DVA-C02 Examinations Actual Questions, DVA-C02 Dumps Torrent

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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.

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Amazon AWS Certified Developer - Associate Sample Questions (Q17-Q22):

NEW QUESTION # 17
A developer is creating a web application. The developer needs to store, retrieve, and rotate database credentials, OAuth tokens, and API keys.
The credentials, OAuth tokens, and API keys must be stored securely as secrets and must not be hardcoded in the application source code. The secrets must be automatically rotated every 6 months.
What should the developer do to meet these requirements?

Answer: C

Explanation:
AWS best practice is to store sensitive values like database passwords, OAuth tokens, and API keys in a dedicated secrets service rather than in source code or configuration files. AWS Secrets Manager is specifically designed for this use case: secure storage, retrieval through APIs/SDKs, fine-grained IAM access control, encryption at rest, auditing through CloudTrail, and-critically-built-in secret rotation.
AWS documentation describes Secrets Manager rotation as an automated process that uses a rotation schedule and typically invokes a Lambda function to update the secret in both Secrets Manager and the target system (for example, a database). The rotation schedule can be configured to a custom interval, including every 6 months, satisfying the requirement.
Option A is incorrect because AWS KMS manages encryption keys, not application secrets. KMS key rotation rotates KMS keys, not database credentials or API tokens.
Option B is incorrect because ACM manages TLS certificates, not arbitrary secrets like API keys and OAuth tokens.
Option C is incorrect because EventBridge can schedule events, but it is not a secrets storage service and does not provide secure secret lifecycle management and integrated rotation workflows by itself.
Therefore, storing secrets in AWS Secrets Manager and enabling automatic rotation with a 6-month schedule is the correct solution.


NEW QUESTION # 18
A company is developing a software as a service (SaaS) platform that serves both enterprise users and individual users. The application stores files in Amazon S3, uses Amazon RDS for databases, and uses AWS Lambda functions to perform backend processing.
The company needs a scalable and secure solution to give users the ability to authenticate by using corporate credentials and popular social identity providers (IdPs).
Which solution will meet these requirements?

Answer: C

Explanation:
Amazon Cognito supports federated authentication with corporate (SAML/OIDC) and social identity providers, providing scalable user management and secure access via temporary credentials and JWTs. This meets the requirements for scalable, secure authentication and role- based access control.


NEW QUESTION # 19
A developer at a company recently created a serverless application to process and show data from business reports. The application's user interface (UI) allows users to select and start processing the files. The Ul displays a message when the result is available to view. The application uses AWS Step Functions with AWS Lambda functions to process the files. The developer used Amazon API Gateway and Lambda functions to create an API to support the UI.
The company's Ul team reports that the request to process a file is often returning timeout errors because of the see or complexity of the files. The Ul team wants the API to provide an immediate response so that the Ul can deploy a message while the files are being processed. The backend process that is invoked by the API needs to send an email message when the report processing is complete.
What should the developer do to configure the API to meet these requirements?

Answer: D

Explanation:
This solution allows the API to invoke the Lambda function asynchronously, which means that the API will return an immediate response without waiting for the function to complete. The X-Amz-Invocation-Type header specifies the invocation type of the Lambda function, and setting it to 'Event' means that the function will be invoked asynchronously. The function can then use Amazon Simple Email Service (SES) to send an email message when the report processing is complete.
Reference: [Asynchronous invocation], [Set up Lambda proxy integrations in API Gateway]


NEW QUESTION # 20
An application uses an Amazon DynamoDB table to manage user profiles. A UserID attribute is the primary key of the table. The table also includes columns named Username, EmailAddress, RegistrationDate, Location, and Status.
The application needs to display a list of users from a specific location who registered after a specific date. Queries on the table must be optimized for efficiency.
Which solution will meet these requirements?

Answer: A

Explanation:
Creating a global secondary index (GSI) with Location as the partition key and RegistrationDate as the sort key enables efficient querying by location and registration date using the Query operation. This avoids costly scans and supports the required filtering.


NEW QUESTION # 21
A developer needs temporary access to resources in a second account.
What is the MOST secure way to achieve this?

Answer: C


NEW QUESTION # 22
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