Amazon Exam BDS-C00 Topic 10 Question 107 Discussion

Actual exam question for Amazon's BDS-C00 exam

Question #: 107
Topic #: 10

You have been asked to use your department's existing continuous integration (CI) tool to test a three- tier web architecture defined in an AWS CloudFormation template. The tool already supports AWS APIs and can launch new AWS CloudFormation stacks after polling version control. The CI tool reports on the success of the AWS CloudFormation stack creation by using the DescribeStacks API to look for the CREATE_COMPLETE status.

The architecture tiers defined in the template consist of:

. One load balancer

. Five Amazon EC2 instances running the web application

. One multi-AZ Amazon RDS instance How would you implement this? Choose 2 answers

ADefine a WaitCondition and a WaitConditionhandle for the output of a output of a UserData command that does sanity checking of the application's post-install state

BDefine a CustomResource and write a script that runs architecture-level integration tests through the load balancer to the application and database for the state of multiple tiers

CDefine a WaitCondition and use a WaitConditionHandle that leverages the AWS SDK to run the
DescribeStacks API call until the CREATE_COMPLETE status is returned

DDefine a CustomResource that leverages the AWS SDK to run the DescribeStacks API call until the CREATE_COMPLETE status is returned

EDefine a UserDataHandle for the output of a UserData command that does sanity checking of the application's post-install state and runs integration tests on the state of multiple tiers through load balancer to the application

FDefine a UserDataHandle for the output of a CustomResource that does sanity checking of the application's post-install state

Show Suggested Answer

Suggested Answer: A, D

by Beckie at Oct 24, 2024, 02:03 PM

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Delsie

1 days ago

C and D seem like the most straightforward options to implement the health check and ensure the stack creation is complete. The WaitCondition and WaitConditionHandle in C looks like the better choice to me.

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Gail

4 days ago

I'm not sure, I think option B could also work. Running architecture-level integration tests through the load balancer might provide more comprehensive testing of the entire architecture.

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Tegan

8 days ago

I agree with Salena. Option C seems like the most efficient way to ensure the CREATE_COMPLETE status is returned before proceeding with the testing.

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Salena

9 days ago

I think option C is the way to go. Using the WaitCondition and WaitConditionHandle with the DescribeStacks API seems like the most straightforward approach.

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