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Free Amazon Web Services DOP-C02 Practice Exam with Questions & Answers | Set: 5

Questions 41

A rapidly growing company wants to scale for developer demand for AWS development environments. Development environments are created manually in the AWS Management Console. The networking team uses AWS CloudFormation to manage the networking infrastructure, exporting stack output values for the Amazon VPC and all subnets. The development environments have common standards, such as Application Load Balancers, Amazon EC2 Auto Scaling groups, security groups, and Amazon DynamoDB tables.

To keep up with demand, the DevOps engineer wants to automate the creation of development environments. Because the infrastructure required to support the application is expected to grow, there must be a way to easily update the deployed infrastructure. CloudFormation will be used to create a template for the development environments.

Which approach will meet these requirements and quickly provide consistent AWS environments for developers?

Options:
A.

Use Fn::ImportValue intrinsic functions in the Resources section of the template to retrieve Virtual Private Cloud (VPC) and subnet values. Use CloudFormation StackSets for the development environments, using the Count input parameter to indicate the number of environments needed. Use the UpdateStackSet command to update existing development environments.

B.

Use nested stacks to define common infrastructure components. To access the exported values, use TemplateURL to reference the networking team’s template. To retrieve Virtual Private Cloud (VPC) and subnet values, use Fn::ImportValue intrinsic functions in the Parameters section of the root template. Use the CreateChangeSet and ExecuteChangeSet commands to update existing development environments.

C.

Use nested stacks to define common infrastructure components. Use Fn::ImportValue intrinsic functions with the resources of the nested stack to retrieve Virtual Private Cloud (VPC) and subnet values. Use the CreateChangeSet and ExecuteChangeSet commands to update existing development environments.

D.

Use Fn::ImportValue intrinsic functions in the Parameters section of the root template to retrieve Virtual Private Cloud (VPC) and subnet values. Define the development resources in the order they need to be created in the CloudFormation nested stacks. Use the CreateChangeSet. and ExecuteChangeSet commands to update existing development environments.

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Questions 42

A DevOps engineer is working on a data archival project that requires the migration of on-premises data to an Amazon S3 bucket. The DevOps engineer develops a script that incrementally archives on-premises data that is older than 1 month to Amazon S3. Data that is transferred to Amazon S3 is deleted from the on-premises location The script uses the S3 PutObject operation.

During a code review the DevOps engineer notices that the script does not verity whether the data was successfully copied to Amazon S3. The DevOps engineer must update the script to ensure that data is not corrupted during transmission. The script must use MD5 checksums to verify data integrity before the on-premises data is deleted.

Which solutions for the script will meet these requirements ' ? (Select TWO.)

Options:
A.

Check the returned response for the Versioned Compare the returned Versioned against the MD5 checksum.

B.

Include the MD5 checksum within the Content-MD5 parameter. Check the operation call ' s return status to find out if an error was returned.

C.

Include the checksum digest within the tagging parameter as a URL query parameter.

D.

Check the returned response for the ETag. Compare the returned ETag against the MD5 checksum.

E.

Include the checksum digest within the Metadata parameter as a name-value pair After upload use the S3 HeadObject operation to retrieve metadata from the object.

Questions 43

An application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). A DevOps engineer is using AWS CodeDeploy to release a new version. The deployment fails during the AlIowTraffic lifecycle event, but a cause for the failure is not indicated in the deployment logs.

What would cause this?

Options:
A.

The appspec. yml file contains an invalid script that runs in the AllowTraffic lifecycle hook.

B.

The user who initiated the deployment does not have the necessary permissions to interact with the ALB.

C.

The health checks specified for the ALB target group are misconfigured.

D.

The CodeDeploy agent was not installed in the EC2 instances that are pad of the ALB target group.

Questions 44

A company runs an application on Amazon EC2 instances. The company uses a series of AWS CloudFormation stacks to define the application resources. A developer performs updates by building and testing the application on a laptop and then uploading the build output and CloudFormation stack templates to Amazon S3. The developer ' s peers review the changes before the developer performs the CloudFormation stack update and installs a new version of the application onto the EC2 instances.

The deployment process is prone to errors and is time-consuming when the developer updates each EC2 instance with the new application. The company wants to automate as much of the application deployment process as possible while retaining a final manual approval step before the modification of the application or resources.

The company already has moved the source code for the application and the CloudFormation templates to AWS CodeCommit. The company also has created an AWS CodeBuild project to build and test the application.

Which combination of steps will meet the company’s requirements? (Choose two.)

Options:
A.

Create an application group and a deployment group in AWS CodeDeploy. Install the CodeDeploy agent on the EC2 instances.

B.

Create an application revision and a deployment group in AWS CodeDeploy. Create an environment in CodeDeploy. Register the EC2 instances to the CodeDeploy environment.

C.

Use AWS CodePipeline to invoke the CodeBuild job, run the CloudFormation update, and pause for a manual approval step. After approval, start the AWS CodeDeploy deployment.

D.

Use AWS CodePipeline to invoke the CodeBuild job, create CloudFormation change sets for each of the application stacks, and pause for a manual approval step. After approval, run the CloudFormation change sets and start the AWS CodeDeploy deployment.

E.

Use AWS CodePipeline to invoke the CodeBuild job, create CloudFormation change sets for each of the application stacks, and pause for a manual approval step. After approval, start the AWS CodeDeploy deployment.

Questions 45

A DevOps team manages an API running on-premises that serves as a backend for an Amazon API Gateway endpoint. Customers have been complaining about high response latencies, which the development team has verified using the API Gateway latency metrics in Amazon CloudWatch. To identify the cause, the team needs to collect relevant data without introducing additional latency.

