Exam AWS Certified Solutions Architect - Associate SAA-C02 topic 1 question 702 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C02

Question #: 702
Topic #: 1

[All AWS Certified Solutions Architect - Associate SAA-C02 Questions]

A company has a web application hosted over 10 Amazon EC2 instances with traffic directed by Amazon Route 53. The company occasionally experiences a timeout error when attempting to browse the application. The networking team finds that some DNS queries return IP addresses of unhealthy instances, resulting in the timeout error.
What should a solutions architect implement to overcome these timeout errors?

A. Create a Route 53 simple routing policy record for each EC2 instance. Associate a health check with each record.
B. Create a Route 53 failover routing policy record for each EC2 instance. Associate a health check with each record.
C. Create an Amazon CloudFront distribution with EC2 instances as its origin. Associate a health check with the EC2 instances.
D. Create an Application Load Balancer (ALB) with a health check in front of the EC2 instances. Route to the ALB from Route 53.

Show Suggested Answer

Suggested Answer: D 🗳️

by sk_sk at Sept. 29, 2022, 7:14 a.m.

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Yadan_Fan

2 years, 6 months ago

Shouldn't the ans be "A"? https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover-types.html#dns-failover-types-active-active

upvoted 1 times

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pxcat11

2 years, 6 months ago

Selected Answer: D

It's B or D. I go with D. Having 9 standby failover instances is so wasteful, if it's even possible. Lot's of money down the drain. Plus, route 53 failover routing only mentions primary and secondary which suggests to me there can only be 2 records but not sure. Even if you can have, 9 ALB is much better anyways. It has to be D.

upvoted 2 times

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