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NEW QUESTION # 228
A company is deploying AWS Lambda functions that access an Amazon RDS for PostgreSQL database. The company needs to launch the Lambda functions in a QA environment and in a production environment.
The company must not expose credentials within application code and must rotate passwords automatically.
Which solution will meet these requirements?
Answer: D
Explanation:
The best solution is to store the database credentials for both environments in AWS Secrets Manager with distinct key entry for the QA environment and the production environment. AWS Secrets Manager is a web service that can securely store, manage, and retrieve secrets, such as database credentials. AWS Secrets Manager also supports automatic rotation of secrets by using Lambda functions or built-in rotation templates. By storing the database credentials for both environments in AWS Secrets Manager, the company can avoid exposing credentials within application code and rotate passwords automatically. By providing a reference to the Secrets Manager key as an environment variable for the Lambda functions, the company can easily access the credentials from the code by using the AWS SDK. This solution meets all the requirements of the company.
NEW QUESTION # 229
A company is planning a large event where a promotional offer will be introduced. The company's website is hosted on AWS and backed by an Amazon RDS for PostgreSQL DB instance. The website explains the promotion and includes a sign-up page that collects user information and preferences. Management expects large and unpredictable volumes of traffic periodically, which will create many database writes. A solutions architect needs to build a solution that does not change the underlying data model and ensures that submissions are not dropped before they are committed to the database.
Which solution meets these requirements?
Answer: C
Explanation:
A is wrong because the volumes of traffic are unpredictable and you may not scale up appropriately.
C is wrong because changing to Dynamo is changing the underlying data model (relational to non-relational) D is wrong because using ElastiCache would not "increase write capacity to the DB instance".
Additionally even with high availability, in the event that the primary node in the Memcached cluster goes down, there can be data loss.
B can scale and would not be subject to such data loss.
NEW QUESTION # 230
A company needs to improve the security of its web-based application on AWS. The application uses Amazon CloudFront with two custom origins. The first custom origin routes requests to an Amazon API Gateway HTTP API. The second custom origin routes traffic to an Application Load Balancer (ALB) The application integrates with an OpenlD Connect (OIDC) identity provider (IdP) for user management.
A security audit shows that a JSON Web Token (JWT) authorizer provides access to the API The security audit also shows that the ALB accepts requests from unauthenticated users A solutions architect must design a solution to ensure that all backend services respond to only authenticated users Which solution will meet this requirement?
Answer: C
Explanation:
* Integrate ALB with OIDC IdP:
* In the AWS Management Console, navigate to the Application Load Balancer (ALB) settings.
* Configure the ALB to use the OpenID Connect (OIDC) IdP for authentication. This ensures that all requests routed through the ALB are authenticated using the IdP.
* Set Up Authentication Rules:
* Create a listener rule on the ALB that requires authentication. This rule will forward requests to the IdP for user authentication before allowing access to the backend services.
* Restrict Unauthenticated Access:
* Ensure the ALB only forwards requests to backend services if the user is authenticated.
Unauthenticated requests should be blocked or redirected to the IdP for authentication.
* Update CloudFront Configuration:
* Modify the CloudFront distribution to forward authenticated requests to the ALB. Ensure that the ALB and API Gateway accept only requests coming through the CloudFront distribution to enforce consistent authentication and security.
By enforcing authentication at the ALB level, you ensure that all backend services are accessed only by authenticated users, enhancing the overall security of the web application
NEW QUESTION # 231
A company has deployed an application on AWS Elastic Beanstalk. The application uses Amazon Aurora for the database layer. An Amazon CloudFront distribution serves web requests and includes the Elastic Beanstalk domain name as the origin server. The distribution is configured with an alternate domain name that visitors use when they access the application.
Each week, the company takes the application out of service for routine maintenance. During the time that the application is unavailable, the company wants visitors to receive an informational message instead of a CloudFront error message.
A solutions architect creates an Amazon S3 bucket as the first step in the process.
Which combination of steps should the solutions architect take next to meet the requirements? (Choose three.)
Answer: A,B,F
Explanation:
The company wants to serve static content from an S3 bucket during the maintenance period. To do this, the following steps are required:
* Upload static informational content to the S3 bucket. This will provide the source of the content that will be served to the visitors.
* Set the S3 bucket as a second origin in the original CloudFront distribution. Configure the distribution and the S3 bucket to use an origin access identity (OAI). This will allow CloudFront to access the S3 bucket securely and prevent public access to the bucket.
* During the weekly maintenance, edit the default cache behavior to use the S3 origin. Revert the change when the maintenance is complete. This will redirect all web requests to the S3 bucket instead of the Elastic Beanstalk domain name.
The other options are not correct because:
* Creating a new CloudFront distribution is not necessary and would require changing the alternate domain name configuration.
* Creating a cache behavior for the S3 origin on a new distribution would not work because the visitors would still access the original distribution using the alternate domain name.
* Configuring Elastic Beanstalk to serve traffic from the S3 bucket is not possible and would not achieve the desired result.
References:
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide
/DownloadDistS3AndCustomOrigins.html
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/private-content-restricting-access-to- s3.html
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/distribution-web-values-specify.
html#DownloadDistValuesPathPattern
NEW QUESTION # 232
A company is currently in the design phase of an application that will need an RPO of less than 5 minutes and an RTO of less than 10 minutes. The solutions architecture team is forecasting that the database will store approximately 10 TB of dat a. As part of the design, they are looking for a database solution that will provide the company with the ability to fail over to a secondary Region.
Which solution will meet these business requirements at the LOWEST cost?
Answer: C
Explanation:
The best solution is to deploy an Amazon RDS instance with a cross-Region read replica in a secondary Region. This will provide the company with a database solution that can fail over to the secondary Region in case of a disaster. The read replica will have minimal replication lag and can be promoted to become the primary in less than 10 minutes, meeting the RTO requirement. The RPO requirement of less than 5 minutes can also be met by using synchronous replication within the primary Region and asynchronous replication across Regions. This solution will also have the lowest cost compared to the other options, as it does not involve additional services or resources. Reference: [Amazon RDS User Guide], [Amazon Aurora User Guide]
NEW QUESTION # 233
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