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To prepare for the DOP-C01 exam, candidates should have a strong background in AWS and DevOps. AWS offers a variety of training courses and resources to help candidates prepare for the exam, including instructor-led training, online courses, and practice exams. Candidates should also have hands-on experience working with AWS services and applications in a DevOps environment.
Amazon AWS-DevOps (AWS Certified DevOps Engineer - Professional (DOP-C01)) Certification Exam is a highly sought-after certification for IT professionals looking to advance their skills in the field of DevOps. DevOps is a set of practices that emphasizes collaboration and communication between software developers and other IT professionals in order to improve the speed and quality of software delivery. The AWS-DevOps certification exam is designed to test the knowledge and skills necessary to design, deploy, and manage a DevOps system on the Amazon Web Services (AWS) platform.
NEW QUESTION # 214
Consider the portion of a CloudTrail log file below. Which type of event is being captured?
"eventTime":"2016-07-16T17:35:32Z",
"eventSource":"signin.amazonaws.com",
"eventName":"ConsoleLogin",
"awsRegion":"us-west-1",
"sourceIPAddress":"192.1.2.10",
...
- A. AWS deployment
- B. AWS console sign-in
- C. AWS error
- D. AWS log off
Answer: B
Explanation:
CloudTrail records attempts to sign into the AWS Management Console, the AWS Discussion Forums and the AWS Support Center. Note, however, that CloudTrail does not record root sign-in failures.
Reference:
http://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-event-reference-aws- console-sign-in-events.html
NEW QUESTION # 215
Your company has multiple applications running on AWS.
Your company wants to develop a tool that notifies on-call teams immediately via email when an alarm is triggered in your environment.
You have multiple on-cal teams that work different shifts, and the tool should handle notifying the correct teams at the correct times.
How should you implement this solution?
- A. Create an Amazon SNS topic and configure your on-call team email addresses as subscribers.
Use the AWS SDK tools to integrate your application with Amazon SNS and send messages to this new topic.
Notifications will be sent to on-call users when a CloudWatch alarm is triggered. - B. Create an Amazon SNS topic for each on-call group, and configure each of these with the team member emails as subscribers.
Create another Amazon SNS topic and configure your CloudWatch alarms to notify this topic when triggered.
Create an HTTP subscriber to this topic that notifies your application via HTTP POST when an alarm is triggered.
Use the AWS SDK tools to integrate your application with Amazon SNS and send messages to the correct team topic when on shift. - C. Create an Amazon SNS topic and configure your on-call team email addresses as subscribers.
Create a secondary Amazon SNS topic for alarms and configure your CloudWatch alarms to notify this topic when triggered.
Create an HTTP subscriber to this topic that notifies your application via HTTP POST when an alarm is triggered.
Use the AWS SDK tools to integrate your application with Amazon SNS and send messages to the first topic so that on-call engineers receive alerts. - D. Create an Amazon SNS topic and an Amazon SQS queue.
Configure the Amazon SQS queue as a subscriber to the Amazon SNS topic.
Configure CloudWatch alarms to notify this topic when an alarm is triggered.
Create an Amazon EC2 Auto Scaling group with both minimum and desired Instances configured to 0.
Worker nodes in this group spawn when messages are added to the queue.
Workers then use Amazon Simple Email Service to send messages to your on call teams.
Answer: B
NEW QUESTION # 216
A website experiences unpredictable traffic. During peak traffic times, the database is unable to keep up with
the write request.
Which AWS service will help decouple the web application from the database?
- A. Amazon SQS
- B. Amazon EFS
- C. AWS Lambda
- D. Amazon S3
Answer: A
Explanation:
Explanation
Reference https://aws.amazon.com/sqs/faqs/
NEW QUESTION # 217
An Application team is refactoring one of its internal tools to run in AWS instead of on-premises hardware.
All of the code is currently written in Python and is standalone. There is also no external state store or relational database to be queried.
Which deployment pipeline incurs the LEAST amount of changes between development and production?
- A. Developers should use their native Python environment. When Dependencies are changed and a new container is ready, use AWS CodePipeline and AWS CodeBuild to perform functional tests and then upload the new container to the Amazon ECR. Use AWS CloudFormation with the custom container to deploy the new Amazon ECS.
- B. Developers should use their native Python environment. When Dependencies are changed and a new code is ready, use AWS CodePipeline and AWS CodeBuild to perform functional tests and then upload the new container to the Amazon ECR. Use CodePipeline and CodeBuild with the custom container to test new code changes inside AWS Elastic Beanstalk
- C. Developers should use Docker for local development. Use AWS SMS to import these containers as AMIs for Amazon EC2 whenever dependencies are updated. Use AWS CodePipeline to test new code changes against the Auto Scaling group.
