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Amazon AWS Certified Developer - Associate Sample Questions (Q43-Q48):

NEW QUESTION # 43
An application that is hosted on an Amazon EC2 instance needs access to files that are stored in an Amazon S3 bucket. The application lists the objects that are stored in the S3 bucket and displays a table to the user. During testing, a developer discovers that the application does not show any objects in the list.
What is the MOST secure way to resolve this issue?

• A. Update the S3 bucket policy by including the S3:ListBucket permission and by setting the Principal element to specify the account number of the EC2 instance.
• B. Update the developer's user permissions to include the S3:ListBucket permission for the S3 bucket.
• C. Update the IAM instance profile that is attached to the EC2 instance to include the S3:ListBucket permission for the S3 bucket.
• D. Update the IAM instance profile that is attached to the EC2 instance to include the S3:* permission for the S3 bucket.

Answer: C
NEW QUESTION # 44
A developer is migrating some features from a legacy monolithic application to use AWS Lambda functions instead. The application currently stores data in an Amazon Aurora DB cluster that runs in private subnets in a VPC. The AWS account has one VPC deployed. The Lambda functions and the DB cluster are deployed in the same AWS Region in the same AWS account.
The developer needs to ensure that the Lambda functions can securely access the DB cluster without crossing the public internet.
Which solution will meet these requirements?

• A. Configure the DB cluster's public access setting to Yes.
• B. Configure the VPC, subnets, and a security group for the Lambda functions.
• C. Configure an Amazon RDS database proxy for he Lambda functions.
• D. Configure a NAT gateway and a security group for the Lambda functions.

Answer: B
NEW QUESTION # 45
For a deployment using AWS Code Deploy, what is the run order of the hooks for in-place deployments?

• A. BeforeInstall -> ApplicationStop -> ValidateService -> ApplicationStart
• B. ApplicationStop -> BeforeInstall -> ValidateService -> ApplicationStart
• C. BeforeInstall -> ApplicationStop -> ApplicationStart -> AfterInstall
• D. ApplicationStop -> BeforeInstall -> AfterInstall -> ApplicationStart

Answer: C
NEW QUESTION # 46
A developer has written an AWS Lambda function. The function is CPU-bound. The developer wants to ensure that the function returns responses quickly.
How can the developer improve the function's performance?

• A. Increase the function's CPU core count.
• B. Increase the function's reserved concurrency.
• C. Increase the function's timeout.
• D. Increase the function's memory.

Answer: D
NEW QUESTION # 47
A company is migrating legacy internal applications to AWS. Leadership wants to rewrite the internal employee directory to use native AWS services. A developer needs to create a solution for storing employee contact details and high-resolution photos for use with the new application.
Which solution will enable the search and retrieval of each employee's individual details and high-resolution photos using AWS APIs?

• A. Store employee contact information in an Amazon RDS DB instance with the photos stored in Amazon Elastic File System (Amazon EFS).
• B. Use Amazon Cognito user pools to implement the employee directory in a fully managed software-as-a-service (SaaS) method.
• C. Encode each employee's contact information and photos using Base64. Store the information in an Amazon DynamoDB table using a sort key.
• D. Store each employee's contact information in an Amazon DynamoDB table along with the object keys for the photos stored in Amazon S3.

Answer: D
NEW QUESTION # 48
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