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Exam AWS Certified DevOps Engineer - Professional DOP-C02 All Questions

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Exam AWS Certified DevOps Engineer - Professional DOP-C02 topic 1 question 214 discussion

Exam question from Amazon's AWS Certified DevOps Engineer - Professional DOP-C02
Question #: 214
Topic #: 1
[All AWS Certified DevOps Engineer - Professional DOP-C02 Questions]

A company needs to implement failover for its application. The application includes an Amazon CloudFront distribution and a public Application Load Balancer (ALB) in an AWS Region. The company has configured the ALB as the default origin for the distribution.

After some recent application outages, the company wants a zero-second RTO. The company deploys the application to a secondary Region in a warm standby configuration. A DevOps engineer needs to automate the failover of the application to the secondary Region so that HTTP GET requests meet the desired RTO.

Which solution will meet these requirements?

  • A. Create a second CloudFront distribution that has the secondary ALB as the default origin. Create Amazon Route 53 alias records that have a failover policy and Evaluate Target Health set to Yes for both CloudFront distributions. Update the application to use the new record set.
  • B. Create a new origin on the distribution for the secondary ALCreate a new origin group. Set the original ALB as the primary origin. Configure the origin group to fail over for HTTP 5xx status codes. Update the default behavior to use the origin group.
  • C. Create Amazon Route 53 alias records that have a failover policy and Evaluate Target Health set to Yes for both ALBs. Set the TTL of both records to 0. Update the distribution's origin to use the new record set.
  • D. Create a CloudFront function that detects HTTP 5xx status codes. Configure the function to return a 307 Temporary Redirect error response to the secondary ALB if the function detects 5xx status codes. Update the distribution's default behavior to send origin responses to the function.
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Suggested Answer: B 🗳️
by CloudHell at March 16, 2024, 8:20 p.m.
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youonebe
4 months ago
Selected Answer: B
vote for b
upvoted 2 times
...
dkp
6 months, 2 weeks ago
Selected Answer: B
answer B
upvoted 3 times
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WhyIronMan
7 months ago
Selected Answer: B
B, mazon CloudFront offers origin failover, where if a given request to the primary endpoint fails, CloudFront routes the request to the secondary endpoint. Unlike the failover operations described previously, all subsequent requests still go to the primary endpoint, and failover is done per each request. https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/high_availability_origin_failover.html#concept_origin_groups.creating
upvoted 4 times
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CloudHell
7 months, 2 weeks ago
Selected Answer: B
It's B for me. https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/high_availability_origin_failover.html
upvoted 4 times
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