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Professionals who earn the AWS Certified Developer - Associate certification can expect to have a wide range of career opportunities available to them. AWS Certified Developer - Associate certification is recognized by organizations around the world as a standard of excellence in cloud computing and application development. It can help professionals to stand out in a crowded job market and demonstrate their commitment to staying up-to-date with the latest trends and technologies in the field.
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NEW QUESTION # 16
A company has a multi-node Windows legacy application that runs on premises. The application uses a network shared folder as a centralized configuration repository to store configuration files in .xml format. The company is migrating the application to Amazon EC2 instances. As part of the migration to AWS, a developer must identify a solution that provides high availability for the repository.
Which solution will meet this requirement MOST cost-effectively?
Answer: B
Explanation:
Amazon S3 is a service that provides highly scalable, durable, and secure object storage. The developer can create an S3 bucket to host the repository and migrate the existing .xml files to the S3 bucket. The developer can update the application code to use the AWS SDK to read and write configuration files from S3. This solution will meet the requirement of high availability for the repository in a cost-effective way.
References:
* [Amazon Simple Storage Service (S3)]
* [Using AWS SDKs with Amazon S3]
NEW QUESTION # 17
A developer is migrating a containerized application from an on-premises environment to the AWS Cloud. The developer is using the AWS CDK to provision a container in Amazon ECS on AWS Fargate. The container is behind an Application Load Balancer (ALB).
When the developer deploys the stack, the deployment fails because the ALB fails health checks. The developer needs to resolve the failed health checks.
Which solutions will meet this requirement? (Select TWO.)
Answer: D,E
Explanation:
* Option B:Thetarget group portin the ALB must match the port specified in the ECS task definition. If there is a mismatch, the ALB health check will fail since it cannot correctly route traffic to the container.
* Option E:The ALB listener must have a default action that forwards requests to the correct target group associated with the ECS service. If this configuration is missing, the health check will fail as no traffic is routed to the service.
* Option Ais irrelevant to resolving health check issues since capacity providers relate to provisioning compute capacity.
* Option C(hosted zone) is not directly related to ALB health checks.
* Option D(redirecting traffic) is not related to ECS health check configurations.
NEW QUESTION # 18
A developer is troubleshooting an application mat uses Amazon DynamoDB in the uswest-2 Region. The application is deployed to an Amazon EC2 instance. The application requires read-only permissions to a table that is named Cars The EC2 instance has an attached IAM role that contains the following IAM policy.
When the application tries to read from the Cars table, an Access Denied error occurs.
How can the developer resolve this error?
Answer: A
Explanation:
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/access-control-overview.html#access-control-resource-ownership
NEW QUESTION # 19
A developer is working on an application that uses a microservices architecture. The developer needs to grant an AWS Lambda function access to make calls to an Amazon API Gateway HTTP API. The HTTP API requires authentication.
Which solution will meet these requirements?
Answer: D
Explanation:
For service-to-service calls inside AWS, the simplest and most secure way to authenticate a caller (Lambda) to an API Gateway HTTP API is to use IAM authorization. When IAM auth is enabled on a route, API Gateway requires requests to be signed with AWS Signature Version 4 (SigV4). The calling Lambda function can sign the request using the AWS SDK (or SigV4 utilities) and its execution role credentials.
With this approach, you grant the Lambda function's execution role explicit permission to invoke the API by allowing the execute-api:Invoke action on the API's ARN. API Gateway then evaluates the SigV4-signed request against IAM to decide whether to authorize the call. This creates a clean, auditable permission model and avoids embedding static secrets.
Option A is incorrect and overly complex: JWT authorizers are typically used for end-user or workload identities from an OIDC/JWT provider; creating an IAM IdP is not how you enable JWT authorizers for HTTP APIs, and it does not directly solve Lambda-to-API authentication. Option C (API keys) is not considered an authentication mechanism for HTTP APIs in the same way; API keys are primarily for usage plans/throttling (and are more common with REST APIs). Storing an API key in environment variables is also weaker than IAM-based, short-lived credentials. Option D is backwards: a Lambda resource-based policy controls who can invoke the Lambda function, not who can call an API Gateway endpoint.
Therefore, B is the correct solution: enable IAM authorization on the HTTP API route and grant the Lambda function's IAM role permission to invoke the API (and sign requests with SigV4).
NEW QUESTION # 20
A company is migrating an on-premises database to Amazon RDS for MySQL. The company has read- heavy workloads. The company wants to refactor the code to achieve optimum read performance for queries.
Which solution will meet this requirement with LEAST current and future effort?
Answer: A
Explanation:
https://aws.amazon.com/rds/features/read-replicas/
NEW QUESTION # 21
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