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NEW QUESTION 52 A company has clients all across the globe that access product files stored in several S3 buckets, which are behind each of their own CloudFront web distributions. They currently want to deliver their content to a specific client, and they need to make sure that only that client can access the data. Currently, all of their clients can access their S3 buckets directly using an S3 URL or through their CloudFront distribution. The Solutions Architect must serve the private content via CloudFront only, to secure the distribution of files. Which combination of actions should the Architect implement to meet the above requirements? (Select TWO.)
A. Enable the Origin Shield feature of the Amazon CloudFront distribution to protect the files from unauthorized access.
B. Use S3 pre-signed URLs to ensure that only their client can access the files. Remove permission to use Amazon S3 URLs to read the files for anyone else.
C. Require the users to access the private content by using special CloudFront signed URLs or signed cookies.
D. Create a custom CloudFront function to check and ensure that only their clients can access the files.
E. Restrict access to files in the origin by creating an origin access identity (OAI) and give it permission to read the files in the bucket.
Answer: C,E
Explanation: Many companies that distribute content over the Internet want to restrict access to documents, business data, media streams, or content that is intended for selected users, for example, users who have paid a fee. To securely serve this private content by using CloudFront, you can do the following: - Require that your users access your private content by using special CloudFront signed URLs or signed cookies. - Require that your users access your Amazon S3 content by using CloudFront URLs, not Amazon S3 URLs. Requiring CloudFront URLs isn't necessary, but it is recommended to prevent users from bypassing the restrictions that you specify in signed URLs or signed cookies. You can do this by setting up an origin access identity (OAI) for your Amazon S3 bucket. You can also configure the custom headers for a private HTTP server or an Amazon S3 bucket configured as a website endpoint. All objects and buckets by default are private. The pre-signed URLs are useful if you want your user/customer to be able to upload a specific object to your bucket, but you don't require them to have AWS security credentials or permissions. You can generate a pre-signed URL programmatically using the AWS SDK for Java or the AWS SDK for .NET. If you are using Microsoft Visual Studio, you can also use AWS Explorer to generate a pre-signed object URL without writing any code. Anyone who receives a valid pre-signed URL can then programmatically upload an object. Hence, the correct answers are: - Restrict access to files in the origin by creating an origin access identity (OAI) and give it permission to read the files in the bucket. - Require the users to access the private content by using special CloudFront signed URLs or signed cookies. The option that says: Create a custom CloudFront function to check and ensure that only their clients can access the files is incorrect. CloudFront Functions are just lightweight functions in JavaScript for high-scale, latency-sensitive CDN customizations and not for enforcing security. A CloudFront Function runtime environment offers submillisecond startup times which allows your application to scale immediately to handle millions of requests per second. But again, this can't be used to restrict access to your files. The option that says: Enable the Origin Shield feature of the Amazon CloudFront distribution to protect the files from unauthorized access is incorrect because this feature is not primarily used for security but for improving your origin's load times, improving origin availability, and reducing your overall operating costs in CloudFront. The option that says: Use S3 pre-signed URLs to ensure that only their client can access the files. Remove permission to use Amazon S3 URLs to read the files for anyone else is incorrect. Although this could be a valid solution, it doesn't satisfy the requirement to serve the private content via CloudFront only to secure the distribution of files. A better solution is to set up an origin access identity (OAI) then use Signed URL or Signed Cookies in your CloudFront web distribution. References: https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/PrivateContent.html https://docs.aws.amazon.com/AmazonS3/latest/dev/PresignedUrlUploadObject.html Check out this Amazon CloudFront cheat sheet: https://tutorialsdojo.com/amazon-cloudfront/ S3 Pre-signed URLs vs CloudFront Signed URLs vs Origin Access Identity (OAI) https://tutorialsdojo.com/s3-pre-signed-urls-vs-cloudfront-signed-urls-vs-origin-access-identity-oai/ Comparison of AWS Services Cheat Sheets: https://tutorialsdojo.com/comparison-of-aws-services/
NEW QUESTION 53 A company runs an application using Amazon ECS. The application creates esi/ed versions of an original image and then makes Amazon S3 API calls to store the resized images in Amazon S3. How can a solutions architect ensure that the application has permission to access Amazon S3?
A. Create a security group that allows access from Amazon ECS to Amazon S3, and update the launch configuration used by the ECS cluster.
B. Create an IAM role with S3 permissions, and then specify that role as the taskRoleAm in the task definition.
C. Create an IAM user with S3 permissions, and then relaunch the Amazon EC2 instances for the ECS cluster while logged in as this account.
D. Update the S3 role in AWS IAM to allow read/write access from Amazon ECS, and then relaunch the container.
Answer: B
NEW QUESTION 54 A solutions architect is designing the architecture of a new application being deployed to the AWS Cloud. The application will run on Amazon EC2 On-Demand Instances and will automatically scale across multiple Availability Zones. The EC2 instances will scale up and down frequently throughout the day. An Application Load Balancer (ALB) will handle the load distribution. The architecture needs to support distributed session data management. The company is willing to make changes to code if needed. What should the solutions architect do to ensure that the architecture supports distributed session data management?
