A company delivers applications over the internet. An Amazon Route 53 public hosted zone is the authoritative DNS service for the company and its internet applications, all of which are offered from the same domain name. A network engineer is working on a new version of one of the applications. All the application's components are hosted in the AWS Cloud. The application has a three-tier design. The front end is delivered through Amazon EC2 instances that are deployed in public subnets with Elastic IP addresses assigned. The backend components are deployed in private subnets from RFC1918. Components of the application need to be able to access other components of the application within the application's VPC by using the same host names as the host names that are used over the public internet. The network engineer also needs to accommodate future DNS changes, such as the introduction of new host names or the retirement of DNS entries. Which combination of steps will meet these requirements? (Choose three.)
Select 3 answers.
Marked answer: B
This question asks for 3 answers, but our data marks only 1. Compare with the community discussion below for the full answer.
Community Discussion
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Chose BCE2
Step Function B Private hosted zone for internal resolution of the same hostnames C Enable DNS in the VPC for internal resolution E Automate synchronization with the public zone using EventBridge + Lambda
Chose BCD1
DNS Split View.. BCD are the correct answers.
Chose BCE3
B. Creating a Route 53 private hosted zone for the same domain name and associating the application's VPC with the new private hosted zone allows internal DNS resolution within the VPC. C. Enabling DNS hostnames for the application's VPC is necessary for DNS resolution within the VPC. E. Creating an Amazon EventBridge rule triggered by AWS CloudTrail logs for Route 53 API calls and using an AWS Lambda function allows for automated updates to the private hosted zone when changes occur in the public hosted zone. This ensures that changes in the public DNS are reflected in the private DNS for internal resolution.
