Your company has just launched an application that uses Cloudfront to serve image content which is stored in S3
But after the deployment, it is noticed that the images are not appearing on the web page.
You have verified that the Cloudfront service is configured to use your domain name which is cdn.demo.com.
Which of the following could be a likely reason for this issue?
Click on the arrows to vote for the correct answer
A. B. C. D.Answer - C.
The AWS Documentation mentions the following which should be followed when using a Cloudfront distribution with your own domain name.
If you want to use your own domain name, use Amazon Route 53 to create an alias resource record set that points to your CloudFront distribution.
An alias resource record set is an Amazon Route 53 extension to DNS.
It's similar to a CNAME resource record set, but you can create an alias resource record set both for the root domain, such as example.com, and for subdomains, such as www.example.com.
For more information on Cloudfront distribution and Route53, please refer to below URL:
http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-to-cloudfront-distribution.htmlThe likely reason for the issue is that there is no record in Route 53 pointing to CloudFront that uses "cdn.demo.com" as the ALIAS (Option C).
CloudFront is a content delivery network (CDN) that caches content at edge locations worldwide to reduce latency and improve performance. It integrates with other AWS services such as S3, EC2, and Route 53 to deliver content to users.
In this scenario, the application is using CloudFront to serve image content, which is stored in S3. CloudFront is configured to use the domain name "cdn.demo.com". However, the images are not appearing on the web page.
Option A, "A policy has not been set for shared access to the bucket," is unlikely to be the issue as it refers to S3 bucket access policies. If there were access issues, the images would not have been able to be served from S3 and CloudFront would not have cached them.
Option B, "Use Elastic Cache to serve images instead of S3," is not a valid solution to the problem as Elastic Cache is an in-memory data store that can be used to speed up data access for applications. It is not designed to store image content for delivery through a CDN.
Option D, "There is no host record created in Route53 pointing to cdn.demo.com," is similar to Option C but refers to a slightly different issue. If there were no host record created, the application would not be able to access the CDN at all.
Therefore, the most likely reason for the issue is that there is no record in Route 53 pointing to CloudFront that uses "cdn.demo.com" as the ALIAS. This means that the application is unable to find the CloudFront distribution associated with the domain name and cannot retrieve the images stored in S3.