Answer-first summary for fast verification
Answer: Create an Amazon Route 53 Resolver outbound endpoint. Configure a Resolver rule that conditionally forwards DNS queries for on-premises.example.com to the on-premises DNS server. Associate the rule with the VPCs.
To enable workloads in the VPCs to access resources on premises using the on-premises.example.com DNS names with minimal management, the most efficient solution is to use Amazon Route 53 Resolver. This service allows for seamless DNS resolution between AWS and on-premises environments without the need for additional EC2 instances or complex configurations. Option A suggests creating an Amazon Route 53 Resolver outbound endpoint and configuring a Resolver rule that conditionally forwards DNS queries for on-premises.example.com to the on-premises DNS server, then associating the rule with the VPCs. This approach leverages AWS's managed DNS service, reducing the need for manual management and scaling automatically with your AWS environment. Option B introduces an unnecessary inbound endpoint, which is not required for this scenario since the requirement is only for outbound DNS resolution from AWS to on-premises. Options C and D involve launching EC2 instances and configuring BIND software, which increases management overhead and does not align with the requirement for minimal management of resources. Therefore, the correct answer is A.
Author: LeetQuiz Editorial Team
Ultimate access to all questions.
A company has established hybrid connectivity between its VPCs and on-premises data center, with the on-premises.example.com subdomain configured on its on-premises DNS server and the aws.example.com subdomain used for AWS workloads across multiple VPCs and accounts. Resources in both environments can communicate via IP addresses. The company aims to enable workloads in the VPCs to access on-premises resources using the on-premises.example.com DNS names with the LEAST amount of resource management. What solution meets these requirements?
A
Create an Amazon Route 53 Resolver outbound endpoint. Configure a Resolver rule that conditionally forwards DNS queries for on-premises.example.com to the on-premises DNS server. Associate the rule with the VPCs.
B
Create an Amazon Route 53 Resolver inbound endpoint and a Resolver outbound endpoint. Configure a Resolver rule that conditionally forwards DNS queries for on-premises.example.com to the on-premises DNS server. Associate the rule with the VPCs.
C
Launch an Amazon EC2 instance. Install and configure BIND software to conditionally forward DNS queries for on-premises.example.com to the on-premises DNS server. Configure the EC2 instance's IP address as a custom DNS server in each VPC.
D
Launch an Amazon EC2 instance in each VPC. Install and configure BIND software to conditionally forward DNS queries for on-premises.example.com to the on-premises DNS server. Configure the EC2 instance's IP address as a custom DNS server in each VPC.
No comments yet.