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Amazon DOP-C02 Exam Overview:

Certification Vendor:	Amazon AWS
Exam Name:	AWS Certified DevOps Engineer - Professional
Exam Number:	DOP-C02
Exam Price:	300 USD
Certificate Validity Period:	3 years
Available Languages:	Simplified Chinese, Korean, Japanese, Traditional Chinese, English
Passing Score:	750 (scaled score 100–1000)
Exam Format:	Multiple response, Multiple choice
Real Exam Qty:	75 (65 scored, 10 unscored)
Exam Duration:	180 minutes
Related Certifications:	AWS Certified Developer - Associate AWS Certified SysOps Administrator - Associate
Recommended Training:	AWS Training and Certification AWS Certified DevOps Engineer - Professional Exam Guide
Exam Registration:	AWS Certification Registration Pearson VUE Registration
Sample Questions:	Amazon DOP-C02 Sample Questions
Exam Way:	Online proctored or onsite at testing centers
Pre Condition:	Recommended: AWS Certified Developer - Associate or AWS Certified SysOps Administrator - Associate, plus 2+ years of hands-on experience provisioning, operating, and managing AWS environments
Official Syllabus URL:	https://docs.aws.amazon.com/aws-certification/latest/devops-engineer-professional-02/devops-engineer-professional-02.html

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Amazon DOP-C02: AWS Certified DevOps Engineer - Professional Exam is a highly recognized certification exam for DevOps engineers. It is designed to validate a candidate's expertise in implementing and managing continuous delivery systems and methodologies using AWS services and tools. AWS Certified DevOps Engineer - Professional certification exam is ideal for professionals who want to demonstrate their advanced knowledge and skills in DevOps practices and AWS technologies.

Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q267-Q272):

NEW QUESTION # 267
A company streams logs to CloudWatch Logs. Logs must be searchable for 30 days, low-latency accessible for 90 days, and occasionally retrieved after 180 days.
Which solution is MOST cost-effective?

A. Configure retention of 30 days and stream to S3 via Kinesis Data Firehose. Transition to S3 One Zone-IA and Glacier Flexible Retrieval.
B. Configure retention of 30 days and stream via Kinesis Data Streams, then store in S3 Standard-IA and Glacier Instant Retrieval.
C. Configure log retention of 30 days and export to S3 via Kinesis Data Streams. Use S3 Lifecycle policies.
D. Configure retention of 30 days and stream via Kinesis Data Firehose to S3. Transition to S3 Standard-IA (90 days) and Glacier Deep Archive (180 days).

Answer: D

Explanation:
Exporting logs using CloudWatch subscription filters + Firehose → S3 enables long-term archival. S3 lifecycle transitions optimize cost with Standard-IA (low-latency) and Deep Archive (long-term retention). This matches AWS best practice for cost-effective log retention.

NEW QUESTION # 268
A company is using an AWS CodeBuild project to build and package an application. The packages are copied to a shared Amazon S3 bucket before being deployed across multiple AWS accounts.
The buildspec.yml file contains the following:

The DevOps engineer has noticed that anybody with an AWS account is able to download the artifacts.
What steps should the DevOps engineer take to stop this?

A. Modify the post_build command to remove --acl authenticated-read and configure a bucket policy that allows read access to the relevant AWS accounts only.
B. Modify the post_build command to use --acl public-read and configure a bucket policy that grants read access to the relevant AWS accounts only.
C. Configure a default ACL for the S3 bucket that defines the set of authenticated users as the relevant AWS accounts only and grants read-only access.
D. Create an S3 bucket policy that grants read access to the relevant AWS accounts and denies read access to the principal "*".

Answer: A

Explanation:
Explanation
When setting the flag authenticated-read in the command line, the owner gets FULL_CONTROL. The AuthenticatedUsers group (Anyone with an AWS account) gets READ access. Reference:
https://docs.aws.amazon.com/AmazonS3/latest/userguide/acl-overview.html

NEW QUESTION # 269
A company wants to improve its security practices by enforcing least privilege across all projects. Developers must be able to access Amazon EC2 resources but not Amazon RDS resources. Database administrators must have access only to Amazon RDS resources.
Every employee has a unique IAM user. There are already pre-existing IAM policies for developer and database administrator job functions. All AWS resources are already tagged with appropriate project tags. All the IAM users are tagged with the appropriate project and job function.
The company must ensure that each employee can access only the project that the employee is working on.
Which solution will meet these requirements? (Select THREE.)

A. Tag the pre-existing IAM policies with the appropriate projects and job functions. Attach the modified policies to IAM roles for each job function.
B. For each project, create one IAM group for developers and one IAM group for database administrators. Add the appropriate users to each group so the users can assume their respective IAM roles.
C. Create an IAM policy that allows users to assume a role only when the ResourceTag values match the PrincipalTag values for project tags and job function tags. Attach the new policy to all IAM users.
D. Create an IAM policy that allows users to assume a role only when the ResourceTag values match the PrincipalTag values for project tags and job function tags. Attach the new policy to the IAM roles for each job function.
E. For each project, create one IAM role for developers and one IAM role for database administrators. Tag the IAM roles with the corresponding projects and job functions.
F. Modify the pre-existing IAM policies to include a StringEquals condition that compares the ResourceTag for projects with the PrincipalTag value. Attach the modified policies to the IAM roles for each job function.