Answer: C
NEW QUESTION # 218
A company is using AWS CodeBuild, AWS CodeDeploy, and AWS CodePipeline to deploy applications automatically to an Amazon EC2 instance. A DevOps Engineer needs to perform a security assessment scan of the operating system on every application deployment to the environment.
How should this be automated?
- A. Use Amazon Inspector as a CodePipeline task after the successful use of CodeDeploy to deploy the code to the systems.
- B. Use Amazon CloudWatch Events to monitor for CodePipeline notifications of a successful code deployment and configure CloudWatch Events to trigger an AWS X-Ray scan.
- C. Use Amazon CloudWatch Events to monitor for Auto Scaling event notifications of new instances and configure CloudWatch Events to trigger an Amazon Inspector scan.
- D. Use Amazon CloudWatch Events to monitor for AWS CodeDeploy notifications of a successful code deployment and configure CloudWatch Events to trigger an Amazon Inspector scan.
Answer: D
NEW QUESTION # 219
A DevOps Engineer just joined a new company that is already running workloads on Amazon EC2 instances.
AWS has been adopted incrementally with no central governance. The Engineer must now assess how well the existing deployments comply with the following requirements:
* EC2 instances are running only approved AMIs.
* Amazon EBS volumes are encrypted.
* EC2 instances have an Owner tag.
* Root login over SSH is disabled on EC2 instances.
Which services should the Engineer use to perform this assessment with the LEAST amount of effort? (Select TWO.)
- A. Amazon Inspector
- B. AWS System Manager
- C. AWS Config
- D. Amazon GuardDuty
- E. AWS Directory Service
Answer: B,C
NEW QUESTION # 220
When your application is loaded onto an Opsworks stack, which of the following event is triggered by Opsworks?
- A. Shutdown
- B. Setup
C Configure - C. Deploy
Answer: C
Explanation:
Explanation
When you deploy an application, AWS Ops Works Stacks triggers a Deploy event, which runs each layer's Deploy recipes. AWS OpsWorks Stacks also installs stack configuration and deployment attributes that contain all of the information needed to deploy the app, such as the app's repository and database connection data. For more information on the Deploy event please refer to the below link:
* http://docs.aws.amazon.com/opsworks/latest/userguide/workingapps.html
NEW QUESTION # 221
The Development team at an online retailer has moved to Business support and want to take advantage of the AWS Health Dashboard and the AWS Health API to automate remediation actions for issues with the health of AWS resources. The first use case is to respond to AWS detecting an IAM access key that is listed on a public code repository site. The automated response will be to delete the IAM access key and send a notification to the Security team.
How should this be achieved?
- A. Create an AWS Lambda function to delete the IAM access key. Create an AWS Config rule for changes to aws.health and the AWS_RISK_CREDENTIALS_EXPOSED event with two actions:
first, run the Lambda function; second, use Amazon SNS to send a notification to the Security team. - B. Use AWS Step Functions to create a function to delete the IAM access key, and then use Amazon SNS to send a notification to the Security team. Create an AWS Personal Health Dashboard rule for the AWS_RISK_CREDENTIALS_EXPOSED event; set the target of the Personal Health Dashboard rule to Step Functions.
- C. Create an AWS Lambda function to delete the IAM access key. Send AWS CloudTrail logs to AWS CloudWatch logs. Create a CloudWatch Logs metric filter for the AWS_RISK_CREDENTIALS_EXPOSED event with two actions: first, run the Lambda function; second, use Amazon SNS to send a notification to the Security team.
- D. Use AWS Step Functions to create a function to delete the IAM access key, and then use Amazon SNS to send a notification to the Security team. Create an Amazon CloudWatch Events rule with an aws.health event source and the AWS_RISK_CREDENTIALS_EXPOSED event, set the target of the CloudWatch Events rule to Step Functions.
Answer: D
Explanation:
https://aws.amazon.com/blogs/compute/automate-your-it-operations-using-aws-step-functions- and-amazon-cloudwatch-events/
NEW QUESTION # 222
Using the AWS CLI, which command would you use to change the configuration settings for a CloudTrail trail?
- A. update-trail
- B. set-trail
- C. modify-trail
- D. change-trail
Answer: A
Explanation:
The update-trail command is used to change the configuration settings for a trail. You can only run update-trail command from the region in which the trail was created.
Reference:
http://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-create-and-update-a-trail- by-using-the-aws-cli.html
NEW QUESTION # 223
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 Oracle DB instance and Amazon DynamoDB.
There are separate environments for 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 plaintext parameter to access AWS services.
