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Amazon DOP-C02 Exam Overview:

Certification Vendor:	Amazon AWS
Exam Name:	AWS Certified DevOps Engineer - Professional
Exam Number:	DOP-C02
Certificate Validity Period:	3 years
Exam Duration:	180 minutes
Real Exam Qty:	75 (65 scored, 10 unscored)
Related Certifications:	AWS Certified Developer - Associate AWS Certified SysOps Administrator - Associate
Passing Score:	750 (scaled score 100–1000)
Available Languages:	Traditional Chinese, Simplified Chinese, English, Korean, Japanese
Exam Price:	300 USD
Exam Format:	Multiple choice, Multiple response
Recommended Training:	AWS Training and Certification AWS Certified DevOps Engineer - Professional Exam Guide
Exam Registration:	Pearson VUE Registration AWS Certification 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 exam is a professional-level certification that builds on the foundational knowledge of AWS services and DevOps practices. It covers a wide range of topics that include continuous delivery and deployment, infrastructure as code, monitoring and logging, security, and compliance. DOP-C02 Exam also tests the candidate's ability to integrate AWS services with third-party tools and services, and to troubleshoot and resolve issues related to AWS-based applications.

Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q407-Q412):

NEW QUESTION # 407
A company wants to use AWS development tools to replace its current bash deployment scripts. The company currently deploys a LAMP application to a group of Amazon EC2 instances behind an Application Load Balancer (ALB). During the deployments, the company unit tests the committed application, stops and starts services, unregisters and re-registers instances with the load balancer, and updates file permissions. The company wants to maintain the same deployment functionality through the shift to using AWS services.
Which solution will meet these requirements?

A. Use AWS CodePipeline to move the application source code from the AWS CodeCommit repository to AWS CodeDeploy. Use CodeDeploy to test the application. Use CodeDeploy's appspec.yml file to restart services and update permissions without a custom script. Use AWS CodeBuild to unregister and re-register instances with the ALB.
B. Use AWS CodeBuild to test the application. Use bash scripts invoked by AWS CodeDeploy's appspec.
yml file to restart services, and deregister and register instances with the ALB. Use the appspec.yml file to update file permissions without a custom script.
C. Use AWS CodePipeline to trigger AWS CodeBuild to test the application. Use bash scripts invoked by AWS CodeDeploy's appspec.yml file to restart services. Unregister and re-register the instances in the AWS CodeDeploy deployment group with the ALB. Update the appspec.yml file to update file permissions without a custom script.
D. Use AWS CodePipeline to move the application from the AWS CodeCommit repository to AWS CodeDeploy. Use CodeDeploy's deployment group to test the application, unregister and re-register instances with the ALB. and restart services. Use the appspec.yml file to update file permissions without a custom script.

Answer: C

Explanation:
https://aws.amazon.com/blogs/devops/how-to-test-and-debug-aws-codedeploy-locally-before-you-ship-your- code/#:~:text=You%20can%20test%20application%20code,local%20server%20or%20EC2%20instance.

NEW QUESTION # 408
A company uses Amazon RDS for Microsoft SQL Server as its primary database. They need high availability within and across AWS Regions, with an RPO <1 min and RTO <10 min. Route 53 CNAME is used for the DB endpoint and must redirect to standby during failover.
Which solution meets these requirements?

A. Deploy Single-AZ RDS and use AWS DMS to continuously replicate to another Region. Use CloudWatch alarms for failover notification.
B. Deploy RDS Multi-AZ with snapshots copied every 5 minutes; use Lambda to restore snapshot and update Route 53 on failover.
C. Deploy Single-AZ RDS and use AWS Backup for cross-Region backups every 30 seconds. Use automation to restore and update Route 53 during failover.
D. Deploy an Amazon RDS for SQL Server Multi-AZ DB cluster with cross-Region read replicas. Use automation to promote replica and update Route 53.

Answer: D

Explanation:
* RDS Multi-AZ withcross-Region read replicasprovides synchronous replication with near-zero data loss and supports fast failover with RPO < 1 min and RTO < 10 min.
* Automation can promote replicas and update Route 53 CNAME to redirect traffic during failover.
* Options B, C, and D rely on snapshots, backups, or DMS, which cannot guarantee such low RPO/RTO and require manual intervention or complex automation.
References:
Amazon RDS Multi-AZ Deployments
Amazon RDS Cross-Region Read Replicas

NEW QUESTION # 409
A DevOps engineer is creating an AWS CloudFormation template to deploy a web service. The web service will run on Amazon EC2 instances in a private subnet behind an Application Load Balancer (ALB). The DevOps engineer must ensure that the service can accept requests from clients that have IPv6 addresses.
What should the DevOps engineer do with the CloudFormation template so that IPv6 clients can access the web service?

