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Amazon Web Services DOP-C02 - AWS Certified DevOps Engineer - Professional

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Total 449 questions

A large enterprise is deploying a web application on AWS. The application runs on Amazon EC2 instances behind an Application Load Balancer. The instances run in an Auto Scaling group across multiple Availability Zones. The application stores data in an Amazon RDS for Oracle DB instance and Amazon DynamoDB. There are separate environments tor development testing and production.

What is the MOST secure and flexible way to obtain password credentials during deployment?

A.

Retrieve an access key from an AWS Systems Manager securestring parameter to access AWS services. Retrieve the database credentials from a Systems Manager SecureString parameter.

B.

Launch the EC2 instances with an EC2 1AM role to access AWS services Retrieve the database credentials from AWS Secrets Manager.

C.

Retrieve an access key from an AWS Systems Manager plaintext parameter to access AWS services. Retrieve the database credentials from a Systems Manager SecureString parameter.

D.

Launch the EC2 instances with an EC2 1AM role to access AWS services Store the database passwords in an encrypted config file with the application artifacts.

A company maintains multiple AWS accounts by using a centralized outbound VPC that routes traffic through a transit gateway.

The company deploys an AWS Lambda function to a workload VPC. The Lambda function needs to flush an Amazon API Gateway stage cache by calling API Gateway. The company’s security policy prohibits any AWS service API call from traversing the public internet.

Which solution will meet this requirement?

A.

Create a gateway VPC endpoint within the workload VPC for the API Gateway control plane and data plane endpoints.

B.

Create an interface VPC endpoint within the workload VPC for an API Gateway data plane endpoint.

C.

Create a transit gateway attachment between the workload VPC and the centralized outbound VPC. Route API Gateway traffic through the transit gateway.

D.

Create an interface VPC endpoint within the workload VPC for an API Gateway control plane endpoint.

A company sends its AWS Network Firewall flow logs to an Amazon S3 bucket. The company then analyzes the flow logs by using Amazon Athena. The company needs to transform the flow logs and add additional data before the flow logs are delivered to the existing S3 bucket. Which solution will meet these requirements?

A.

Create an AWS Lambda function to transform the data and to write a new object to the existing S3 bucket. Configure the Lambda function with an S3 trigger for the existing S3 bucket. Specify all object create events for the event type. Acknowledge the recursive invocation.

B.

Enable Amazon EventBridge notifications on the existing S3 bucket. Create a custom EventBridge event bus. Create an EventBridge rule that is associated with the custom event bus. Configure the rule to react to all object create events for the existing S3 bucket and to invoke an AWS Step Functions workflow. Configure a Step Functions task to transform the data and to write the data into a new S3 bucket.

C.

Create an Amazon EventBridge rule that is associated with the default EventBridge event bus. Configure the rule to react to all object create events for the existing S3 bucket. Define a new S3 bucket as the target for the rule. Create an EventBridge input transformation to customize the event before passing the event to the rule target.

D.

Create an Amazon Data Firehose delivery stream that is configured with an AWS Lambda transformer. Specify the existing S3 bucket as the destination. Change the Network Firewall logging destination from Amazon S3 to Firehose.

A DevOps engineer is working on a member account in an organization in AWS Organizations with all features enabled. The account has sensitive data stored in Amazon S3 buckets.

The DevOps engineer must ensure that all public access to S3 buckets in the account is blocked. If the account-level public access settings change in the future, the changes must be reverted automatically so that all public access is blocked again.

Which solution meets these requirements?

A.

Enable AWS Security Hub in the account. Enable the Security Hub control to evaluate the account-level block public access settings. Enable automated remediation for the Security Hub control.

B.

Set up AWS Config in the account. Create an AWS Config managed rule that evaluates the S3 block public access settings. Enable automated remediation for the rule by using a predefined AWS Systems Manager runbook to configure S3 block public access settings.

C.

In the organization ' s management account, create an SCP that denies S3 actions from outside the AWS account. Attach the SCP to the member account.

D.

Enable Amazon Macie in the account. Create an Amazon EventBridge rule with an event pattern that matches Macie policy findings. Configure the rule with an EventBridge target to run a predefined AWS Systems Manager runbook to configure S3 block public access settings.

A company ' s DevOps engineer uses AWS Systems Manager to perform maintenance tasks. The company has a few Amazon EC2 instances that require a restart after notifications from AWS Health.

The DevOps engineer must implement an automated solution that uses Amazon EventBridge to remediate the notifications during the company ' s scheduled maintenance windows.

How should the DevOps engineer configure an EventBridge rule to meet these requirements?

A.

Configure an event source of AWS Health. Configure event types that indicate scheduled instance termination and retirement. Target the AWS-RestartEC2Instance Systems Manager Automation runbook to restart the EC2 instances.

B.

Configure an event source of Systems Manager. Configure an event type that indicates a maintenance window. Target the AWS-RestartEC2Instance Systems Manager Automation runbook to restart the EC2 instances.

C.

Configure an event source of AWS Health. Configure event types that indicate scheduled instance termination and retirement. Target a newly created AWS Lambda function that registers a Systems Manager maintenance window task to restart the EC2 instances.

D.

Configure an event source of EC2. Configure an event type that indicates instance state notification. Target a newly created AWS Lambda function that registers a Systems Manager maintenance window task to restart the EC2 instances.

A company runs an application for multiple environments in a single AWS account. An AWS CodePipeline pipeline uses a development Amazon Elastic Container Service (Amazon ECS) cluster to test an image from an Amazon Elastic Container Registry (Amazon ECR) repository. The pipeline promotes the image to a production ECS cluster.

