Spring Sale Limited Time 70% Discount Offer - Ends in 0d 00h 00m 00s - Coupon code = simple70

Pass the Amazon Web Services AWS Certified Associate DVA-C02 Questions and answers with Dumpstech

Exam DVA-C02 Premium Access

View all detail and faqs for the DVA-C02 exam

Go to Exam

Practice at least 50% of the questions to maximize your chances of passing.

Viewing page 2 out of 12 pages

Viewing questions 16-30 out of questions

Questions # 16:

A developer is deploying a company's application to Amazon EC2 instances The application generates gigabytes of data files each day The files are rarely accessed but the files must be available to the application's users within minutes of a request during the first year of storage The company must retain the files for 7 years.

How can the developer implement the application to meet these requirements MOST cost-effectively?

Options:

Store the files in an Amazon S3 bucket Use the S3 Glacier Instant Retrieval storage class Create an S3 Lifecycle policy to transition the files to the S3 Glacier Deep Archive storage class after 1 year

Store the files in an Amazon S3 bucket. Use the S3 Standard storage class. Create an S3 Lifecycle policy to transition the files to the S3 Glacier Flexible Retrieval storage class after 1 year.

Store the files on an Amazon Elastic Block Store (Amazon EBS) volume Use Amazon Data Lifecycle Manager (Amazon DLM) to create snapshots of the EBS volumes and to store those snapshots in Amazon S3

Store the files on an Amazon Elastic File System (Amazon EFS) mount. Configure EFS lifecycle management to transition the files to the EFS Standard-Infrequent Access (Standard-IA) storage class after 1 year.

Questions # 17:

A company uses Amazon API Gateway to expose a set of APIs to customers. The APIs have caching enabled in API Gateway. Customers need a way to invalidate the cache for each API when they test the API.

What should a developer do to give customers the ability to invalidate the API cache?

Options:

Ask the customers to use AWS credentials to call the InvalidateCache API operation.

Attach an InvalidateCache policy to the IAM execution role that the customers use to invoke the API. Ask the customers to send a request that contains the HTTP header when they make an API call.

Ask the customers to use the AWS SDK API Gateway class to invoke the InvalidateCache API operation.

Attach an InvalidateCache policy to the IAM execution role that the customers use to invoke the API. Ask the customers to add the INVALIDATE_CACHE query string parameter when they make an API call.

Questions # 18:

A company has an Amazon S3 bucket containing premier content that it intends to make available to only paid subscribers of its website. The S3 bucket currently has default permissions of all objects being private to prevent inadvertent exposure of the premier content to non-paying website visitors.

How can the company Limit the ability to download a premier content file in the S3 Bucket to paid subscribers only?

Options:

Apply a bucket policy that allows anonymous users to download the content from the S3 bucket.

Generate a pre-signed object URL for the premier content file when a pad subscriber requests a download.

Add a Docket policy that requires multi-factor authentication for request to access the S3 bucket objects.

Enable server-side encryption on the S3 bucket for data protection against the non-paying website visitors.

Questions # 19:

A company has an application that runs across multiple AWS Regions. The application is experiencing performance issues at irregular intervals. A developer must use AWS X-Ray to implement distributed tracing for the application to troubleshoot the root cause of the performance issues.

What should the developer do to meet this requirement?

Options:

Use the X-Ray console to add annotations for AWS services and user-defined services

Use Region annotation that X-Ray adds automatically for AWS services Add Region annotation for user-defined services

Use the X-Ray daemon to add annotations for AWS services and user-defined services

Use Region annotation that X-Ray adds automatically for user-defined services Configure X-Ray to add Region annotation for AWS services

Questions # 20:

A company needs to develop a proof of concept for a web service application. The application will show the weather forecast for one of the company's office locations. The application will provide a REST endpoint that clients can call. Where possible, the application should use caching features provided by AWS to limit the number of requests to the backend service. The application backend will receive a small amount of traffic only during testing.

Which approach should the developer take to provide the REST endpoint MOST cost-effectively?

Options:

Create a container image. Deploy the container image by using Amazon EKS. Expose the functionality by using Amazon API Gateway.

Create an AWS Lambda function by using AWS SAM. Expose the Lambda functionality by using Amazon API Gateway.

Create a container image. Deploy the container image by using Amazon ECS. Expose the functionality by using Amazon API Gateway.

Create a microservices application. Deploy the application to AWS Elastic Beanstalk. Expose the AWS Lambda functionality by using an Application Load Balancer.

