Solutions Architect Professional (Page 123)

A company runs an unauthenticated static website (www.example.com) that includes a registration form for users.The website uses Amazon S3 for hosting and uses Amazon CloudFront as the content delivery network with AWS WAF configured.When the registration form is submitted, the website calls an Amazon API Gateway API endpoint that invokes an AWS Lambda function to process the payload and forward the payload to an external API call.During testing, a solutions architect encounters a cross-origin resource sharing (CORS) error.The solutions architect confirms that the CloudFront distribution origin has the Access-Control-Allow-Origin header set to www.example.com.What should the solutions architect do to resolve the error?Read More →

A company is hosting a critical application on a single Amazon EC2 instance.The application uses an Amazon ElastiCache for Redis single-node cluster for an in-memory data store.The application uses an Amazon RDS for MariaDB DB instance for a relational database.For the application to function, each piece of the infrastructure must be healthy and must be in an active state.A solutions architect needs to improve the application’s architecture so that the infrastructure can automatically recover from failure with the least possible downtime.Which combination of steps will meet these requirements? (Choose three.)Read More →

A company is running a traditional web application on Amazon EC2 instances.The company needs to refactor the application as microservices that run on containers.Separate versions of the application exist in two distinct environments: production and testing.Load for the application is variable, but the minimum load and the maximum load are known.A solutions architect needs to design the updated application with a serverless architecture that minimizes operational complexity.Which solution will meet these requirements MOST cost-effectively?Read More →

A company uses an AWS CloudFormation template to deploy an Amazon Elastic Container Service (Amazon ECS) service into a production environment.The template includes an Amazon S3 bucket that is named by using a common prefix with the CloudFormation stack name.The company uses the same template to create temporary environments for development and continuous integration.Developers can create environments successfully, but they receive errors from CloudFormation when they attempt to delete the environments.The developers often need to delete and recreate stacks with the same names as part of the development and testing process.Which combination of steps should a solutions architect take to modify the solution to resolve this issue? (Choose two.)Read More →

A company has a project that is launching Amazon EC2 instances that are larger than required.The project’s account cannot be part of the company’s organization in AWS Organizations due to policy restrictions to keep this activity outside of corporate IT.The company wants to allow only the launch of t3.smallEC2 instances by developers in the project’s account.These EC2 instances must be restricted to the us-east-2 Region.What should a solutions architect do to meet these requirements?Read More →

Amazon Elastic File System (EFS) provides information about the space used for an object by using the space _ used attribute of the Network File System Version4.1 (NFSv4.1).The attribute includes the object’s current metered data size and not the metadata size.Which of the following utilities will you use to measure the amount of disk that is used of a file?Read More →

A retail company is hosting an ecommerce website on AWS across multiple AWS Regions.The company wants the website to be operational at all times for online purchases.The website stores data in an Amazon RDS for MySQL DB instance.Which solution will provide the HIGHEST availability for the database?Read More →

You have written a CloudFormation template that creates 1 Elastic Load Balancer fronting 2 EC2 Instances.Which section of the template should you edit so that the DNS of the load balancer is returned upon creation of the stack?Read More →

A company provides auction services for artwork and has users across North America and Europe.The company hosts its application in Amazon EC2 instances in the us-east-1 Region.Artists upload photos of their work as large-size, high-resolution image files from their mobile phones to a centralized Amazon S3 bucket created in the us-east-1 Region.The users in Europe are reporting slow performance for their image uploads.How can a solutions architect improve the performance of the image upload process?Read More →

A fleet of Amazon ECS instances is used to poll an Amazon SQS queue and update items in an Amazon DynamoDB database.Items in the table are not being updated, and the SQS queue is filling up.Amazon CloudWatch Logs are showing consistent 400 errors when attempting to update the table.The provisioned write capacity units are appropriately configured, and no throttling is occurring.What is the LIKELY cause of the failure?Read More →