A. Replace the ALB with a Network Load Balancer (NLB). Add an IPv6 CIDR block to the VPC and subnets for the NLB, and assign the NLB an IPv6 Elastic IP address.
B. Add an IPv6 CIDR block to the VPC and the private subnet for the EC2 instances. Create route table entries for the IPv6 network, use EC2 instance types that support IPv6, and assign IPv6 addresses to each EC2 instance.
C. Add an IPv6 CIDR block to the VPC and subnets for the ALB. Create a listener on port 443. and specify the dualstack IP address type on the ALB. Create a target group, and add the EC2 instances as targets. Associate the target group with the ALB.
D. Assign each EC2 instance an IPv6 Elastic IP address. Create a target group, and add the EC2 instances as targets. Create a listener on port 443 of the ALB, and associate the target group with the ALB.

Answer: D

NEW QUESTION # 410
A company uses an AWS CodeArtifact repository to store Python packages that the company developed internally. A DevOps engineer needs to use AWS CodeDeploy to deploy an application to an Amazon EC2 instance. The application uses a Python package that is stored in the CodeArtifact repository. A BeforeInstall lifecycle event hook will install the package.
The DevOps engineer needs to grant the EC2 instance access to the CodeArtifact repository.
Which solution will meet this requirement?

A. Configure a resource-based policy for the CodeArtifact repository that allows the Read-FromRepository action for the EC2 instance principal.
B. Create an instance profile that contains an IAM role that has access to CodeArtifact. Associate the instance profile with the EC2 instance. Use the aws codeartifact login CLI command on the instance.
C. Configure ACLs on the CodeArtifact repository to allow the EC2 instance to access the Python package.
D. Create a service-linked role for CodeArtifact. Associate the role with the EC2 instance. Use the aws codeartifact get-authorization-token CLI command on the instance.

Answer: B

Explanation:
To allow an EC2 instance to access CodeArtifact, an IAM role attached via an instance profile must be granted permissions to access the CodeArtifact repository. The EC2 instance assumes this role.
The instance then uses the AWS CLI command aws codeartifact login to authenticate and configure the package manager (e.g., pip) to use the CodeArtifact repository. This command obtains an authorization token and sets up repository credentials securely on the instance.
Service-linked roles (Option A) are managed by AWS services, not used for instance access. CodeArtifact does not support ACLs (Option C), and resource-based policies (Option B) do not grant access to EC2 instances by principal.
This method is standard for securely managing credentials and access to CodeArtifact in automated deployments.
Reference:
AWS CodeArtifact Access Control and Authentication: " Use IAM roles attached to compute resources and the aws codeartifact login command to authenticate to repositories. " (AWS CodeArtifact Developer Guide)

NEW QUESTION # 411
A company uses Amazon RDS for Microsoft SQL Server as its primary database for applications. The company needs to ensure high availability within and across AWS Regions.
An Amazon Route 53 CNAME record is configured for the database endpoint. The applications connect to the database endpoint. The company must redirect application traffic to a standby database during a failover event. The company must maintain an RPO of less than 1 minute and an RTO of less than 10 minutes.
Which solution will meet these requirements?

A. Deploy an Amazon RDS for SQL Server Multi-AZ DB cluster deployment. Set up automated snapshots to be copied to another Region every 5 minutes. Use AWS Lambda to restore the latest snapshot in the secondary Region during failover.
B. Deploy an Amazon RDS for SQL Server Single-AZ DB instance. Use AWS Database Migration Service (AWS DMS) to replicate data continuously to an RDS DB instance in another Region. Use Amazon CloudWatch alarms to notify the company about failover events.
C. Deploy an Amazon RDS for SQL Server Multi-AZ DB cluster deployment that uses cross-Region read replicas. Use automation to promote the read replica to a standalone instance and to update the Route 53 record.
D. Deploy an Amazon RDS for SQL Server Single-AZ DB instance. Configure AWS Backup to create cross-Region backups every 30 seconds. Use automation to restore the latest backup and to update the Route 53 record during failover.

Answer: C

Explanation:
The requirements demand very low data loss (RPO < 1 minute) and fast recovery (RTO < 10 minutes) across Regions. Snapshot/backup-based approaches (B, D) generally cannot meet an RPO under 1 minute (and restoring snapshots/backups typically pushes RTO higher than 10 minutes for many real-world DB sizes and restore times).
Option A is the only choice that is explicitly built around near-real-time replication to another Region (cross-Region replica) and an operational pattern to promote the standby and update Route 53 to redirect applications quickly during failover.
Multi-AZ addresses in-Region high availability, while the cross-Region replica + promotion addresses cross-Region DR with low RPO and acceptable RTO when automated.
Why the others don't meet the stated RPO/RTO:
B: Copying snapshots every 5 minutes immediately violates RPO < 1 minute.
C: DMS replication could potentially be low-latency, but the option only mentions notifications (no automated failover/redirect) and does not provide the clearest/most direct managed HA+DR pattern for the required RTO < 10 minutes.

NEW QUESTION # 412
......

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