Questions # 21:

A developer supports an application that accesses data in an Amazon DynamoDB table. One of the item attributes is expirationDate in the timestamp format. The application uses this attribute to find items, archive them, and remove them from the table based on the timestamp value

The application will be decommissioned soon, and the developer must find another way to implement this functionality. The developer needs a solution that will require the least amount of code to write.

Which solution will meet these requirements?

Options:

Enable TTL on the expirationDate attribute in the table. Create a DynamoDB stream. Create an AWS Lambda function to process the deleted items. Create a DynamoDB trigger for the Lambda function.

Create two AWS Lambda functions one to delete the items and one to process the items Create a DynamoDB stream Use the Deleteltem API operation to delete the items based on the expirationDate attribute Use the GetRecords API operation to get the items from the DynamoDB stream and process them

Create two AWS Lambda functions, one to delete the items and one to process the items. Create an Amazon EventBndge scheduled rule to invoke the Lambda Functions Use the Deleteltem API operation to delete the items based on the expirationDate attribute. Use the GetRecords API operation to get the items from the DynamoDB table and process them.

Enable TTL on the expirationDate attribute in the table Specify an Amazon Simple Queue Service (Amazon SQS> dead-letter queue as the target to delete the items Create an AWS Lambda function to process the items

Questions # 22:

A developer has a financial application. The application uses AWS Secrets Manager to manage an Amazon RDS for PostgreSQL database's username and password. The developer needs to rotate the password while maintaining the application's high availability. Which solution will meet these requirements with LEAST development effort?

Options:

Rotate the secret by using the alternating-users rotation strategy. Update the application with an appropriate retry strategy to handle authentication failures.

Use the PostgreSQL client to create a new database username and password. Include the new secret values by performing an immediate rotation. Use the AWS CLI to update the RDS database password. Perform an immediate rotation of the Secrets Manager secrets.

Rotate the secret by using multivalue answer rotation. Update the application with an appropriate retry strategy to handle authentication failures.

Rotate the secret by using the single-user rotation strategy. Update the application with an appropriate retry strategy to handle authentication failures.

Questions # 23:

A company's development team uses an SSH key pair to copy files among a large fleet of development servers. The SSH key pair has been compromised. A developer has generated a replacement key pair. The company has deployed the AWS Systems Manager Agent (SSM Agent) and the Amazon CloudWatch agent on all of the development servers.

The developer needs a solution to distribute the new key to all the Linux servers.

Which solution will meet these requirements in the MOST operationally efficient way?

Options:

Create an Amazon S3 bucket. Store the public key in the root of the S3 bucket. Log in to each server. Copy the private key from the S3 bucket to the appropriate directory of each server.

Create an Amazon S3 bucket. Store the public key in the root of the S3 bucket. Create a script to copy the private key from the S3 bucket to the appropriate directory of each server. Use Systems Manager Run Command to run the script on all Linux servers.

Upload the new SSH key pair to AWS Secrets Manager as a new secret. Grant the team members permissions to download the secret into the appropriate directory of each server.

Upload the new SSH key pair to AWS Systems Manager Parameter Store. Make each key a new parameter. Grant the team members permissions to download the parameters into the appropriate directory of each server.

Questions # 24:

A developer is configuring an applications deployment environment in AWS CodePipeine. 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 deployment has already set the pipeline's source provider to GitHub and has specified the repository and branch to use in the deployment.

When combination of steps should the developer take next to meet these requirements with the least the LEAST overhead' (Select TWO).

Options:

Create an AWS CodeCommt project. Add the repository package's build and test commands to the protects buildspec

Create an AWS CodeBuid project. Add the repository package's build and test commands to the projects buildspec

Create an AWS CodeDeploy protect. Add the repository package's build and test commands to the project's buildspec

Add an action to the source stage. Specify the newly created project as the action provider. Specify the build attract as the actions input artifact.

Add a new stage to the pipeline alter the source stage. Add an action to the new stage. Speedy the newly created protect as the action provider. Specify the source artifact as the action's input artifact.

Questions # 25:

A developer compiles an AWS Lambda function and packages the result as a .zip file. The developer uses the Functions page on the Lambda console to attempt to upload the local packaged .zip file. When pushing the package to Lambda, the console returns the following error:

Question # 25

Which solutions can the developer use to publish the code? (Select TWO.)

Options:

Upload the package to Amazon S3. Use the Functions page on the Lambda console to upload the package from the S3 location.

Create an AWS Support ticket to increase the maximum package size.

Use the update-function-code AWS CLI command. Pass the -publish parameter.

