Practice DOP-001 Exam Online

Question 1

An online retail company based in the United States plans to expand its operations to Europe and Asia in the next six months. Its product currently runs on
Amazon EC2 instances behind an Application Load Balancer. The instances run in an Amazon EC2 Auto Scaling group across multiple Availability Zones. All data is stored in an Amazon Aurora database instance.
When the product is deployed in multiple regions, the company wants a single product catalog across all regions, but for compliance purposes, its customer information and purchases must be kept in each region.
How should the company meet these requirements with the LEAST amount of application changes?

A : Use Amazon Redshift for the product catalog and Amazon DynamoDB tables for the customer information and purchases.

B : Use Amazon DynamoDB global tables for the product catalog and regional tables for the customer information and purchases

C : Use Aurora with read replicas for the product catalog and additional local Aurora instances in each region for the customer information and purchases.

D : Use Aurora for the product catalog and Amazon DynamoDB global tables for the customer information and purchases.

Answer: C

Question 2

A company runs a three-tier web application in its production environment, which is built on a single AWS CloudFormation template made up of Amazon EC2 instances behind an ELB Application Load Balancer. The instances run in an EC2 Auto Scaling group across multiple Availability Zones. Data is stored in an
Amazon RDS Multi-AZ DB instance with read replicas. Amazon Route 53 manages the application's public DNS record.
A DevOps Engineer must create a workflow to mitigate a failed software deployment by rolling back changes in the production environment when a software cutover occurs for new application software.
What steps should the Engineer perform to meet these requirements with the LEAST amount of downtime?

A : Use CloudFormation to deploy an additional staging environment and configure the Route 53 DNS with weighted records. During cutover, change the Route 53 A record weights to achieve an even traffic distribution between the two environments. Validate the traffic in the new environment and immediately terminate the old environment if tests are successful.

B : Use a single AWS Elastic Beanstalk environment to deploy the staging and production environments. Update the environment by uploading the ZIP file with the new application code. Swap the Elastic Beanstalk environment CNAME. Validate the traffic in the new environment and immediately terminate the old environment if tests are successful.

C : Use a single AWS Elastic Beanstalk environment and an AWS OpsWorks environment to deploy the staging and production environments. Update the environment by uploading the ZIP file with the new application code into the Elastic Beanstalk environment deployed with the OpsWorks stack. Validate the traffic in the new environment and immediately terminate the old environment if tests are successful.

D : Use AWS CloudFormation to deploy an additional staging environment, and configure the Route 53 DNS with weighted records. During cutover, increase the weight distribution to have more traffic directed to the new staging environment as workloads are successfully validated. Keep the old production environment in place until the new staging environment handles all traffic.

Answer: D

Question 3

A retail company is currently hosting a Java-based application in its on-premises data center. Management wants the DevOps Engineer to move this application to
AWS. Requirements state that while keeping high availability, infrastructure management should be as simple as possible. Also, during deployments of new application versions, while cost is an important metric, the Engineer needs to ensure that at least half of the fleet is available to handle user traffic.
What option requires the LEAST amount of management overhead to meet these requirements?

A : Create an AWS CodeDeploy deployment group and associate it with an Auto Scaling group configured to launch instances across subnets in different Availability Zones. Configure an in-place deployment with a CodeDeploy.HalfAtAtime configuration for application deployments.

B : Create an AWS Elastic Beanstalk Java-based environment using Auto Scaling and load balancing. Configure the network setting for the environment to launch instances across subnets in different Availability Zones. Use 'Rolling with additional batch' as a deployment strategy with a batch size of 50%.

C : Create an AWS CodeDeploy deployment group and associate it with an Auto Scaling group configured to launch instances across subnets in different Availability Zones. Configure an in-place deployment with a custom deployment configuration with the MinimumHealthyHosts option set to type FLEET_PERCENT and a value of 50.

D : Create an AWS Elastic Beanstalk Java-based environment using Auto Scaling and load balancing. Configure the network options for the environment to launch instances across subnets in different Availability Zones. Use 'Rolling' as a deployment strategy with a batch size of 50%.

Answer: D

Question 4

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 to command to use ''-acl public-read and configure a bucket policy that grants read access to the relevant AWS accounts only.

B : 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.

C : Create an S3 bucket policy that grants read access to the relevant AWS accounts and denies read access to the principal '*'

D : 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.

Answer: D

Question 5

A Development team is adding a new country to an e-commerce application. This addition requires that new application features be added to the shipping component of the application. The team has not decided if all new features should be added, as some will take approximately six weeks to build. While the final decision on the shipping component features is being made, other team members are continuing to work on other features of the application.
Based on this situation, how should the application feature deployments be managed?

A : Add the code updates as commits to the release branch. The team can delay the deployment until all features are ready.

B : Add the code updates as commits to a feature branch. Merge the commits to a release branch as features are ready.

C : Add the code updates as a single commit when a feature is ready. Tag this commit with 'new-country.'

D : Create a new repository named 'new-country'. Commit all the code changes to the new repository.

Answer: B

Name:	AWS Certified DevOps Engineer - Professional
Exam Code:	DOP-001
Certification:	AWS Certified Professional
Vendor:	Amazon
Total Questions:	272
Last Updated:	Apr 23, 2024

Amazon DOP-001