PASS GUARANTEED 2025 AMAZON DVA-C02 NEWEST EXAM CRAM

Pass Guaranteed 2025 Amazon DVA-C02 Newest Exam Cram

Pass Guaranteed 2025 Amazon DVA-C02 Newest Exam Cram

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To become a certified AWS developer, you must pass the DVA-C02 certification exam. DVA-C02 exam consists of 65 multiple-choice and multiple-response questions and is scored on a scale of 100-1000. DVA-C02 exam covers a wide range of topics, including AWS core services, database services, security, and deployment. It is recommended that candidates have at least one year of experience developing applications in AWS before taking the exam.

Amazon DVA-C02 (AWS Certified Developer - Associate) Certification Exam is a sought-after certification for professionals who want to specialize in developing and deploying applications on AWS. DVA-C02 Exam is designed for individuals with at least one year of experience in developing and maintaining applications on the AWS platform. AWS Certified Developer - Associate certification validates the skills and knowledge required to build and deploy secure, scalable, and fault-tolerant applications on AWS.

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Amazon AWS Certified Developer - Associate Sample Questions (Q182-Q187):

NEW QUESTION # 182
A developer is designing an AWS Lambda function that creates temporary files that are less than 10 MB during invocation. The temporary files will be accessed and modified multiple times during invocation. The developer has no need to save or retrieve these files in the future.
Where should the temporary files be stored?

  • A. Amazon Elastic File System (Amazon EFS)
  • B. Amazon S3
  • C. Amazon Elastic Block Store (Amazon EBS)
  • D. the /tmp directory

Answer: D

Explanation:
Explanation
AWS Lambda is a service that lets developers run code without provisioning or managing servers. Lambda provides a local file system that can be used to store temporary files during invocation. The local file system is mounted under the /tmp directory and has a limit of 512 MB. The temporary files are accessible only by the Lambda function that created them and are deleted after the function execution ends. The developer can store temporary files that are less than 10 MB in the /tmp directory and access and modify them multiple times during invocation.
References:
[What Is AWS Lambda? - AWS Lambda]
[AWS Lambda Execution Environment - AWS Lambda]


NEW QUESTION # 183
A company notices that credentials that the company uses to connect to an external software as a service (SaaS) vendor are stored in a configuration file as plaintext.
The developer needs to secure the API credentials and enforce automatic credentials rotation on a quarterly basis.
Which solution will meet these requirements MOST securely?

  • A. Retrieve temporary credentials from AWS Security Token Service (AWS STS) every 15 minutes. Use the temporary credentials when users make API calls to the SaaS vendor.
  • B. Use AWS Key Management Service (AWS KMS) to encrypt the configuration file. Decrypt the configuration file when users make API calls to the SaaS vendor. Enable rotation.
  • C. Store the credentials in AWS Secrets Manager and enable rotation. Configure the API to have Secrets Manager access.
  • D. Store the credentials in AWS Systems Manager Parameter Store and enable rotation. Retrieve the credentials when users make API calls to the SaaS vendor.

Answer: C

Explanation:
Store the credentials in AWS Secrets Manager and enable rotation. Configure the API to have Secrets Manager access. This is correct. This solution will meet the requirements most securely, because it uses a service that is designed to store and manage secrets such as API credentials. AWS Secrets Manager helps you protect access to your applications, services, and IT resources by enabling you to rotate, manage, and retrieve secrets throughout their lifecycle1. You can store secrets such as passwords, database strings, API keys, and license codes as encrypted values2. You can also configure automatic rotation of your secrets on a schedule that you specify3. You can use the AWS SDK or CLI to retrieve secrets from Secrets Manager when you need them4. This way, you can avoid storing credentials in plaintext files or hardcoding them in your code.


NEW QUESTION # 184
An AWS Lambda function requires read access to an Amazon S3 bucket and requires read/write access to an Amazon DynamoDB table The correct 1AM policy already exists What is the MOST secure way to grant the Lambda function access to the S3 bucket and the DynamoDB table?

