AWS Certified Professional DOP-C01 Reddit Questions

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Question 8

An application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). A DevOps engineer is using AWS CodeDeploy to release a new version. The deployment fails during the AllowTraffic lifecycle event, but a cause for the failure is not indicated in the deployment logs.

What would cause this?

Options:

The appspec.yml file contains an invalid script to execute in the AllowTraffic lifecycle hook.

The user who initiated the deployment does not have the necessary permissions to interact with the ALB

The health checks specified for the ALB target group are misconfigured.

The CodeDeploy agent was not installed in the EC2 instances that are part of the ALB target group.

Question 9

A company recently launched an application that is more popular than expected. The company wants to ensure the application can scale to meet increasing demands and provide reliability using multiple Availability Zones (AZs) The application runs on a fleet of Amazon EC2 instances behind an Application Load Balancer (ALB) A DevOps engineer has created an Auto Scaling group across multiple AZs for the application Instances launched in the newly added AZs are not receiving any traffic for the application.

What is likely causing this issue?

Options:

Auto Scaling groups can create new instances in a single AZ only.

The EC2 instances have not been manually associated to the ALB

The ALB should be replaced with a Network Load Balancer (NLB).

The new AZ has not been added to the ALB

Question 10

A company has migrated its container-based applications to Amazon EKS and want to establish automated email notifications. The notifications sent to each email address are for specific activities related to EXS components. The solution will include Amazon SNS topics and an AWS Lambda function to evaluate incoming log events and publish messages to the correct SNS topic.

Which logging solution will support these requirements?

Options:

Enable Amazon CloudWatch Logs to log the EKS components. Create a CloudWatch subscription filter for each component with Lambda as the subscription feed destination.

Enable Amazon CloudWatch Logs to log the EKS components. Create CloudWatch Logs Insights queries linked to Amazon CloudWatch Events events that trigger Lambda.

Enable Amazon S3 logging for the EKS components. Configure an Amazon CloudWatch subscription filter for each component with Lambda as the subscription feed destination.

Enable Amazon S3 logging for the EKS components. Configure S3 PUT Object event notifications with AWS Lambda as the destination.

Question 11

A rapidly growing company wants to scale for Developer demand for AWS development environments. Development environments are created manually in the

AWS Management Console. The Networking team uses AWS CloudFormation to manage the networking infrastructure, exporting stack output values for the

Amazon VPC and all subnets. The development environments have common standards, such as Application Load Balancers, Amazon EC2 Auto Scaling groups, security groups, and Amazon DynamoDB tables.

To keep up with the demand, the DevOps Engineer wants to automate the creation of development environments. Because the infrastructure required to support the application is expected to grow, there must be a way to easily update the deployed infrastructure. CloudFormation will be used to create a template for the development environments.

Which approach will meet these requirements and quickly provide consistent AWS environments for Developers?

Options:

Use Fn:ImportValue intrinsic functions in the Resources section of the template to retrieve Virtual Private Cloud (VPC) and subnet values. Use CloudFormation StackSets for the development environments, using the Count input parameter to indicate the number of environments needed. use the command to update existing development environments. UpdateStackSet

Use nested stacks to define common infrastructure components. To access the exported values, use TemplateURL to reference the Networking team's template. To retrieve Virtual Private Cloud (VPC) and subnet values, use Fn::ImportValue intrinsic functions in the Parameters section of the master template. Use the CreateChangeSet and ExecuteChangeSet commands to update existing development environments.

Use nested stacks to define common infrastructure components. Use Fn::ImportValue intrinsic functions with the resources of the nested stack to retrieve Virtual Private Cloud (VPC) and subnet values. Use the CreateChangeSet and ExecuteChangeSet commands to update existing development environments.

Use Fn:ImportValue intrinsic functions in the Parameters section of the master template to retrieve Virtual Private Cloud (VPC) and subnet values. Define the development resources in the order they need to be created in the CloudFormation nested stacks. Use the CreateChangeSet and ExecuteChangeSet commands to update existing development environments.

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