Free Amazon DOP-C02 Exam Questions

Question 1

A leading software development company has various web applications hosted in an Auto Scaling group of EC2 instances which are designed for high availability and fault tolerance. They are using AWS CloudFormation to easily manage their cloud infrastructure as code as well as for deployment. Currently, they have to manually update their CloudFormation templates for every new available AMI of their application. This procedure is prone to human errors and entails a high management overhead on their deployment process.

Which of the following is the MOST suitable and cost-effective solution that the DevOps engineer should implement to automate this process?

A : ll the new AMI IDs using an AWS Lambda-backed custom resource in the CloudFormation template. Reference the AMI ID that the custom resource fetched in the launch configuration resource block.

B : nfigure the CloudFormation template to use AMI mappings. Integrate AWS Lambda and Amazon CloudWatch Events to create a function that regularly runs every hour to detect new AMIs as well as update the mapping in the template. Reference the AMI mappings in the launch configuration resource block.

C : nfigure the AWS CloudFormation template to use conditional statements to check if new AMIs are available. Fetch the new AMI ID using the cfn-init helper script and reference it in the launch configuration resource block.

D : unch an EC2 instance to run a custom shell script every hour to check for new AMIs. The script should update the launch configuration resource block of the CloudFormation template with the new AMI ID if there are new ones available.

Answer: A

Question 2

You have developed an app that lets users quickly upload and share image snippets across various platforms such as mobile app, desktop web browser, and third party instant messaging apps. Your app relies on a Lambda function that detects each request’s User-Agent and automatically sends a corresponding image resolution based on the device. You want to have a consistent and fast experience for all your users around the world.

Which of the following options will you implement?

A : load your function on S3 and set it as CloudFront origin to run it.

B : ploy your function on Amazon API Gateway and set up an Edge-optimized API endpoint.

C : eate your function on Lambda and deploy it with Lambda@Edge.

D : eate your function on AWS Lambda and set it as a CloudFront origin.

Answer: C

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

A company has a web application that is hosted on Amazon EC2 instances. The company is deploying the application into multiple AWS Regions. The application consists of dynamic content such as WebSocket-based real-time product updates. The company uses Amazon Route 53 to manage all DNS records. Which solution will provide multi-Region access to the application with the LEAST latency?

A : Deploy an Application Load Balancer (ALB) in front of the EC2 instances in each Region. Create a Route 53 A record with a latency-based routing policy. Add IP addresses of the ALBs as the value of the record.

B : Deploy an Application Load Balancer (ALB) in front of the EC2 instances in each Region. Deploy an Amazon CloudFront distribution with an origin group that contains the ALBs as origins. Create a Route 53 alias record that points to the CloudFront distribution's DNS address.

C : Deploy a Network Load Balancer (NLB) in front of the EC2 instances in each Region. Create a Route 53 A record with a multivalue answer routing policy. Add IP addresses of the NLBs as the value of the record.

D : Deploy a Network Load Balancer (NLB) in front of the EC2 instances in each Region. Deploy an AWS Global Accelerator standard accelerator with an endpoint group for each NLB. Create a Route 53 alias record that points to the accelerator's DNS address.

Answer: A

Question 5

A company has chosen AWS to host a new application. The company needs to implement a multi-account strategy. A DevOps engineer creates a new AWS account and an organization in AWS Organizations. The DevOps engineer also creates the OU structure for the organization and sets up a landing zone by using AWS Control Tower.

The DevOps engineer must implement a solution that automatically deploys resources for new accounts that users create through AWS Control Tower Account Factory. When a user creates a new account, the solution must apply AWS CloudFormation templates and SCPs that are customized for the OU or the account to automatically deploy all the resources that are attached to the account. All the OUs are enrolled in AWS Control Tower.

Which solution will meet these requirements in the MOST automated way?

A : AWS Service Catalog with AWS Control Tower. Create portfolios and products in AWS Service Catalog. Grant granular permissions to provision these resources. Deploy SCPs by using the AWS CLI and JSON documents

B : ploy CloudFormation stack sets by using the required templates. Enable automatic deployment. Deploy stack instances to the required accounts. Deploy a CloudFormation stack set to the organization’s management account to deploy SCPs.

C : eate an Amazon EventBridge rule to detect the CreateManagedAccount event. Configure AWS Service Catalog as the target to deploy resources to any new accounts. Deploy SCPs by using the AWS CLI and JSON documents.

D : ploy the Customizations for AWS Control Tower (CfCT) solution. Use an AWS CodeCommit repository as the source. In the repository, create a custom package that includes the CloudFormation templates and the SCP JSON documents.

Answer: D