A. Use session affinity (sticky sessions) of the ALB to manage session data.
B. Use Amazon ElastiCache to manage and store session data.
C. Use Session Manager from AWS Systems Manager to manage the session.
D. Use the GetSessionToken API operation in AWS Security Token Service (AWS STS) to manage the session
Answer: B
Explanation: https://aws.amazon.com/vi/caching/session-management/ In order to address scalability and to provide a shared data storage for sessions that can be accessible from any individual web server, you can abstract the HTTP sessions from the web servers themselves. A common solution to for this is to leverage an In-Memory Key/Value store such as Redis and Memcached. ElastiCache offerings for In-Memory key/value stores include ElastiCache for Redis, which can support replication, and ElastiCache for Memcached which does not support replication.
NEW QUESTION 55 A Solutions Architect of a multinational gaming company develops video games for PS4, Xbox One, and Nintendo Switch consoles, plus a number of mobile games for Android and iOS. Due to the wide range of their products and services, the architect proposed that they use API Gateway. What are the key features of API Gateway that the architect can tell to the client? (Select TWO.)
A. Enables you to build RESTful APIs and WebSocket APIs that are optimized for serverless workloads.
B. Provides you with static anycast IP addresses that serve as a fixed entry point to your applications hosted in one or more AWS Regions.
C. You pay only for the API calls you receive and the amount of data transferred out.
D. Enables you to run applications requiring high levels of inter-node communications at scale on AWS through its custom-built operating system (OS) bypass hardware interface.
E. It automatically provides a query language for your APIs similar to GraphQL.
Answer: A,C
Explanation: Amazon API Gateway is a fully managed service that makes it easy for developers to create, publish, maintain, monitor, and secure APIs at any scale. With a few clicks in the AWS Management Console, you can create an API that acts as a "front door" for applications to access data, business logic, or functionality from your back-end services, such as workloads running on Amazon Elastic Compute Cloud (Amazon EC2), code running on AWS Lambda, or any web application. Since it can use AWS Lambda, you can run your APIs without servers. Amazon API Gateway handles all the tasks involved in accepting and processing up to hundreds of thousands of concurrent API calls, including traffic management, authorization and access control, monitoring, and API version management. Amazon API Gateway has no minimum fees or startup costs. You pay only for the API calls you receive and the amount of data transferred out. Hence, the correct answers are: - Enables you to build RESTful APIs and WebSocket APIs that are optimized for serverless workloads - You pay only for the API calls you receive and the amount of data transferred out. The option that says: It automatically provides a query language for your APIs similar to GraphQL is incorrect because this is not provided by API Gateway. The option that says: Provides you with static anycast IP addresses that serve as a fixed entry point to your applications hosted in one or more AWS Regions is incorrect because this is a capability of AWS Global Accelerator and not API Gateway. The option that says: Enables you to run applications requiring high levels of inter-node communications at scale on AWS through its custom-built operating system (OS) bypass hardware interface is incorrect because this is a capability of Elastic Fabric Adapter and not API Gateway. References: https://aws.amazon.com/api-gateway/ https://aws.amazon.com/api-gateway/features/ Check out this Amazon API Gateway Cheat Sheet: https://tutorialsdojo.com/amazon-api-gateway/ Tutorials Dojo's AWS Certified Solutions Architect Associate Exam Study Guide: https://tutorialsdojo.com/aws-certified-solutions-architect-associate/
NEW QUESTION 56 A company is hosting a web application on AWS using a single Amazon EC2 instance that stores user-uploaded documents in an Amazon EBS volume. For better scalability and availability, the company duplicated the architecture and created a second EC2 instance and EBS volume in another Availability Zone placing both behind an Application Load Balancer After completing this change, users reported that, each time they refreshed the website, they could see one subset of their documents or the other, but never all of the documents at the same time. What should a solutions architect propose to ensure users see all of their documents at once?
A. Configure the Application Load Balancer to send the request to both servers Return each document from the correct server.
B. Copy the data from both EBS volumes to Amazon EFS Modify the application to save new documents to Amazon EFS
C. Configure the Application Load Balancer to direct a user to the server with the documents
D. Copy the data so both EBS volumes contain all the documents.
Answer: B
Explanation: Amazon EFS provides file storage in the AWS Cloud. With Amazon EFS, you can create a file system, mount the file system on an Amazon EC2 instance, and then read and write data to and from your file system. You can mount an Amazon EFS file system in your VPC, through the Network File System versions 4.0 and 4.1 (NFSv4) protocol. We recommend using a current generation Linux NFSv4.1 client, such as those found in the latest Amazon Linux, Redhat, and Ubuntu AMIs, in conjunction with the Amazon EFS Mount Helper. For instructions, see Using the amazon-efs-utils Tools. For a list of Amazon EC2 Linux Amazon Machine Images (AMIs) that support this protocol, see NFS Support. For some AMIs, you'll need to install an NFS client to mount your file system on your Amazon EC2 instance. For instructions, see Installing the NFS Client. You can access your Amazon EFS file system concurrently from multiple NFS clients, so applications that scale beyond a single connection can access a file system. Amazon EC2 instances running in multiple Availability Zones within the same AWS Region can access the file system, so that many users can access and share a common data source.
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