pipelines as destinations of the event notificatio
4. D. Configure s30bjectCreated:Put as the event type.
5. E. Create a Lambda function to copy the files to the analysis S3 bucke
6. F. Configure the analysis S3 bucket to send event notifications to Amazon EventBridge (Amazon CloudWatch Events). Configure an ObjectCreated rule in EventBridge (CloudWatch Events). Configure Lambda and SageMaker Pipelines as targets for the rule.
7. G. Configure S3 replication between the S3 bucket
8. H. Create an S3 event notification for the analysis S3 bucke
9. I. Configure Lambda and SageMaker Pipelines as destinations of the event notificatio
10. J. Configure s30bjectCreated:Put as the event type.
11. K. Configure S3 replication between the S3 bucket
12. L. Configure the analysis S3 bucket to send event notifications to Amazon EventBridge (Amazon CloudWatch Events). Configure an ObjectCreated rule in EventBridge (CloudWatch Events). Configure Lambda and SageMaker Pipelines as targets for the rule.

Correct Answer: A

- (Exam Topic 2)
A company runs a global web application on Amazon EC2 instances behind an Application Load Balancer The application stores data in Amazon Aurora. The company needs to create a disaster recovery solution and can tolerate up to 30 minutes of downtime and potential data loss. The solution does not need to handle the load when the primary infrastructure is healthy
What should a solutions architect do to meet these requirements?

1. A. Deploy the application with the required infrastructure elements in place Use Amazon Route 53 to configure active-passive failover Create an Aurora Replica in a second AWS Region
2. B. Host a scaled-down deployment of the application in a second AWS Region Use Amazon Route 53 to configure active-active failover Create an Aurora Replica in the second Region
3. C. Replicate the primary infrastructure in a second AWS Region Use Amazon Route 53 to configure active-active failover Create an Aurora database that is restored from the latest snapshot
4. D. Back up data with AWS Backup Use the backup to create the required infrastructure in a second AWS Region Use Amazon Route 53 to configure active-passive failover Create an Aurora second primary instance in the second Region

Correct Answer: A
https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover-types.html

- (Exam Topic 3)
An application that is hosted on Amazon EC2 instances needs to access an Amazon S3 bucket Traffic must not traverse the internet How should a solutions architect configure access to meet these requirements?

1. A. Create a private hosted zone by using Amazon Route 53
2. B. Set up a gateway VPC endpoint for Amazon S3 in the VPC
3. C. Configure the EC2 instances to use a NAT gateway to access the S3 bucket
4. D. Establish an AWS Site-to-Site VPN connection between the VPC and the S3 bucket

Correct Answer: B