A company website is set to launch in the upcoming weeks.
There is a probability that the traffic will be quite high during the initial weeks.
How is it possible to set up DNS failover to a static website in the event of a load failure?
Click on the arrows to vote for the correct answer
A. B. C. D.Correct Answer - C.
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 Amazon Route 53 will route your traffic from an unhealthy resource to a healthy resource.
For example, if you have two web servers and one web server becomes unhealthy, Amazon Route 53 can route traffic to the other web server.
So you can route traffic to a website hosted on S3 or to a CloudFront distribution.
For more information on DNS failover using Route 53, please refer to the link below:
http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover.htmlSure, I'd be happy to provide a detailed explanation for each answer choice.
A. Duplicate the exact application architecture in another region and configure DNS Weight-based routing.
This answer choice is suggesting that you duplicate your application in another region and use DNS Weight-based routing to direct traffic to both regions. Weight-based routing allows you to split the traffic between regions in a specific ratio. For example, you could direct 80% of your traffic to your primary region and 20% to your secondary region. If the primary region becomes overloaded, the traffic will automatically failover to the secondary region.
This approach requires you to duplicate your entire application architecture in another region, which can be expensive and time-consuming. Additionally, this solution may not be the best fit for a static website as it may not require such a complex setup.
B. Enable failover to an on-premises data center to the application hosted there.
This answer choice suggests that you can host your website in both AWS and an on-premises data center, and failover to the on-premises data center if AWS fails. While this approach can provide additional resilience, it adds complexity to the architecture and may not be necessary for a static website.
C. Use Route 53 with the failover option, to failover to a static S3 website bucket or CloudFront distribution.
This answer choice is the most appropriate option for a static website hosted on AWS. Route 53, AWS's DNS service, offers a failover option that can automatically route traffic to a different resource when the primary resource is unavailable. In this case, you can configure Route 53 to failover to a static S3 website bucket or CloudFront distribution if the primary resource becomes unavailable. This is a simple and cost-effective solution that requires minimal setup.
D. Add more servers in case the application fails.
This answer choice is not the best solution for a static website. Adding more servers may help to handle additional traffic, but it does not address the issue of a load failure or provide automatic failover. Additionally, adding more servers can be expensive and may not be necessary for a static website.
In summary, the best answer choice for setting up DNS failover to a static website in the event of a load failure is to use Route 53 with the failover option, to failover to a static S3 website bucket or CloudFront distribution.