Retrieve the database credentials from a Systems Manager SecureString parameter. - B. 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.
- C. Launch the EC2 instances with an EC2 IAM role to access AWS services. Retrieve the database credentials from AWS Secrets Manager.
- D. Launch the EC2 instances with an EC2 IAM role to access AWS services. Store the database passwords in an encrypted config file with the application artifacts.
Answer: C
Explanation:
Explanation
https://www.1strategy.com/blog/2019/02/28/aws-parameter-store-vs-aws-secrets-manager/
NEW QUESTION # 224
A company is using AWS CodeDeploy to automate software deployment. The deployment must meet these requirements:
- A number of instances must be available to serve traffic during the
deployment. Traffic must be balanced across those instances, and the
instances must automatically heal in the event of failure.
- A new fleet of instances must be launched for deploying a new
revision automatically, with no manual provisioning.
- Traffic must be rerouted to the new environment to half of the new
instances at a time. The deployment should succeed if traffic is
rerouted to at least half of the instances; otherwise, it should fail.
- Before routing traffic to the new fleet of instances, the temporary
files generated during the deployment process must be deleted.
- At the end of a successful deployment, the original instances in the
deployment group must be deleted immediately to reduce costs.
How can a DevOps Engineer meet these requirements?
- A. Use an Application Load Balancer and a blue/green deployment. Associate the Auto Scaling group and the Application Load Balancer target group with the deployment group. Use the Automatically option, and use CodeDeployDefault HalfAtAtime as the deployment copy Auto Scaling group configuration. Instruct AWS CodeDeploy to terminate the original isntances in the deployment group, and use the BeforeAllowTraffic hook within appspec.yml to delete the temporary files.
- B. Use an Application Load Balancer and an in-place deployment. Associate the Auto Scaling group and Application Load Balancer target group with the deployment group. Use the Automatically copy option, and use CodeDeployDefault AllatOnce as a deployment configuration.
Auto Scaling group
Instruct AWS CodeDeploy to terminate the original instances in the deployment group, and use the BlockTraffic hook within appsec.yml to delete the temporary files. - C. Use an Application Load Balancer and a blue/green deployment. Associate the Auto Scaling group and the Application Load Balancer target group with the deployment group. Use the Automatically option, create a custom deployment configuration with minimum copy Auto Scaling group healthy hosts defined as 50%, and assign the configuration to the deployment group. Instruct AWS CodeDeploy to terminate the original instances in the deployment group, and use the BeforeBlock Traffic hook within appsec.yml to delete the temporary files.
- D. Use an Application Load Balancer and an in-place deployment. Associate the Auto Scaling group with the deployment group. Use the Automatically copy Auto Scaling group option, and use CodeDeployDefault.OneAtAtime as the deployment configuration. Instruct AWS CodeDeploy to terminate the original instances in the deployment group, and use the AllowTraffic hook within appspec.yml to delete the temporary files.
Answer: A
Explanation:
https://docs.aws.amazon.com/codedeploy/latest/APIReference/API_BlueGreenDeploymentConfig uration.html
NEW QUESTION # 225
You have an Auto Scaling group with an Elastic Load Balancer. You decide to suspend the Auto Scaling
AddToLoadBalancer for a short period of time. What will happen to the instances launched during the
suspension period?
- A. Auto Scaling will not launch the instances during this period because of the suspension
- B. The instances will be registered with ELB once the process has resumed
- C. It is not possible to suspend the AddToLoadBalancer process
- D. The instances will not be registered with ELB. You must manually register when the process is resumed
*/
Answer: D
Explanation:
Explanation
If you suspend AddTo Load Balancer, Auto Scaling launches the instances but does not add them to the load
balancer or target group. If you resume
the AddTo Load Balancer process. Auto Scaling resumes adding instances to the load balancer or target group
when they are launched. However, Auto Scaling does
not add the instances that were launched while this process was suspended. You must register those instances
manually.
For more information on the Suspension and Resumption process, please visit the below U RL:
* http://docs.aws.amazon.com/autoscaling/latest/userguide/as-suspend-resu
me-processes.html
NEW QUESTION # 226
A devops engineer wants to deploy a serverless web application based on AWS Lambda. The deployment must meet the following requirements:
* Provide staging and production environments.
* Restrict the developers from accessing the production environment.
* Avoid hard coding passwords in the Lambda functions
* Store source code in AWS CodeCommit.
* Use AWS CodePipeline to automate the deployment.
Which solution will accomplish this?
- A. Create separate staging and production accounts to segregate deployment targets. Use Lambda environment variables to store environment-specific values. Use CodePipeline to automate deployments with AWS CodeDeploy.
