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Amazon AWS DevOps Engineer Professional Exam (page: 2)
Amazon AWS DevOps Engineer - Professional (DOP-C01)
Updated on: 09-Feb-2026

Viewing Page 2 of 27
AWS DevOps Engineer Professional PDF 208 Questions

A software company wants to automate the build process for a project where the code is stored in GitHub. When the repository is updated, source code should be compiled, tested, and pushed to Amazon S3.
Which combination of steps would address these requirements? (Choose three.)

  1. Add a buildspec.yml le to the source code with build instructions.
  2. Con gure a GitHub webhook to trigger a build every time a code change is pushed to the repository.
  3. Create an AWS CodeBuild project with GitHub as the source repository.
  4. Create an AWS CodeDeploy application with the Amazon EC2/On-Premises compute platform.
  5. Create an AWS OpsWorks deployment with the install dependencies command.
  6. Provision an Amazon EC2 instance to perform the build.

Answer(s): A,B,C



An online retail company based in the United States plans to expand its operations to Europe and Asia in the next six months. Its product currently runs on
Amazon EC2 instances behind an Application Load Balancer. The instances run in an Amazon EC2 Auto Scaling group across multiple Availability Zones. All data is stored in an Amazon Aurora database instance.
When the product is deployed in multiple regions, the company wants a single product catalog across all regions, but for compliance purposes, its customer information and purchases must be kept in each region.
How should the company meet these requirements with the LEAST amount of application changes?

  1. Use Amazon Redshift for the product catalog and Amazon DynamoDB tables for the customer information and purchases.
  2. Use Amazon DynamoDB global tables for the product catalog and regional tables for the customer information and purchases.
  3. Use Aurora with read replicas for the product catalog and additional local Aurora instances in each region for the customer information and purchases.
  4. Use Aurora for the product catalog and Amazon DynamoDB global tables for the customer information and purchases.

Answer(s): C



A company wants to ensure that their EC2 instances are secure. They want to be noti ed if any new vulnerabilities are discovered on their instances, and they also want an audit trail of all login activities on the instances.
Which solution will meet these requirements?

  1. Use AWS Systems Manager to detect vulnerabilities on the EC2 instances. Install the Amazon Kinesis Agent to capture system logs and deliver them to Amazon S3.
  2. Use AWS Systems Manager to detect vulnerabilities on the EC2 instances. Install the Systems Manager Agent to capture system logs and view login activity in the CloudTrail console.
  3. Con gure Amazon CloudWatch to detect vulnerabilities on the EC2 instances. Install the AWS Con g daemon to capture system logs and view them in the AWS Con g console.
  4. Con gure Amazon Inspector to detect vulnerabilities on the EC2 instances. Install the Amazon CloudWatch Agent to capture system logs and record them via Amazon CloudWatch Logs.

Answer(s): D



A DevOps Engineer needs to back up sensitive Amazon S3 objects that are stored within an S3 bucket with a private bucket policy using the S3 cross-region replication functionality. The objects need to be copied to a target bucket in a different AWS Region and account. Which actions should be performed to enable this replication? (Choose three.)

  1. Create a replication IAM role in the source account.
  2. Create a replication IAM role in the target account.
  3. Add statements to the source bucket policy allowing the replication IAM role to replicate objects.
  4. Add statements to the target bucket policy allowing the replication IAM role to replicate objects.
  5. Create a replication rule in the source bucket to enable the replication.
  6. Create a replication rule in the target bucket to enable the replication.

Answer(s): A,D,E



A company is using Amazon EC2 for various workloads. Company policy requires that instances be managed centrally to standardize con gurations. These con gurations include standard logging, metrics, security assessments, and weekly patching.
How can the company meet these requirements? (Choose three.)

  1. Use AWS Con g to ensure all EC2 instances are managed by Amazon Inspector.
  2. Use AWS Con g to ensure all EC2 instances are managed by AWS Systems Manager.
  3. Use AWS Systems Manager to install and manage Amazon Inspector, Systems Manager Patch Manager, and the Amazon CloudWatch agent on all instances.
  4. Use Amazon Inspector to install and manage AWS Systems Manager, Systems Manager Patch Manager, and the Amazon CloudWatch agent on all instances.
  5. Use AWS Systems Manager maintenance windows with Systems Manager Run Command to schedule Systems Manager Patch Manager tasks. Use the Amazon CloudWatch agent to schedule Amazon Inspector assessment runs.
  6. Use AWS Systems Manager maintenance windows with Systems Manager Run Command to schedule Systems Manager Patch Manager tasks. Use Amazon CloudWatch Events to schedule Amazon Inspector assessment runs.

