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Which of these is not an instrinsic function in AWS CloudFormation?
After a daily scrum with your development teams, you've agreed that using Blue/Green style deployments would benefit the team. Which technique should you use to deliver this new requirement?
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A DevOps Engineer must create a Linux AMI in an automated fashion. The newly created AMI identification must be stored in a location where other build pipelines can access the new identification programmatically What is the MOST cost-effective way to do this?
For AWS Auto Scaling, what is the first transition state an existing instance enters after leaving steady state in Standby mode?
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If you want CloudFormation stack status updates to show up in a continuous delivery system in as close to real time as possible, how should you achieve this?
A company updated the AWS CloudFormation template for a critical business application. The stack update process failed due to an error in the updated template, and AWS CloudFormation automatically began the stack rollback process. Later, a DevOps engineer discovered that the application was still unavailable and that the stack was in the UPDATE_ROLLBACK_FAILED state. Which combination of actions should the DevOps engineer perform so that the stack rollback can complete successfully? (Choose two.)
A user has attached an EBS volume to a running Linux instance as a "/dev/sdf" device. The user is unable to see the attached device when he runs the command "df -h". What is the possible reason for this?
An application running on a set of Amazon EC2 instances in an Auto Scaling group requires a configuration file to operate. The instances are created and maintained with AWS CloudFormation. A DevOps engineer wants the instances to have the latest configuration file when launched, and wants changes to the configuration file to be reflected on all the instances with a minimal delay when the CloudFormation template is updated. Company policy requires that application configuration files be maintained along with AWS infrastructure configuration files in source control. Which solution will accomplish this?

Question 460 - DOP-C01 discussion

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You manage a three-tier web application consisting of an autoscaled web proxy tier, an autoscaled application tier, and an Amazon RDS database tier. You use a load balancer to distribute requests from end users to the web proxy tier and another, internal load balancer to distribute requests between the web tier and the application tier. After deploying a small database schema update, you notice that all of your web and application instances have been terminated. What may have caused this?

A.
Your load balancers use an HTTP health check, and the page relies on retrieving data from your database.
Answers
A.
Your load balancers use an HTTP health check, and the page relies on retrieving data from your database.
B.
Your load balancer use TCP health checks to provide application-level health checks.
Answers
B.
Your load balancer use TCP health checks to provide application-level health checks.
C.
The cooldown period of the Auto Scaling group is too short, so the instances do not have enough time to recover from an issue.
Answers
C.
The cooldown period of the Auto Scaling group is too short, so the instances do not have enough time to recover from an issue.
D.
Your Auto Scaling group health check type is set to "EC2" to check that the instances themselves are healthy.
Answers
D.
Your Auto Scaling group health check type is set to "EC2" to check that the instances themselves are healthy.
Suggested answer: A
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asked 16/09/2024
Orenthial Johnson
31 questions
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