Exam AWS Certified Solutions Architect - Associate SAA-C02 topic 1 question 126 discussion

Route 53 health check with active-passive failover record. So correct option is B.

Can you people in Examtopics make sure you answer questions correctly? CORRECT: "Enable an Amazon Route 53 health check" is the correct answer. INCORRECT: "Enable an ALB health check" is incorrect. The point of an ALB health check is to identify the health of targets (EC2 instances). It cannot redirect clients to another Region. INCORRECT: "Create a CNAME record on Amazon Route 53 pointing to the ALB endpoint" is incorrect as an Alias record already exists and is better for mapping to an ALB. INCORRECT: "Create a latency based routing policy on Amazon Route 53" is incorrect as this will only take into account latency, it is not used for failover

You cannot do B if you dont do C

An application load balancer can server multiple AZ, but not multiple regions. DNS is the only way to serve multiple region

B is correct. https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover-types.html#dns-failover-types-active-passive

answer is B as explained by eug45

C "The current failover process is manual and requires updating a DNS alias record to point to the secondary ALB in another Region." The question already told its a manual failover, and need to DNS alias re-map. B is good once you have done option C after CNAME setup

Route 53 failover (health check)

Health Check

I feel like this should be a multi-option question. In order to automating the failover, we need to make sure that: 1. Route53 is able to redirect to both of the ALBs(C) 2. We need the health check for active-passive failover(B) Sometimes I feel like AWS should really try to design their questions in a better way that ppl can provide feedback so that there question will be more sensible.

How could it be C? They even misspelled the word "Create"

"automate the failover process".... C?... B seem like more correct.

Created CNAME here isn't possible, letter C is wrong. Keep in mind guys, there's two ALB it's a key this question. if there's two ALB, only route53 with health check enable create this failover environment.100% sure for B.

keyword DNS = route 53

C. Crate an CNAME record on Amazon Route 53 pointing to the ALB endpoint.

C is correct ALB provides fixed hostname. On failover should redirect to another fixed hostname in another region

Answer B: Answer B: The objective is to automate the failover. https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover.html "Amazon Route 53 health checks monitor the health and performance of your web applications, web servers, and other resources...." "If you have multiple resources that perform the same function, you can configure DNS failover so that Route 53 will route your traffic from an unhealthy resource to a healthy resource..."