ANS-C01 Question #14: Real Exam Question with Answer & Explanation

Question

A company has expanded its network to the AWS Cloud by using a hybrid architecture with multiple AWS accounts. The company has set up a shared AWS account for the connection to its on-premises data centers and the company offices. The workloads consist of private web-based services for internal use. These services run in different AWS accounts. Office-based employees consume these services by using a DNS name in an on-premises DNS zone that is named example.internal. The process to register a new service that runs on AWS requires a manual and complicated change request to the internal DNS. The process involves many teams. The company wants to update the DNS registration process by giving the service creators access that will allow them to register their DNS records. A network engineer must design a solution that will achieve this goal. The solution must maximize cost-effectiveness and must require the least possible number of configuration changes. Which combination of steps should the network engineer take to meet these requirements? (Choose three.)

Options

• ACreate a record for each service in its local private hosted zone
• BCreate an Amazon Route 53 Resolver inbound endpoint in the shared account VPC. Create a
• CCreate an Amazon Route 53 Resolver rule to forward any queries made to
• DCreate an Amazon Route 53 private hosted zone named aws.example.internal in the shared
• ELaunch two Amazon EC2 instances in the shared AWS account. Install BIND on each instance.
• FCreate a private hosted zone in the shared AWS account for each account that runs the service.

Explanation

https://docs.aws.amazon.com/whitepapers/latest/hybrid-cloud-dns-options-for-vpc/scaling-dns- management-across-multiple-accounts-and-vpcs.html

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