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To prepare for the DVA-C02 Exam, candidates should have experience in developing applications using AWS services and technologies. They should be familiar with AWS SDKs, APIs, and command-line tools and have hands-on experience with AWS services such as Amazon EC2, Amazon S3, Amazon RDS, and Amazon SQS. Candidates can also benefit from taking AWS training courses, reading AWS documentation, and practicing with AWS services in a sandbox environment.
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Amazon DVA-C02 (AWS Certified Developer - Associate) Certification Exam is a valuable credential for professionals who want to specialize in developing and deploying applications on AWS. DVA-C02 exam covers a range of topics related to AWS development, including core services, application services, security, best practices, and troubleshooting. AWS Certified Developer - Associate certification is recognized globally and can help professionals advance their careers and increase their earning potential.
NEW QUESTION # 312
A developer has an application that stores data in an Amazon S3 bucket. The application uses an HTTP API to store and retrieve objects. When the PutObject API operation adds objects to the S3 bucket the developer must encrypt these objects at rest by using server-side encryption with Amazon S3 managed keys (SSE-S3).
Which solution will meet this requirement?
Answer: B
Explanation:
https://docs.aws.amazon.com/AmazonS3/latest/userguide/UsingServerSideEncryption.html
NEW QUESTION # 313
A developer has written the following IAM policy to provide access to an Amazon S3 bucket:
Which access does the policy allow regarding the s3:GetObject and s3:PutObject actions?
Answer: D
Explanation:
Explanation
The IAM policy shown in the image is a resource-based policy that grants or denies access to an S3 bucket based on certain conditions. The first statement allows access to any S3 action on any object in the
"DOC-EXAMPLE-BUCKET" bucket when the request is made over HTTPS (the value of aws:SecureTransport is true). The second statement denies access to the s3:GetObject and s3:PutObject actions on any object in the "DOC-EXAMPLE-BUCKET/secrets" prefix when the request is made over HTTP (the value of aws:SecureTransport is false). Therefore, the policy allows access on all objects in the
"DOC-EXAMPLE-BUCKET" bucket except on objects that start with "secrets". Reference: Using IAM policies for Amazon S3
NEW QUESTION # 314
A company has a serverless application that uses Amazon API Gateway and AWS Lambda functions to expose a RESTful API. The company uses a continuous integration and continuous delivery (CI/CD) workflow to deploy the application to multiple environments. The company wants to implement automated integration tests after deployment.
A developer needs to set up the necessary infrastructure and processes to automate the deployment and integration tests for the serverless application.
Answer: C
Explanation:
Comprehensive and Detailed Step-by-Step
Option C: Use AWS CodePipeline for CI/CD Workflow:
AWS CodePipeline automates the entire CI/CD pipeline, including build, deploy, and test stages. This minimizes manual effort and integrates well with AWS services.
API Gateway Stages: Represent different environments, such as dev, test, and prod, allowing isolated deployment and testing.
AWS CloudFormation Templates: Ensure that the infrastructure for Lambda and API Gateway is consistent across environments.
AWS CodeBuild for Automated Tests: Validates the deployments in each stage, ensuring integration and functionality are tested post-deployment.
Why Other Options Are Incorrect:
Option A and B: While using AWS SAM or CloudFormation for infrastructure management is valid, these options lack the fully automated CI/CD pipeline provided by CodePipeline.
Option D: Manually invoking Lambda functions using the AWS CLI introduces operational overhead and lacks the automation provided by CodePipeline.
Reference:
AWS CodePipeline Documentation
API Gateway Stages for CI/CD
NEW QUESTION # 315
A company has an AWS Step Functions state machine named myStateMachine. The company configured a service role for Step Functions. The developer must ensure that only the myStateMachine state machine can assume the service role.
Answer: A
Explanation:
Comprehensive Detailed Step by Step Explanation with All AWS Developer Reference:
To ensure that only a specific AWS Step Functions state machine (myStateMachine) can assume the service role, you must configure the correct trust policy in AWS IAM.
Trust Policies: Trust policies determine which entities (services or users) are allowed to assume the role. In this case, we want to restrict the trust policy to only allow the specific state machine (myStateMachine) to assume the role.
Using ArnLike: The condition "ArnLike" is used to specify that the SourceArn (which refers to the ARN of the entity assuming the role) must match a specific ARN. Option A specifies the exact ARN of the myStateMachine state machine, ensuring that only this state machine can assume the role.
Option B: This option is incorrect because it uses a wildcard (*) for the account ID, which would allow any state machine in the ap-south-1 region to assume the role, not just the specific one.
Reference:
AWS Step Functions IAM Policies
NEW QUESTION # 316
A developer is creating an AWS Lambda function that needs credentials to connect to an Amazon RDS for MySQL database. An Amazon S3 bucket currently stores the credentials. The developer needs to improve the existing solution by implementing credential rotation and secure storage. The developer also needs to provide integration with the Lambda function.
Which solution should the developer use to store and retrieve the credentials with the LEAST management overhead?
Answer: D
Explanation:
AWS Secrets Manager is a service that helps you protect secrets needed to access your applications, services, and IT resources. Secrets Manager enables you to store, retrieve, and rotate secrets such as database credentials, API keys, and passwords. Secrets Manager supports a secret type for RDS databases, which allows you to select an existing RDS database instance and generate credentials for it. Secrets Manager encrypts the secret using AWS Key Management Service (AWS KMS) keys and enables automatic rotation of the secret at a specified interval. A Lambda function can use the AWS SDK or CLI to retrieve the secret from Secrets Manager and use it to connect to the database. Reference: Rotating your AWS Secrets Manager secrets
NEW QUESTION # 317
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