Free Amazon DOP-C02 Exam Questions

Question 1

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 2

Your API servers are hosted on a cluster of EC2 instances deployed using Elastic Beanstalk. You need to deploy a new version and also change the instance type of the instances from m4.large to m4.xlarge. Since this is a production workload already operating at 80?pacity, you want to ensure that the workload on the current EC2 instances does not increase while doing the deployment.

Which of the following deployment policy will you implement which will incur the LEAST amount of cost?

A : Immutable as deployment policy to deploy the new version with complete capacity.

B : Rolling as the deployment policy to maintain the capacity of the cluster during the deployment.

C : All at once as deployment policy to deploy the new version with complete capacity.

D : Rolling with additional batch as deployment policy to maintain the capacity of the cluster during the deployment.

Answer: D

Question 3

A DevOps engineer must implement a solution that immediately terminates Amazon EC2 instances in Auto Scaling groups when cryptocurrency mining activity is detected. Which solution will meet these requirements with the LEAST development effort?

A : Configure Amazon Route 53 query logs # CloudWatch # Lambda every 5 mins to detect mining-related domains and terminate EC2 instances.

B : Configure VPC Flow Logs # S3 # Lambda every 5 mins # Athena query # terminate EC2 instances.

C : Enable Amazon GuardDuty. Monitor EC2 findings. Create an EventBridge rule triggered by GuardDuty. Invoke a Lambda function that terminates the affected EC2 instances.

D : Enable AWS Security Hub. Monitor EC2 findings. Create an EventBridge rule triggered by SecurityHub. Invoke Lambda to terminate EC2 instances.

Answer: C

Question 4

A development team manually builds a local artifact. The development team moves the artifact to an Amazon S3 bucket to support an application. The application has a local cache that must be cleared when the development team deploys the application to Amazon EC2 instances. For each deployment, the development team runs a command to clear the cache, download the artifact from the S3 bucket, and unzip the artifact to complete the deployment. The development team wants to migrate the deployment process to a CI/CD process and to track the progress of each deployment. Which combination of actions will meet these requirements with the MOST operational efficiency? (Select THREE.)

A : Set up an AWS CodeConnections compatible Git repository. Allow developers to merge code into the repository. Use AWS CodeBuild to build an artifact and copy the object into the S3 bucket. Configure CodeBuild to run for every merge into the main branch.

B : Create a custom script to clear the cache. Specify the script in the BeforeInstall lifecycle hook in the AppSpec file.

C : Create user data for each EC2 instance that contains the cache clearing script. Test the application after deployment. If the deployment is not successful, then redeploy.

D : Use AWS CodePipeline to deploy the application. Set up an AWS CodeConnections compatible Git repository. Allow developers to merge code into the repository as a source for the pipeline.

E : Use AWS CodeBuild to build the artifact and place the artifact in the S3 bucket. Use AWS CodeDeploy to deploy the artifact to EC2 instances.

F : Use AWS Systems Manager to fetch the artifact from the S3 bucket and to deploy the artifact to all the EC2 instances.

Answer: B,D,E

Question 5

A company has a suite of applications that are hosted in AWS and each app has its own AMI. Currently, a new AMI must be manually created and deployed to the server if there is a new application version. A DevOps engineer was instructed to automate the process of generating the AMIs to streamline the company's CI/CD workflow. The ID of the newly created AMI must be stored in a centralized location where other build pipelines can programmatically access it.

Which of the following is the MOST cost-effective way to accomplish this requirement with the LEAST amount of overhead?

A : t up a brand new pipeline in AWS CodePipeline with several EC2 instances for processing. Configure it to download and save the latest operating system of the application in an Open Virtualization Format (OVF) image format and then store the image in an S3 bucket. Customize the image using guestfish interactive shell or the virt-rescue shell. Convert the OVF to an AMI using the virtual machine (VM) import command and then store the AMI IDs in AWS Systems Manager Parameter Store.

B : ing AWS Systems Manager, create an Automation document with values that configure how the machine image should be created. Launch a new pipeline with a custom action in AWS CodePipeline and integrate it with Amazon Eventbridge to execute the automation document. Build the AMI when the process is triggered. Store the AMI IDs in Systems Manager Parameter Store.

C : an open-source machine image creation tool such as Packer then configure it with values defining how the AMI should be created. Set up a Jenkins pipeline hosted in a large EC2 instance to start the Packer when triggered to build an AMI. Store the AMI IDs to an Amazon DynamoDB table.

D : ing AWS CodePipeline, set up a new pipeline that will take an EBS snapshot of the EBS-backed EC2 instance which runs the latest version of each application. Launch a new EC2 instance from the generated snapshot and update the running instance using a Lambda function. Take a snapshot of the updated EC2 instance and then afterward, convert it to an Amazon Machine Image (AMI). Store all of the AMI IDs in an S3 bucket.

Answer: B