Question 1

A company hosts its applications in multiple private and public subnets in a VPC. The applications in the private subnets need to access an API. The API is available on the internet and is hosted in the company's onpremises data center. A solutions architect needs to establish connectivity for applications in the private subnets.Which solution will meet these requirements MOST cost-effectively?

Options :

A : Create a transit gateway to connect the VPC to the on-premises network. Use the transit gateway to route API calls from the private subnets to the on-premises data center.

B : Create a NAT gateway in the public subnet of the VPC. Use the NAT gateway to allow the private subnets to access the API over the internet.

C : Establish an AWS PrivateLink connection to connect the VPC to the on-premises network. Use PrivateLink to make API calls from the private subnets to the on-premises data center.

D : Implement an AWS Site-to-Site VPN connection between the VPC and the on-premises data center. Use the VPN connection to make API calls from the private subnets to the on-premises data center.

Answer: D

Question 2

The customers of a finance company request appointments with financial advisors by sending text messages.A web application that runs on Amazon EC2 instances accepts the appointment requests. The text messagesare published to an Amazon Simple Queue Service (Amazon SQS) queue through the web application.Another application that runs on EC2 instances then sends meeting invitations and meeting confirmationemail messages to the customers. After successful scheduling, this application stores the meeting informationin an Amazon DynamoDB database.As the company expands, customers report that their meeting invitations are taking longer to arrive.What should a solutions architect recommend to resolve this issue?

Options :

A : Add a DynamoDB Accelerator (DAX) cluster in front of the DynamoDB database.

B : Add an Amazon API Gateway API in front of the web application that accepts the appointment requests.

C : Add an Amazon CloudFront distribution. Set the origin as the web application that accepts the appointment requests.

D : Add an Auto Scaling group for the application that sends meeting invitations. Configure the Auto Scaling group to scale based on the depth of the SQS queue.

Answer: D

Question 3

A media company has an ecommerce website to sell music. Each music file is stored as an MP3 file. Premiumusers of the website purchase music files and download the files. The company wants to store music files onAWS. The company wants to provide access only to the premium users. The company wants to use the sameURL for all premium users.Which solution will meet these requirements?

Options :

A : Store the MP3 files on a set of Amazon EC2 instances that have Amazon Elastic Block Store (Amazon EBS) volumes attached. Manage access to the files by creating an IAM user and an IAM policy for each premium user.

B : Store all the MP3 files in an Amazon S3 bucket. Create a presigned URL for each MP3 file. Share the presigned URLs with the premium users.

C : Store all the MP3 files in an Amazon S3 bucket. Create an Amazon CloudFront distribution that uses the S3 bucket as the origin. Generate CloudFront signed cookies for the music files. Share the signed cookies with the premium users.

D : Store all the MP3 files in an Amazon S3 bucket. Create an Amazon CloudFront distribution that uses the S3 bucket as the origin. Use a CloudFront signed URL for each music file. Share the signed URLs with the premium users.

Answer: C

Question 4

A solutions architect is designing the architecture for a web application that has a frontend and a backend. The backend services must receive data from the frontend services for processing. The frontend must manage access to the application by using API keys. The backend must scale without affecting the frontend.Which solution will meet these requirements?

Options :

A : Deploy an Amazon API Gateway HTTP API as the frontend to direct traffic to an Amazon Simple Queue Service (Amazon SQS) queue. Use AWS Lambda functions as the backend to read from the queue

B : Deploy an Amazon API Gateway REST API as the frontend to direct traffic to an Amazon Simple Queue Service (Amazon SQS) queue. Use Amazon Elastic Container Service (Amazon ECS) on AWS Fargate as the backend to read from the queue.

C : Deploy an Amazon API Gateway REST API as the frontend to direct traffic to an Amazon Simple Notification Service (Amazon SNS) topic. Use AWS Lambda functions as the backend. Subscribe the Lambda functions to the topic.

D : Deploy an Amazon API Gateway HTTP API as the frontend to direct traffic to an Amazon Simple Notification Service (Amazon SNS) topic. Use Amazon Elastic Kubernetes Service (Amazon EKS) on AWS Fargate as the backend. Subscribe Amazon EKS to the topic.

Answer: A

Question 5

Question:A finance company collects streaming data for a real-time search and visualization system. They want tomigrate to AWS using a native solution for ingest, search, and visualization.Options:

Options :

A : Use EC2 to ingest/process data to S3 # Athena + Managed Grafana

B : Use EMR to ingest/process to Redshift # Redshift Spectrum + QuickSight

C : Use EKS to ingest/process to DynamoDB # CloudWatch Dashboards

D : Use Kinesis Data Streams # Amazon OpenSearch Service # Amazon QuickSight

Answer: D

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