Vendor: Amazon
Exam Code: DOP-C02
Exam Name: AWS Certified DevOps Engineer - Professional (DOP-C02)
Certification: Amazon Certifications
Total Questions: 461 Q&A
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Updated on: Jun 17, 2026
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You have an ELB setup in AWS with EC2 instances running behind it. You have been requested to monitor the incoming connections to the ELB. Which of the below options can suffice this requirement?
A. Use AWSCIoudTrail with your load balancer
B. Enable access logs on the load balancer
C. Use a CloudWatch Logs Agent
D. Create a custom metric CloudWatch filter on your load balancer
A DevOps engineer is developing an application for a company. The application needs to persist files to Amazon S3. The application needs to upload files with different security classifications that the company defines. These classifications include confidential, private, and public. Files that have a confidential classification must not be viewable by anyone other than the user who uploaded them. The application uses the IAM role of the user to call the S3 API operations.
The DevOps engineer has modified the application to add a DataClassification tag with the value of confidential and an Owner tag with the uploading user's ID to each confidential object that is uploaded to Amazon S3.
Which set of additional steps must the DevOps engineer take to meet the company's requirements?
A. Modify the S3 bucket's ACL to grant bucket-owner-read access to the uploading user's IAM role. Create an IAM policy that grants s3:GetObject operations on the S3 bucket when aws:ResourceTag/DataClassification equals confidential, and s3:ExistingObjectTag/Owner equals ${aws:userid}. Attach the policy to the IAM roles for users who require access to the S3 bucket.
B. Modify the S3 bucket policy to allow the s3:GetObject action when aws:ResourceTag/DataClassification equals confidential, and s3:ExistingObjectTag/Owner equals ${aws:userid}. Create an IAM policy that grants s3:GetObject operations on the S3 bucket. Attach the policy to the IAM roles for users who require access to the S3 bucket.
C. Modify the S3 bucket policy to allow the s3:GetObject action when aws:ResourceTag/DataClassification equals confidential, and aws:RequesttTag/Owner equals ${aws:userid}. Create an IAM policy that grants s3:GetObject operations on the S3 bucket. Attach the policy to the IAM roles for users who require access to the S3 bucket.
D. Modify the S3 bucket's ACL to grant authenticated-read access when aws:ResourceTag/DataClassification equals confidential, and s3:ExistingObjectTag/Owner equals ${aws:userid}. Create an IAM policy that grants s3:GetObject operations on the S3 bucket. Attach the policy to the IAM roles for users who require access to the S3 bucket.
An ecommerce company uses a large number of Amazon Elastic Block Store (Amazon EBS) backed Amazon EC2 instances. To decrease manual work across all the instances, a DevOps engineer is tasked with automating restart actions when EC2 instance retirement events are scheduled.
How can this be accomplished?
A. Create a scheduled Amazon EventBridge rule to run an AWS Systems Manager Automation runbook that checks if any EC2 instances are scheduled for retirement once a week. If the instance is scheduled for retirement, the runbook will hibernate the instance.
B. Enable EC2 Auto Recovery on all of the instances. Create an AWS Config rule to limit the recovery to occur during a maintenance window only.
C. Reboot all EC2 instances during an approved maintenance window that is outside of standard business hours. Set up Amazon CloudWatch alarms to send a notification in case any instance is failing EC2 instance status checks.
D. Set up an AWS Health Amazon EventBridge rule to run AWS Systems Manager Automation runbooks that stop and start the EC2 instance when a retirement scheduled event occurs.
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