  • A. Create an 1AM user with programmatic access Attach the existing 1AM policy to the user. Add the user access key ID and secret access key as environment variables in the Lambda function.
  • B. Attach the existing 1AM policy to the Lambda function.
  • C. Create an 1AM role for the Lambda function Attach the existing 1AM policy to the role Attach the role to the Lambda function
  • D. Add the AWS account root user access key ID and secret access key as encrypted environment variables in the Lambda function

Answer: C

Explanation:
Principle of Least Privilege: Granting specific permissions through an IAM role is more secure than directly attaching policies to a function or using root user credentials.
IAM Roles for Lambda: Designed to provide temporary credentials to Lambda functions, enhancing security.
Reusability: The existing IAM policy ensures the correct S3 and DynamoDB access is granted.
Reference:
IAM Roles for Lambda Documentation: https://docs.aws.amazon.com/lambda/latest/dg/lambda-intro-execution-role.html IAM Best Practices: https://docs.aws.amazon.com/IAM/latest/UserGuide/best-practices.html


NEW QUESTION # 185
A developer is optimizing an AWS Lambda function and wants to test the changes in production on a small percentage of all traffic. The Lambda function serves requests to a RE ST API in Amazon API Gateway. The developer needs to deploy their changes and perform a test in production without changing the API Gateway URL.
Which solution will meet these requirements?

  • A. Define a function version for the currently deployed production Lambda function. Update the API Gateway endpoint to reference the new Lambda function version. Upload and publish the optimized Lambda function code. On the production API Gateway stage, define a canary release and set the percentage of traffic to direct to the canary release. Update the API Gateway endpoint to use the $LATEST version of the Lambda function. Publish the API to the canary stage.
  • B. Define an alias on the $LATEST version of the Lambda function. Update the API Gateway endpoint to reference the new Lambda function alias. Upload and publish the optimized Lambda function code. On the production API Gateway stage, define a canary release and set the percentage of traffic to direct to the canary release. Update the API Gateway endpoint to use the
    $LATEST version of the Lambda function. Publish to the canary stage.
  • C. Define a function version for the currently deployed production Lambda function. Update the API Gateway endpoint to reference the new Lambda function version. Upload and publish the optimized Lambda function code. Update the API Gateway endpoint to use the $LATEST version of the Lambda function. Deploy a new API Gateway stage.
  • D. Define a function version for the currently deployed production Lambda function. Update the API Gateway endpoint to reference the new Lambda function version. Upload and publish the optimized Lambda function code. Update the API Gateway endpoint to use the $LATEST version of the Lambda function. Deploy the API to the production API Gateway stage.

Answer: A


NEW QUESTION # 186
A developer is working on a Python application that runs on Amazon EC2 instances. The developer wants to enable tracing of application requests to debug performance issues in the code.
Which combination of actions should the developer take to achieve this goal? (Select TWO)

  • A. Configure the application to write JSON-formatted togs to /var/log/cloudwatch.
  • B. Configure the application to write trace data to /Var/log-/xray.
  • C. Install the AWS X-Ray daemon on the EC2 instances.
  • D. Install and configure the AWS X-Ray SDK for Python in the application.
  • E. Install the Amazon CloudWatch agent on the EC2 instances.

Answer: C,D

Explanation:
This solution will meet the requirements by using AWS X-Ray to enable tracing of application requests to debug performance issues in the code. AWS X-Ray is a service that collects data about requests that the applications serve, and provides tools to view, filter, and gain insights into that data. The developer can install the AWS X-Ray daemon on the EC2 instances, which is a software that listens for traffic on UDP port 2000, gathers raw segment data, and relays it to the X-Ray API. The developer can also install and configure the AWS X-Ray SDK for Python in the application, which is a library that enables instrumenting Python code to generate and send trace data to the X-Ray daemon. Option A is not optimal because it will install the Amazon CloudWatch agent on the EC2 instances, which is a software that collects metrics and logs from EC2 instances and on-premises servers, not application performance data. Option C is not optimal because it will configure the application to write JSON-formatted logs to /var/log/cloudwatch, which is not a valid path or destination for CloudWatch logs. Option D is not optimal because it will configure the application to write trace data to /var/log/xray, which is also not a valid path or destination for X-Ray trace data.


NEW QUESTION # 187
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