Answer: C,E,F

Explanation:
The requirements describe a classic attribute-based access control (ABAC) model using AWS IAM. The company already has consistent tagging across users and resources, which is ideal for ABAC and least-privilege enforcement at scale.
First, Option A is required because IAM roles should represent job functions (developer vs. database administrator) and be scoped per project. Creating separate roles per project and job function allows permissions to be isolated cleanly and prevents cross-project access.
Second, Option B enforces project-level isolation at the policy level. By modifying the existing job-function policies to include a StringEquals condition that compares aws:ResourceTag/Project with aws:PrincipalTag/Project, access is automatically limited to only those resources that belong to the same project as the user. This is an AWS-recommended ABAC pattern and avoids policy sprawl.
Third, Option C is required so users can assume roles only when their tags match the role's tags. An IAM policy attached to users that allows sts:AssumeRole only if both project and job function tags match ensures users cannot assume roles outside their assigned scope.
Options D, E, and F either misapply policies to the wrong entities, misuse tagging on policies (which IAM does not evaluate for authorization), or introduce unnecessary group-based management that conflicts with the ABAC design.
Therefore, A, B, and C together provide least privilege, project isolation, and scalable access control with minimal ongoing administration.

NEW QUESTION # 270
A company has a single AWS account that runs hundreds of Amazon EC2 instances in a single AWS Region. New EC2 instances are launched and terminated each hour in the account. The account also includes existing EC2 instances that have been running for longer than a week.
The company's security policy requires all running EC2 instances to use an EC2 instance profile. If an EC2 instance does not have an instance profile attached, the EC2 instance must use a default instance profile that has no IAM permissions assigned.
A DevOps engineer reviews the account and discovers EC2 instances that are running without an instance profile. During the review, the DevOps engineer also observes that new EC2 instances are being launched without an instance profile.
Which solution will ensure that an instance profile is attached to all existing and future EC2 instances in the Region?

A. Configure the iam-role-managed-policy-check AWS Config managed rule with a trigger type of configuration changes. Configure an automatic remediation action that invokes an AWS Lambda function to attach the default instance profile to the EC2 instances.
B. Configure an Amazon EventBridge rule that reacts to EC2 RunInstances API calls. Configure the rule to invoke an AWS Lambda function to attach the default instance profile to the EC2 instances.
C. Configure the ec2-instance-profile-attached AWS Config managed rule with a trigger type of configuration changes. Configure an automatic remediation action that invokes an AWS Systems Manager Automation runbook to attach the default instance profile to the EC2 instances.
D. Configure an Amazon EventBridge rule that reacts to EC2 StartInstances API calls. Configure the rule to invoke an AWS Systems Manager Automation runbook to attach the default instance profile to the EC2 instances.

Answer: C

Explanation:
https://docs.aws.amazon.com/config/latest/developerguide/ec2-instance-profile-attached.html

NEW QUESTION # 271
A company is examining its disaster recovery capability and wants the ability to switch over its daily operations to a secondary AWS Region. The company uses AWS CodeCommit as a source control tool in the primary Region.
A DevOps engineer must provide the capability for the company to develop code in the secondary Region. If the company needs to use the secondary Region, developers can add an additional remote URL to their local Git configuration.
Which solution will meet these requirements?

A. Create a CodeCommit repository in the secondary Region. Create an AWS CodeBuild project to perform a Git mirror operation of the primary Region's CodeCommit repository to the secondary Region's CodeCommit repository. Create an AWS Lambda function that invokes the CodeBuild project. Create an Amazon EventBridge rule that reacts to merge events in the primary Region's CodeCommit repository. Configure the EventBridge rule to invoke the Lambda function.
B. Create an Amazon S3 bucket in the secondary Region. Create an AWS Fargate task to perform a Git mirror operation of the primary Region's CodeCommit repository and copy the result to the S3 bucket. Create an AWS Lambda function that initiates the Fargate task. Create an Amazon EventBridge rule that reacts to merge events in the CodeCommit repository. Configure the EventBridge rule to invoke the Lambda function.
C. Create an AWS CodeArtifact repository in the secondary Region. Create an AWS CodePipeline pipeline that uses the primary Region's CodeCommit repository for the source action. Create a Cross-Region stage in the pipeline that packages the CodeCommit repository contents and stores the contents in the CodeArtifact repository when a pull request is merged into the CodeCommit repository.
D. Create an AWS Cloud9 environment and a CodeCommit repository in the secondary Region. Configure the primary Region's CodeCommit repository as a remote repository in the AWS Cloud9 environment. Connect the secondary Region's CodeCommit repository to the AWS Cloud9 environment.

Answer: A

Explanation:
The best solution to meet the disaster recovery capability and allow developers to switch over to a secondary AWS Region for code development is option A. This involves creating a CodeCommit repository in the secondary Region and setting up an AWS CodeBuild project to perform a Git mirror operation of the primary Region's CodeCommit repository to the secondary Region's repository. An AWS Lambda function is then created to invoke the CodeBuild project. Additionally, an Amazon EventBridge rule is configured to react to merge events in the primary Region's CodeCommit repository and invoke the Lambda function12. This setup ensures that the secondary Region's repository is always up-to-date with the primary repository, allowing for a seamless transition in case of a disaster recovery event1.
Reference:
AWS CodeCommit User Guide on resilience and disaster recovery1.
AWS Documentation on monitoring CodeCommit events in Amazon EventBridge and Amazon CloudWatch Events2.

NEW QUESTION # 272
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