The company needs to move the production cluster into a separate AWS account in the same AWS Region. The production cluster must be able to download the images over a private connection.

Which solution will meet these requirements?

A.

Use Amazon ECR VPC endpoints and an Amazon S3 gateway endpoint. In the separate AWS account, create an ECR repository. Set the repository policy to allow the production ECS tasks to pull images from the main AWS account. Configure the production ECS task execution role to have permission to download the image from the ECR repository.

B.

Set a policy on the production ECR repository in the main AWS account. Configure the repository policy to allow the production ECS tasks in the separate AWS account to pull images from the main account. Configure the production ECS task execution role to have permission to download the image from the ECR repository.

C.

Configure ECR private image replication in the main AWS account. Activate cross-account replication. Define the destination account ID of the separate AWS account.

D.

Use Amazon ECR VPC endpoints and an Amazon S3 gateway endpoint. Set a repository policy on the ECR repository in the main AWS account. Configure the repository policy to allow the production ECS tasks in the separate AWS account to pull images from the main account. Configure the production ECS task execution role to have permission to download the image from the ECR repository.

A DevOps engineer needs to configure an AWS CodePipeline pipeline that publishes container images to an Amazon ECR repository. The pipeline must wait for the previous run to finish and must run when new Git tags are pushed to a Git repository connected to AWS CodeConnections. An existing deployment pipeline must run in response to new container image publications.

Which solution will meet these requirements?

A.

Configure a CodePipeline V2 type pipeline that uses QUEUED mode. Add a trigger filter to the pipeline definition that includes all tags. Configure an EventBridge rule that matches container image pushes to start the existing deployment pipeline.

B.

Configure a CodePipeline V2 type pipeline that uses SUPERSEDED mode. Add a trigger filter to the pipeline definition that includes all branches. Configure an EventBridge rule that matches container image pushes to start the existing deployment pipeline.

C.

Configure a CodePipeline V1 type pipeline that uses SUPERSEDED mode. Add a trigger filter to the pipeline definition that includes all tags. Add a stage at the end of the pipeline to invoke the existing deployment pipeline.

D.

Configure a CodePipeline V1 type pipeline that uses QUEUED mode. Add a trigger filter to the pipeline definition that includes all branches. Add a stage at the end of the pipeline to invoke the existing deployment pipeline.

A company has a new AWS account that teams will use to deploy various applications. The teams will create many Amazon S3 buckets for application- specific purposes and to store AWS CloudTrail logs. The company has enabled Amazon Macie for the account.

A DevOps engineer needs to optimize the Macie costs for the account without compromising the account ' s functionality.

Which solutions will meet these requirements? (Select TWO.)

A.

Exclude S3 buckets that contain CloudTrail logs from automated discovery.

B.

Exclude S3 buckets that have public read access from automated discovery.

C.

Configure scheduled daily discovery jobs for all S3 buckets in the account.

D.

Configure discovery jobs to include S3 objects based on the last modified criterion.

E.

Configure discovery jobs to include S3 objects that are tagged as production only.

A company has an application that is using a MySQL-compatible Amazon Aurora Multi-AZ DB cluster as the database. A cross-Region read replica has been created for disaster recovery purposes. A DevOps engineer wants to automate the promotion of the replica so it becomes the primary database instance in the event of a failure.

Which solution will accomplish this?

A.

Configure a latency-based Amazon Route 53 CNAME with health checks so it points to both the primary and replica endpoints. Subscribe an Amazon SNS topic to Amazon RDS failure notifications from AWS CloudTrail and use that topic to invoke an AWS Lambda function that will promote the replica instance as the primary.

B.

Create an Aurora custom endpoint to point to the primary database instance. Configure the application to use this endpoint. Configure AWS CloudTrail to run an AWS Lambda function to promote the replica instance and modify the custom endpoint to point to the newly promoted instance.

C.

Create an AWS Lambda function to modify the application ' s AWS CloudFormation template to promote the replica, apply the template to update the stack, and point the application to the newly promoted instance. Create an Amazon CloudWatch alarm to invoke this Lambda function after the failure event occurs.

D.

Store the Aurora endpoint in AWS Systems Manager Parameter Store. Create an Amazon EventBridge event that detects the database failure and runs an AWS Lambda function to promote the replica instance and update the endpoint URL stored in AWS Systems Manager Parameter Store. Code the application to reload the endpoint from Parameter Store if a database connection fails.

A company uses AWS CloudFormation stacks to deploy updates to its application. The stacks consist of different resources. The resources include AWS Auto Scaling groups, Amazon EC2 instances, Application Load Balancers (ALBs), and other resources that are necessary to launch and maintain independent stacks. Changes to application resources outside of CloudFormation stack updates are not allowed.

The company recently attempted to update the application stack by using the AWS CLI. The stack failed to update and produced the following error message: " ERROR: both the deployment and the CloudFormation stack rollback failed. The deployment failed because the following resource(s) failed to update: [AutoScalingGroup]. "

The stack remains in a status of UPDATE_ROLLBACK_FAILED. *

Which solution will resolve this issue?

A.

Update the subnet mappings that are configured for the ALBs. Run the aws cloudformation update-stack-set AWS CLI command.

B.

Update the 1AM role by providing the necessary permissions to update the stack. Run the aws cloudformation continue-update-rollback AWS CLI command.

C.

Submit a request for a quota increase for the number of EC2 instances for the account. Run the aws cloudformation cancel-update-stack AWS CLI command.

D.

Delete the Auto Scaling group resource. Run the aws cloudformation rollback-stack AWS CLI command.