Amazon Exam DOP-C01 Topic 6 Question 87 Discussion

Actual exam question for Amazon's DOP-C01 exam

Question #: 87
Topic #: 6

A company has developed a Node.js web application which provides REST services to store and retrieve time series dat

a. The web application is built by the Development team on company laptops, tested locally, and manually deployed to a single on-premises server, which accesses a local MySQL database. The company is starting a trial in two weeks, during which the application will undergo frequent updates based on customer feedback. The following requirements must be met: *The team must be able to reliably build, test, and deploy new updates on a daily basis, without downtime or degraded performance. *The application must be able to scale to meet an unpredictable number of concurrent users during the trial. Which action will allow the team to quickly meet these objectives?

ACreate two Amazon Lightsail virtual private servers for Node.js; one for test and one for production. Build the Node.js application using existing process and upload it to the new Lightsail test server using the AWS CLI. Test the application, and if it passes all tests, upload it to the production server. During the trial, monitor the production server usage, and if needed, increase performance by upgrading the instance type.

BDevelop an AWS CloudFormation template to create an Application Load Balancer and two Amazon EC2 instances with Amazon EBS (SSD) volumes in an Auto Scaling group with rolling updates enabled. Use AWS CodeBuild to build and test the Node.js application and store it in an Amazon S3 bucket. Use user- data scripts to install the application and the MySQL database on each EC2 instance. Update the stack to deploy new application versions.

CConfigure AWS Elastic Beanstalk to automatically build the application using AWS CodeBuild and to deploy it to a test environment that is configured to support auto scaling. Create a second Elastic Beanstalk environment for production. Use Amazon RDS to store data. When new versions of the applications have passed all tests, use Elastic Beanstalk 'swap cname' to promote the test environment to production.

DModify the application to use Amazon DynamoDB instead of a local MySQL database. Use AWS OpsWorks to create a stack for the application with a DynamoDB layer, an Application Load Balancer layer, and an Amazon EC2 instance layer. Use a Chef recipe to build the application and a Chef recipe to deploy the application to the EC2 instance layer. Use custom health checks to run unit tests on each instance with rollback on failure.

Show Suggested Answer

Suggested Answer: B

by Izetta at Mar 04, 2024, 02:37 AM

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Charlene

9 months ago

Alright, I see your point. Maybe option C is the way to go.

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Kaycee

10 months ago

I agree with Della, option C seems like the most effective solution.

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Della

10 months ago

Because setting the PropagateAtLaunch property to true ensures that all future EBS volumes will have the cost center tags.

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Charlene

10 months ago

Why do you think option C is better?

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Della

10 months ago

I disagree, I believe option C is more efficient.

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Charlene

10 months ago

I think option D is the best solution.

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Josefa

10 months ago

But wouldn't updating the Auto Scaling group launch template to include the cost center tags be more efficient in the long run?

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Devorah

11 months ago

I think using Tag Editor to search for EBS volumes that are missing the tags is the way to go. It's quick and direct.

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Lenora

11 months ago

I disagree, I believe creating a lifecycle hook on the autoscaling:EC2_INSTANCE_TERMINATING instance state is a better option.

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Josefa

11 months ago

I think the most efficient solution would be to update the Auto Scaling group to include the cost center tags and set PropagateAtLaunch to true.

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Magda

1 years ago

I can see the appeal of that, but I'm still not convinced it's the most efficient. What if we have a lot of existing volumes that need to be tagged?

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Corinne

1 years ago

That's a good idea, but it feels a bit manual. I'm still leaning towards the launch template solution. It's the most foolproof way to ensure all new volumes are properly tagged.

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Gayla

1 years ago

True, but then we'd have to remember to set the PropagateAtLaunch property. That could be easy to forget.

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Margarett

1 years ago

Ooh, good point. We definitely don't want to deal with that. Maybe option D is the way to go - using the Tag Editor to find and fix the untagged volumes.

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