Repackage the Lambda function as a Docker container image. Upload the image to Amazon Elastic Container Registry {Amazon ECR). Create a new Lambda function by using the Lambda console. Reference the image that is deployed to Amazon ECR.

Sign the .zip file digitally. Create a new Lambda function by using the Lambda console. Update the configuration of the new Lambda function to include the Amazon Resource Name (ARN) of the code signing configuration.

Questions # 26:

An application stores user data in Amazon S3 buckets in multiple AWS Regions. A developer needs to implement a solution that analyzes the user data in the S3 buckets to find sensitive information. The analysis findings from all the S3 buckets must be available in the eu-west-2 Region.

Which solution will meet these requirements with the LEAST development effort?

Options:

Create an AWS Lambda function to generate findings. Program the Lambda function to send the findings to another S3 bucket in eu-west-2.

Configure Amazon Made to generate findings. Use Amazon EventBridge to create rules that copy the findings to eu-west-2.

Configure Amazon Inspector to generate findings. Use Amazon EventBridge to create rules that copy the findings to eu-west-2.

Configure Amazon Macie to generate findings and to publish the findings to AWS CloudTrail. Use a CloudTrail trail to copy the results to eu-west-2.

Questions # 27:

A developer migrated a legacy application to an AWS Lambda function. The function uses a third-party service to pull data with a series of API calls at the end of each month. The function than processes the data to generate the monthly reports. The function has Been working with no issues so far.

The third-party service recently issued a restriction to allow a feed number to API calls each minute and each day. If the API calls exceed the limit tor each minute or each day, then the service will produce errors. The API also provides the minute limit and daily limit in the response header. This restriction might extend the overall process to multiple days because the process is consuming more API calls than the available limit.

What is the MOST operationally efficient way to refactor the server less application to accommodate this change?

Options:

Use an AWS Step Functions State machine to monitor API failures. Use the Wait state to delay calling the Lambda function.

Use an Amazon Simple Queue Service (Amazon SQS) queue to hold the API calls. Configure the Lambda function to poll the queue within the API threshold limits.

Use an Amazon CloudWatch Logs metric to count the number of API calls. Configure an Amazon CloudWatch alarm flat slops the currently running instance of the Lambda function when the metric exceeds the API threshold limits.

Use Amazon Kinesis Data Firehose to batch me API calls and deliver them to an Amazon S3 bucket win an event notification to invoke the Lambda function.

Questions # 28:

A development learn has an Amazon API Gateway REST API that is backed by an AWS Lambda function.

Users have reported performance issues for the Lambda function. The development team identified the source of the issues as a cold start of the Lambda function. The development team needs to reduce the time needed for the Lambda function to initialize.

Which solution will meet this requirement?

Options:

Change the Lambda concurrency lo reserved concurrency.

Increase the timeout of the Lambda function.

Increase the memory allocation of the Lambda function.

Configure provisioned concurrency for the Lambda function.

Questions # 29:

A company is working on a new serverless application. A developer needs to find an automated way to deploy AWS Lambda functions and the dependent Infrastructure with minimum coding effort. The application also needs to be reliable.

Which method will meet these requirements with the LEAST operational overhead?

Options:

Build the application by using shell scripts to create .zip files for each Lambda function. Manually upload the .zip files to the AWS Management Console.

Build the application by using the AWS Serverless Application Model (AWS SAM). Use a continuous integration and continuous delivery (CI/CD) pipeline and the SAM CLI to deploy the Lambda functions.

Build the application by using shell scripts to create .zip files for each Lambda function. Upload the .zip files. Deploy the .zip files as Lambda functions by using the AWS CLI in a continuous integration and continuous delivery (CI/CD) pipeline.

Build a container for each Lambda function. Store the container images in AWS CodeArtifact. Deploy the containers as Lambda functions by using the AWS CLI in a continuous integration and continuous delivery (CI/CD) pipeline.

Questions # 30:

A developer is building an application that includes an AWS Lambda function that is written in .NET Core. The Lambda function's code needs to interact with Amazon DynamoDB tables and Amazon S3 buckets. The developer must minimize the Lambda function's deployment time and invocation duration.

Which solution will meet these requirements?

Options:

Increase the Lambda function's memory.

Include the entire AWS SDK for .NET in the Lambda function's deployment package.

Include only the AWS SDK for .NET modules for DynamoDB and Amazon S3 in the Lambda function's deployment package.

Configure the Lambda function to download the AWS SDK for .NET from an S3 bucket at runtime.

Viewing page 2 out of 12 pages

Viewing questions 16-30 out of questions