Free Amazon DOP-C02 Exam Questions

Question 1

A DevOps engineer has been tasked to implement a reliable solution to maintain all of their Windows and Linux servers both in AWS and in on-premises data center. There should be a system that allows them to easily update the operating systems of their servers and apply the core application patches with minimum management overhead. The patches must be consistent across all levels in order to meet the company’s security compliance.

Which of the following is the MOST suitable solution that you should implement?

A : Store the login credentials of each Linux and Windows servers on the AWS Systems Manager Parameter Store. Use Systems Manager Resource Groups to set up one group for your Linux servers and another one for your Windows servers. Remotely login, run, and deploy the patch updates to all of your servers using the credentials stored in the Systems Manager Parameter Store and through the use of the Systems Manager Run Command.

B : velop a custom python script to install the latest OS patches on the Linux servers. Set up a scheduled job to automatically run this script using the cron scheduler on Linux servers. Enable Windows Update in order to automatically patch Windows servers or set up a scheduled task using Windows Task Scheduler to periodically run the python script.

C : Configure and install the AWS OpsWorks agent on all of your EC2 instances in your VPC and your on-premises servers. Set up an OpsWorks stack with separate layers for each OS then fetch a recipe from the Chef supermarket site (supermarket.chef.io) to automate the execution of the patch commands for each layer during maintenance windows.

D : nfigure and install AWS Systems Manager agent on all of the EC2 instances in your VPC as well as your physical servers on-premises. Use the Systems Manager Patch Manager service and specify the required Systems Manager Resource Groups for your hybrid architecture. Utilize a preconfigured patch baseline and then run scheduled patch updates during maintenance windows.

Answer: D

Question 2

A company uses AWS Control Tower and Organizations for a multi-account environment. It needs to create new accounts and ensure they receive a consistent baseline configuration. Which solution meets the requirement with the least overhead?

A : Use Account Factory Customization (AFC) blueprints for baseline setup.

B : Use Account Factory + StackSets post-setup.

C : Use Organizations with Lambda applying baseline via access role.

D : Use Organizations + StackSets manually.

Answer: A

Question 3

The company's DevOps engineer discovered that the errors were caused by RDS connection limits being reached. The DevOps engineer also discovered that more than 90% of the API requests are GET requests that read from the DB cluster. How should the DevOps engineer solve this problem with the LEAST development effort?

A : Migrate from Amazon RDS to Amazon DynamoDB. Add an Amazon CloudFront distribution in front of the API Gateway REST API.

B : Add a proxy from Amazon RDS Proxy in front of the RDS DB cluster. Enable API caching in API Gateway.

C : Add an Amazon RDS Proxy in front of the RDS database cluster. Provision an Amazon ElastiCache (Redis OSS) cluster.

D : Migrate from Amazon RDS to Amazon DynamoDB. Enable API caching in API Gateway.

Answer: B

Question 4

An American tech company used an AWS CloudFormation template to deploy its static corporate website hosted on Amazon S3 in the US East (N. Virginia) region. The template defines an Amazon S3 bucket with a Lambda-backed custom resource that downloads the content from a file server into the bucket. There is a new task for the DevOps Engineer to move the website to the US West (Oregon) region to better serve its customers on the West Coast with lower latency. However, the application stack could not be deleted successfully in CloudFormation.

Which among the following options shows the root cause of this issue, and how can the DevOps Engineer mitigate this problem for current and future versions of the website?

A : CloudFormation stack deletion fails for an S3 bucket that is used as a static web hosting. To fix the issue, modify the CloudFormation template to remove the website configuration for the S3 bucket.

B : CloudFormation stack deletion fails for an S3 bucket because the DeletionPolicy attribute is set to Snapshot. To fix the issue, set the DeletionPolicy to Delete instead.

C : CloudFormation stack deletion fails for an S3 bucket that still has contents. To fix the issue, modify the Lambda function code of the custom resource to recursively empty the bucket if the stack is selected for deletion.

D : CloudFormation stack deletion fails for an S3 bucket because it is not yet empty. To fix the issue, set the DeletionPolicy to ForceDelete instead.

Answer: C

Question 5

A company uses Amazon Redshift as its data warehouse solution. The company wants to create a dashboard to view changes to the Redshift users and the queries the users perform. Which combination of steps will meet this requirement? (Select TWO.)

A : Create an Amazon CloudWatch log group. Create an AWS CloudTrail trail that writes to the CloudWatch log group.

B : Create a new Amazon S3 bucket. Configure default audit logging on the Redshift cluster. Configure the S3 bucket as the target.

C : Configure the Redshift cluster database audit logging to include user activity logs. Configure Amazon CloudWatch as the target.

D : Create an Amazon CloudWatch dashboard that has a log widget. Configure the widget to display user details from the Redshift logs.

E : Create an AWS Lambda function that uses Amazon Athena to query the Redshift logs. Create an Amazon CloudWatch dashboard that has a custom widget type that uses the Lambda function.

Answer: B,D