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Certification Amazon DVA-C02 Exam Dumps - DVA-C02 Valid Exam Tips

We have prepared our Amazon DVA-C02 Training Materials for you. They are professional practice material under warranty. Accompanied with acceptable prices for your reference, all our materials with three versions are compiled by professional experts in this area more than ten years long.

Amazon DVA-C02 exam covers a wide range of topics related to AWS development. DVA-C02 exam tests the candidate's knowledge of AWS core services such as EC2, S3, RDS, DynamoDB, and Lambda, along with other services such as API Gateway, CloudFront, CloudFormation, and CloudWatch. DVA-C02 exam also covers topics such as AWS security, deployment, and troubleshooting. To pass the exam, candidates must demonstrate proficiency in all of these areas.

Amazon DVA-C02 (AWS Certified Developer - Associate) exam is a comprehensive certification that validates the skills and knowledge of developers in designing and deploying scalable, highly available, and fault-tolerant applications on AWS. DVA-C02 exam is intended for individuals who have experience in programming and working with AWS services, and it covers a wide range of topics such as AWS core services, security, and architecture best practices.

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Amazon AWS Certified Developer - Associate Sample Questions (Q140-Q145):

NEW QUESTION # 140
A developer is configuring an application's deployment environment in AWS CodePipeline. The application code is stored in a GitHub repository. The developer wants to ensure that the repository package's unit tests run in the new deployment environment. The developer has already set the pipeline's source provider to GitHub and has specified the repository and branch to use in the deployment.
Which combination of steps should the developer take next to meet these requirements with the LEAST overhead? (Choose two.)

A. Create an AWS CodeBuild project. Add the repository package's build and test commands to the project's buildspec.
B. Create an AWS CodeCommit project. Add the repository package's build and test commands to the project's buildspec.
C. Create an AWS CodeDeploy project. Add the repository package's build and test commands to the project's buildspec.
D. Add an action to the source stage. Specify the newly created project as the action provider.
Specify the build artifact as the action's input artifact.
E. Add a new stage to the pipeline after the source stage. Add an action to the new stage. Specify the newly created project as the action provider. Specify the source artifact as the action's input artifact.

Answer: A,E

Explanation:
The buildspec file is a collection of build commands and related settings, in YAML format, that CodeBuild uses to run a build. By adding the build and test commands to the buildspec file, the developer can ensure that these commands are executed as part of the build process. Option E will ensure that the CodeBuild project is triggered as part of the pipeline and that the unit tests are run in the new deployment environment.

NEW QUESTION # 141
A developer is writing a mobile application that allows users to view images from an S3 bucket.
The users must be able to log in with their Amazon login, as well as supported social media accounts.
How can the developer provide this authentication functionality?

A. Use Amazon Cognito with SAML-based identity federation.
B. Use IAM access keys and secret keys in the application code to allow Get* on the S3 bucket.
C. Use Amazon Cognito with web identity federation.
D. Use AWS STS AssumeRole in the application code and assume a role with Get* permissions on the S3 bucket.

Answer: C

NEW QUESTION # 142
A company is building a serverless application on AWS. The application uses Amazon API Gateway and AWS Lambda. The company wants to deploy the application to its development, test, and production environments.
Which solution will meet these requirements with the LEAST development effort?

A. Use API Gateway stage variables and create Lambda aliases to reference environment-specific resources.
B. Use Amazon Elastic Container Service (Amazon ECS) to deploy the application to the environments.
C. Use AWS Elastic Beanstalk to deploy the application to the environments.
D. Duplicate the code for each environment. Deploy the code to a separate API Gateway stage.

Answer: A

NEW QUESTION # 143
A company has installed smart motes in all Its customer locations. The smart meter's measure power usage at 1minute intervals and send the usage readings to a remote endpoint tot collection. The company needs to create an endpoint that will receive the smart meter readings and store the readings in a database. The company wants to store the location ID and timestamp information.
The company wants to give Is customers low-latency access to their current usage and historical usage on demand The company expects demand to increase significantly. The solution must not impact performance or include downtime write seeing.
When solution will meet these requirements MOST cost-effectively?

A. Store the smart motor readings m an Amazon DynamoDB table Croato a composite Key oy using the location ID and timestamp columns. Use the columns to filter on the customers' data.
B. Store the smart meter readings m Amazon S3 Parton the data by using the location ID and timestamp columns. Use Amazon Athena lo tiler on me customers' data.
C. Store the smart meter readings in an Amazon RDS database. Create an index on the location ID and timestamp columns Use the columns to filter on the customers 'data.
D. Store the smart meter readings in Amazon EastCache for Reds Create a Sorted set key y using the location ID and timestamp columns. Use the columns to filter on the customers' data.

Answer: A

Explanation:
The solution that will meet the requirements most cost-effectively is to store the smart meter readings in an Amazon DynamoDB table. Create a composite key by using the location ID and timestamp columns. Use the columns to filter on the customers' data. This way, the company can leverage the scalability, performance, and low latency of DynamoDB to store and retrieve the smart meter readings. The company can also use the composite key to query the data by location ID and timestamp efficiently. The other options either involve more expensive or less scalable services, or do not provide low-latency access to the current usage.

NEW QUESTION # 144
A developer maintains a critical business application that uses Amazon DynamoDB as the primary data store. The DynamoDB table contains millions of documents and receives 30-60 requests each minute. The developer needs to perform processing in near-real time on the documents when they are added or updated in the DynamoDB table.
How can the developer implement this feature with the LEAST amount of change to the existing application code?

A. Enable a DynamoDB stream on the table. Invoke an AWS Lambda function to process the documents.
B. Set up a cron job on an Amazon EC2 instance. Run a script every hour to query the table for changes and process the documents.
C. Update the application to send a PutEvents request to Amazon EventBridge. Create an EventBridge rule to invoke an AWS Lambda function to process the documents.
D. Update the application to synchronously process the documents directly after the DynamoDB write.

Answer: A

Explanation:
Option B is the best solution because it proposes enabling a DynamoDB stream on the table, which allows the developer to capture document-level changes in near-real time without modifying the application code. Then, the stream can be configured to invoke an AWS Lambda function to process the documents in near-real time. This solution requires minimal changes to the existing application code, and the Lambda function can be developed and deployed separately, enabling the developer to easily maintain and update it as needed.

NEW QUESTION # 145
......

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