Which actions should be taken to accomplish this? (Choose two.)

Options:
A.

Install the CloudWatch agent server side and configure the agent to upload relevant logs to CloudWatch.

B.

Enable AWS X-Ray tracing in API Gateway, modify the application to capture request segments, and upload those segments to X-Ray during each request.

C.

Enable AWS X-Ray tracing in API Gateway, modify the application to capture request segments, and use the X-Ray daemon to upload segments to X-Ray.

D.

Modify the on-premises application to send log information back to API Gateway with each request.

E.

Modify the on-premises application to calculate and upload statistical data relevant to the API service requests to CloudWatch metrics.

Questions 46

A company manages a large fleet of Amazon EC2 Linux instances in its production AWS account by using AWS Systems Manager . The EC2 instances must comply with a list of compliance requirements.

The company ' s DevOps engineers wrote Chef cookbooks to detect and remediate configuration deviations. The company does not want to manage a Chef server and agent infrastructure.

The DevOps engineers need to set up the Chef cookbooks to run periodically on the EC2 instances.

Which solution will meet these requirements?

Options:
A.

Create a Systems Manager State Manager association . Associate the AWS-ApplyChefRecipes document with all EC2 instances. Configure the association to retrieve the Chef cookbooks from a source repository and to run every hour.

B.

Store the Chef agent installation package in an Amazon S3 bucket. Configure a Systems Manager Run Command to invoke the AWS-InstallApplication command on all instances and to run the repair action. Schedule the Run Command to run every hour.

C.

Create a Systems Manager State Manager association that applies the AWS-RefreshAssociation document to all EC2 instances. Configure the association to run every hour.

D.

Configure a Systems Manager patch policy to run the scan and install operation every hour. Create a patch baseline for the EC2 instances. Configure the instance IAM profile with permissions for patch operations.

Questions 47

A company uses Amazon Redshift as its data warehouse solution. The company wants to create a dashboard to view changes to the Redshift users and the queries the users perform.

Which combination of steps will meet this requirement? (Select TWO.)

Options:
A.

Create an Amazon CloudWatch log group. Create an AWS CloudTrail trail that writes to the CloudWatch log group.

B.

Create a new Amazon S3 bucket. Configure default audit logging on the Redshift cluster. Configure the S3 bucket as the target.

C.

Configure the Redshift cluster database audit logging to include user activity logs. Configure Amazon CloudWatch as the target.

D.

Create an Amazon CloudWatch dashboard that has a log widget. Configure the widget to display user details from the Redshift logs.

E.

Create an AWS Lambda function that uses Amazon Athena to query the Redshift logs. Create an Amazon CloudWatch dashboard that has a custom widget type that uses the Lambda function.

Questions 48

A company has an application that uses an Amazon API Gateway REST API, AWS Lambda functions, and an Amazon DynamoDB table. The application currently runs in a single AWS Region. The company wants to make the application highly available across two Regions. User traffic must be routed to the Region that provides the least latency.

Which combination of steps will meet these requirements? (Select THREE.)

Options:
A.

Create a global table replica of the DynamoDB table in a second Region.

B.

Create a global secondary index for the DynamoDB table.

C.

Create copies of the REST API and the Lambda functions in a second Region.

D.

Create health checks in Amazon Route 53. Create DNS records that include a failover routing policy.

E.

Create health checks in Amazon Route 53. Create DNS records that include a latency routing policy.

F.

Create DNS records in Amazon Route 53 that include a multivalue answer routing policy.

Questions 49

A company is refactoring applications to use AWS. The company identifies an internal web application that needs to make Amazon S3 API calls in a specific AWS account.

The company wants to use its existing identity provider (IdP) auth.company.com for authentication. The IdP supports only OpenID Connect (OIDC). A DevOps engineer needs to secure the web application ' s access to the AWS account.

Which combination of steps will meet these requirements? (Select THREE.)

Options:
A.

Configure AWS 1AM Identity Center. Configure an IdP. Upload the IdP metadata from the existing IdP.

B.

Create an 1AM IdP by using the provider URL, audience, and signature from the existing IdP.

C.

Create an 1AM role that has a policy that allows the necessary S3 actions. Configure the role ' s trust policy to allow the OIDC IdP to assume the role if the sts.amazon.conraud context key is appid from idp.

D.

Create an 1AM role that has a policy that allows the necessary S3 actions. Configure the role ' s trust policy to allow the OIDC IdP to assume the role if the auth.company.com:aud context key is appid_from_idp.

E.

Configure the web application lo use the AssumeRoleWith Web Identity API operation to retrieve temporary credentials. Use the temporary credentials to make the S3 API calls.

F.

Configure the web application to use the GetFederationToken API operation to retrieve temporary credentials Use the temporary credentials to make the S3 API calls.

Questions 50

A company containerized its Java app and uses CodePipeline. They want to scan images in ECR for vulnerabilities and reject images with critical vulnerabilities in a manual approval stage.

Which solution meets these?

Options:
A.

Basic scanning with EventBridge for Inspector findings and Lambda to reject manual approval if critical vulnerabilities found.

B.

Enhanced scanning, Lambda invokes Inspector for SBOM, exports to S3, Athena queries SBOM, rejects manual approval on critical findings.

C.

Enhanced scanning, EventBridge listens to Detective scan findings, Lambda rejects manual approval on critical vulnerabilities.

D.

Enhanced scanning, EventBridge listens to Inspector scan findings, Lambda rejects manual approval on critical vulnerabilities.