Answer(s): B,C,F



A business has an application that consists of ve independent AWS Lambda functions. The DevOps Engineer has built a CI/CD pipeline using AWS CodePipeline and AWS CodeBuild that builds, tests, packages, and deploys each Lambda function in sequence. The pipeline uses an Amazon CloudWatch Events rule to ensure the pipeline execution starts as quickly as possible after a change is made to the application source code.
After working with the pipeline for a few months, the DevOps Engineer has noticed the pipeline takes too long to complete. What should the DevOps Engineer implement to BEST improve the speed of the pipeline?

  1. Modify the CodeBuild projects within the pipeline to use a compute type with more available network throughput.
  2. Create a custom CodeBuild execution environment that includes a symmetric multiprocessing con guration to run the builds in parallel.
  3. Modify the CodePipeline con guration to execute actions for each Lambda function in parallel by specifying the same runOrder.
  4. Modify each CodeBuild project to run within a VPC and use dedicated instances to increase throughput.

Answer(s): C



A company is creating a software solution that executes a speci c parallel-processing mechanism. The software can scale to tens of servers in some special scenarios. This solution uses a proprietary library that is license-based, requiring that each individual server have a single, dedicated license installed. The company has 200 licenses and is planning to run 200 server nodes concurrently at most.
The company has requested the following features:
A mechanism to automate the use of the licenses at scale.
Creation of a dashboard to use in the future to verify which licenses are available at any moment.
What is the MOST effective way to accomplish these requirements?

  1. Upload the licenses to a private Amazon S3 bucket. Create an AWS CloudFormation template with a Mappings section for the licenses. In the template, create an Auto Scaling group to launch the servers. In the user data script, acquire an available license from the Mappings section. Create an Auto Scaling lifecycle hook, then use it to update the mapping after the instance is terminated.
  2. Upload the licenses to an Amazon DynamoDB table. Create an AWS CloudFormation template that uses an Auto Scaling group to launch the servers. In the user data script, acquire an available license from the DynamoDB table. Create an Auto Scaling lifecycle hook, then use it to update the mapping after the instance is terminated.
  3. Upload the licenses to a private Amazon S3 bucket. Populate an Amazon SQS queue with the list of licenses stored in S3. Create an AWS CloudFormation template that uses an Auto Scaling group to launch the servers. In the user data script acquire an available license from SQS.
    Create an Auto Scaling lifecycle hook, then use it to put the license back in SQS after the instance is terminated.
  4. Upload the licenses to an Amazon DynamoDB table. Create an AWS CLI script to launch the servers by using the parameter --count, with min:max instances to launch. In the user data script, acquire an available license from the DynamoDB table. Monitor each instance and, in case of failure, replace the instance, then manually update the DynamoDB table.

Answer(s): B



A DevOps Engineer administers an application that manages video les for a video production company. The application runs on Amazon EC2 instances behind an ELB Application Load Balancer. The instances run in an Auto Scaling group across multiple Availability Zones. Data is stored in an Amazon RDS PostgreSQL
Multi-AZ DB instance, and the video les are stored in an Amazon S3 bucket. On a typical day, 50 GB of new video are added to the S3 bucket. The Engineer must implement a multi-region disaster recovery plan with the least data loss and the lowest recovery times. The current application infrastructure is already described using AWS CloudFormation.
Which deployment option should the Engineer choose to meet the uptime and recovery objectives for the system?

  1. Launch the application from the CloudFormation template in the second region, which sets the capacity of the Auto Scaling group to 1.
    Create an Amazon RDS read replica in the second region. In the second region, enable cross-region replication between the original S3 bucket and a new S3 bucket. To fail over, promote the read replica as master. Update the CloudFormation stack and increase the capacity of the Auto Scaling group.
  2. Launch the application from the CloudFormation template in the second region, which sets the capacity of the Auto Scaling group to 1.
    Create a scheduled task to take daily Amazon RDS cross-region snapshots to the second region. In the second region, enable cross-region replication between the original S3 bucket and Amazon Glacier. In a disaster, launch a new application stack in the second region and restore the database from the most recent snapshot.
  3. Launch the application from the CloudFormation template in the second region, which sets the capacity of the Auto Scaling group to 1. Use Amazon CloudWatch Events to schedule a nightly task to take a snapshot of the database, copy the snapshot to the second region, and replace the DB instance in the second region from the snapshot. In the second region, enable cross-region replication between the original S3 bucket and a new S3 bucket. To fail over, increase the capacity of the Auto Scaling group.
  4. Use Amazon CloudWatch Events to schedule a nightly task to take a snapshot of the database and copy the snapshot to the second region.
    Create an AWS Lambda function that copies each object to a new S3 bucket in the second region in response to S3 event noti cations. In the second region, launch the application from the CloudFormation template and restore the database from the most recent snapshot.

Answer(s): A



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