- B. Create separate staging and production accounts to segregate deployment targets. Use AWS KMS to store environment-specific values Use CodePipeline to automate deployments with AWS CodeDeploy.
- C. Define naming conventions for staging and production environments to segregate deployment targets. Use Lambda environment variables to store environment-specific values. Use CodePipeline to automate deployments with AWS CodeDeploy
- D. Define tagging conventions for staging and production environments to segregate deployment targets. Use AWS KMS to store environment-specific values Use CodePipeline to automate deployments with AWS CodeDeploy.
Answer: B
NEW QUESTION # 227
You need the absolute highest possible network performance for a cluster computing application. You already selected homogeneous instance types supporting 10 gigabit enhanced networking, made sure that your workload was network bound, and put the instances in a placement group. What is the last optimization you can make?
- A. Bake an AMI for the instances and relaunch, so the instances are fresh in the placement group and do not have noisy neighbors.
- B. Turn off SYN/ACK on your TCP stack or begin using UDP for higher throughput.
- C. Use 9001 MTU instead of 1500 for Jumbo Frames, to raise packet body to packet overhead ratios.
- D. Segregate the instances into different peered VPCs while keeping them all in a placement group, so each one has its own Internet Gateway.
Answer: C
Explanation:
For instances that are collocated inside a placement group, jumbo frames help to achieve the maximum network throughput possible, and they are recommended in this case. For more information, see Placement Groups.
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/network_mtu.html#jumbo_frame_instances
NEW QUESTION # 228
A company uses AWS Organizations lo manage multiple accounts. Information security policies require that all unencrypted Amazon EBS volumes be marked as non-compliant. A DevOps engineer needs to automatically deploy the solution and ensure that this compliance check is always present.
Which solution will accomplish this?
- A. Create an AWS Config organizational rule lo check whether EBS encryption is enabled and deploy the rule using the AWS CLI. Create and apply an SCP lo prohibit slopping and deleting AWS Config across the organization.
- B. Deploy an IAM role to all accounts from a single trusted account. Build a pipeline with AWS CodePipeline with a stage m AWS Lambda to assume (he IAM role, and list all EBS volumes in the account Publish a report to Amazon S3.
- C. Create an SCP in Organizations. Set the policy to prevent the launch of Amazon EC2 instances without encryption on the EBS volumes using a conditional expression Apply the SCP to all AWS accounts. Use Amazon Athena to analyze the AWS CloudTrail output, looking for events that deny an ec2: Run instances action.
- D. Create an AWS CloudFormation template that defines an AWS Inspector rule to check whether EBS encryption is enabled. Save the template to an Amazon S3 bucket that has been shared with all accounts within the company. Update the account creation script pointing to the CloudFormation template in Amazon S3.
Answer: D
NEW QUESTION # 229
Two teams are working together on different portions of an architecture and are using AWS CloudFormation to manage their resources. One team administers operating system-level updates and patches, while the other team manages application-level dependencies and updates. The Application team must take the most recent AMI when creating new instances and deploying the application.
What is the MOST scalable method for linking these two teams and processes?
- A. The Operating System team uses CloudFormation stack to create an AWS CodePipeline pipeline that builds new AMIs. The team then places the AMI ARNs as parameters in AWS Systems Manager Parameter Store as part of the pipeline output. The Application team specifies a parameter of type ssmin their CloudFormation stack to obtain the most recent AMI ARN from the Parameter Store.
- B. The Operating System team maintains a nested stack that includes both the operating system and Application team templates. The Operating System team uses a stack update to deploy updates to the application stack whenever the Application team changes the application code.
- C. The Operating System team uses CloudFormation stack to create an AWS CodePipeline pipeline that builds new AMIs, then places the latest AMI ARNs in an encrypted Amazon S3 object as part of the pipeline output. The Application team uses a cross-stack reference within their own CloudFormation template to get that S3 object location and obtain the most recent AMI ARNs to use when deploying their application.
- D. The Operating System team uses CloudFormation to create new versions of their AMIs and lists the Amazon Resource names (ARNs) of the AMIs in an encrypted Amazon S3 object as part of the stack output section. The Application team uses a cross-stack reference to load the encrypted S3 object and obtain the most recent AMI ARNs.
Answer: B
NEW QUESTION # 230
......
The AWS DevOps Engineer certification is an advanced level exam that requires candidates to have a deep understanding of AWS services, infrastructure, automation, and monitoring tools. AWS-DevOps-Engineer-Professional exam is intended for experienced DevOps professionals who have a minimum of two years of hands-on experience in developing and administering AWS applications using DevOps practices.
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