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| Section | Weight | Objectives |
|---|---|---|
| Design Secure Architectures | 30% | - Secure access to AWS resources
|
| Design High-Performing Architectures | 24% | - Performance scaling
|
| Design Resilient Architectures | 26% | - Highly available architecture
|
| Design Cost-Optimized Architectures | 20% | - Cost-effective resource selection
|
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NEW QUESTION # 589
A company has workloads that run on AWS. Each workload has a separate Amazon RDS database. A security audit finds that the company does not meet a requirement to rotate the RDS master user credentials every 30 days. Each RDS DB instance must also have a different set of credentials that are accessible only by the relevant application layer and by the team that supports the workload. Which solution will meet these requirements with the LEAST operational overhead?
Answer: D
Explanation:
AWS Secrets Manager can automatically rotate RDS master user credentials and store unique credentials for each database. By combining IAM policies with Secrets Manager resource policies, access to each secret can be restricted to the relevant application and support team.
This approach provides automated rotation and fine-grained access control with minimal operational overhead.
NEW QUESTION # 590
A company provides an API interface to customers so the customers can retrieve their financial information.
The company expects a larger number of requests during peak usage times of the year.
The company requires the API to respond consistently with low latency to ensure customer satisfaction. The company needs to provide a compute host for the API.
Which solution will meet these requirements with the LEAST operational overhead?
Answer: A
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. AWS Lambda is a serverless compute service that lets you run code without provisioning or managing servers. Lambda scales automatically based on the incoming requests, but it may take some time to initialize new instances of your function if there is a sudden increase in demand. This may result in high latency or cold starts for your API. To avoid this, you can use provisioned concurrency, which ensures that your function is initialized and ready to respond at any time. Provisioned concurrency also helps you achieve consistent low latency for your API by reducing the impact of scaling on performance. References: https://docs.aws.amazon.com/apigateway/latest/developerguide/http-api-develop- integrations-lambda.html https://docs.aws.amazon.com/lambda/latest/dg/configuration-concurrency.html
NEW QUESTION # 591
A company is running a multi-tier web application farm in a virtual private cloud (VPC) that is not connected to their corporate network. They are connecting to the VPC over the Internet to manage the fleet of Amazon EC2 instances running in both the public and private subnets. The Solutions Architect has added a bastion host with Microsoft Remote Desktop Protocol (RDP) access to the application instance security groups, but the company wants to further limit administrative access to all of the instances in the VPC.
Which of the following bastion host deployment options will meet this requirement?
Answer: B
Explanation:
The correct answer is to deploy a Windows Bastion host with an Elastic IP address in the public subnet and allow RDP access to bastion only from the corporate IP addresses.
A bastion host is a special purpose computer on a network specifically designed and configured to withstand attacks. If you have a bastion host in AWS, it is basically just an EC2 instance. It should be in a public subnet with either a public or Elastic IP address with sufficient RDP or SSH access defined in the security group. Users log on to the bastion host via SSH or RDP and then use that session to manage other hosts in the private subnets.
Deploying a Windows Bastion host on the corporate network that has RDP access to all EC2 instances in the VPC is incorrect since you do not deploy the Bastion host to your corporate network. It should be in the public subnet of a VPC.
Deploying a Windows Bastion host with an Elastic IP address in the private subnet, and restricting RDP access to the bastion from only the corporate public IP addresses is incorrect since it should be deployed in a public subnet, not a private subnet.
Deploying a Windows Bastion host with an Elastic IP address in the public subnet and allowing SSH access to the bastion from anywhere is incorrect. Since it is a Windows bastion, you should allow RDP access and not SSH as this is mainly used for Linux-based systems.
Reference:
https://docs.aws.amazon.com/quickstart/latest/linux-bastion/architecture.html Check out this Amazon VPC Cheat Sheet:
https://tutorialsdojo.com/amazon-vpc/
NEW QUESTION # 592
A company uses a set of Amazon EC2 instances to host a website. The website uses an Amazon S3 bucket to store images and media files.
The company wants to automate website infrastructure creation to deploy the website to multiple AWS Regions. The company also wants to provide the EC2 instances access to the S3 bucket so the instances can store and access data by using AWS Identity and Access Management (IAM).
Which solution will meet these requirements MOST securely?
Answer: B
Explanation:
The most secure solution for allowing EC2 instances to access an S3 bucket is by usingIAM roles. An IAM role can be created with an access policy that grants the required permissions (e.g., to read and write to the S3 bucket). The IAM role is then associated with the EC2 instances through anIAM instance profile.
By associating the role with the instances, the EC2 instances can securely assume the role and receive temporary credentials via the instance metadata service. This avoids the need to store credentials (such as access keys) on the instances or within the application, enhancing security and reducing the risk of credentials being exposed.
AWS CloudFormation can be used to automate the creation of the entire infrastructure, including EC2 instances, IAM roles, and associated policies.
AWS Reference:
IAM Roles for EC2 Instancesoutlines the use of IAM roles for secure access to AWS services.
AWS CloudFormation User Guidedetails how to create and manage resources using CloudFormation templates.
Why the other options are incorrect:
A . Save IAM access key in UserData: This is insecure because it involves storing long-term credentials in the instance user data, which can be exposed.
B . Store access keys in S3: This is also insecure, as it involves managing and distributing long-term credentials, which should be avoided.
D . Retrieve access keys via a script: This approach is unnecessarily complex and less secure than using IAM roles, which provide temporary credentials automatically.
NEW QUESTION # 593
A company collects data from a large number of participants who use wearabledevices.The company stores the data in an Amazon DynamoDB table and uses applications to analyze the data. The data workload is constant and predictable. The company wants to stay at or below its forecasted budget for DynamoDB.
Whihc solution will meet these requirements MOST cost-effectively?
Answer: D
Explanation:
This option is the most efficient because it uses provisioned mode, which is a read/write capacity mode for processing reads and writes on your tables that lets you specify how much read and write throughput you expect your application to perform1. It also specifies the read capacity units (RCUs) and write capacity units (WCUs), which are the amount of data your application needs to read or write per second. It also meets the requirement of staying at or below its forecasted budget for DynamoDB, as provisioned mode has lower costs than on-demand mode for predictable workloads. This solution meets the requirement of collecting data from a large number of participants who use wearable devices with a constant and predictable data workload. Option A is less efficient because it uses provisioned mode and DynamoDB Standard-Infrequent Access (DynamoDB Standard-IA), which is a storage class for infrequently accessed items that require milliseconds latency2. However, this does not meet the requirement of collecting data from a large number of participants who use wearable devices with a constant and predictable data workload, as DynamoDB Standard-IA is more suitable for items that are accessed less frequently than once every 30 days. Option C is less efficient because it uses on-demand mode, which is a read/write capacity mode that lets you pay only for what you use by automatically adjusting your table's capacity in response to changing demand3. However, this does not meet the requirement of staying at or below its forecasted budget for DynamoDB, as on-demand mode has higher costs than provisioned mode for predictable workloads. Option D is less efficient because it uses on-demand mode and specifies the RCUs and WCUs with reserved capacity, which is a way to reserve read and write capacity for your tables in exchange for discounted hourly rates. However, this does not meet the requirement of staying at or below its forecasted budget for DynamoDB, as on-demand mode has higher costs than provisioned mode for predictable workloads. Also, specifying RCUs and WCUs with reserved capacity is not possible with on-demand mode, as it only applies to provisioned mode.
NEW QUESTION # 594
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