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Exam AWS Certified Advanced Networking - Specialty ANS-C01 topic 1 question 77 discussion

Exam question from Amazon's AWS Certified Advanced Networking - Specialty ANS-C01
Question #: 77
Topic #: 1
[All AWS Certified Advanced Networking - Specialty ANS-C01 Questions]

An insurance company is planning the migration of workloads from its on-premises data center to the AWS Cloud. The company requires end-to-end domain name resolution. Bi-directional DNS resolution between AWS and the existing on-premises environments must be established. The workloads will be migrated into multiple VPCs. The workloads also have dependencies on each other, and not all the workloads will be migrated at the same time.

Which solution meets these requirements?

  • A. Configure a private hosted zone for each application VPC, and create the requisite records. Create a set of Amazon Route 53 Resolver inbound and outbound endpoints in an egress VPC. Define Route 53 Resolver rules to forward requests for the on-premises domains to the on-premises DNS resolver. Associate the application VPC private hosted zones with the egress VPC, and share the Route 53 Resolver rules with the application accounts by using AWS Resource Access Manager. Configure the on-premises DNS servers to forward the cloud domains to the Route 53 inbound endpoints.
  • B. Configure a public hosted zone for each application VPC, and create the requisite records. Create a set of Amazon Route 53 Resolver inbound and outbound endpoints in an egress VPC. Define Route 53 Resolver rules to forward requests for the on-premises domains to the on-premises DNS resolver. Associate the application VPC private hosted zones with the egress VPC. and share the Route 53 Resolver rules with the application accounts by using AWS Resource Access Manager. Configure the on-premises DNS servers to forward the cloud domains to the Route 53 inbound endpoints.
  • C. Configure a private hosted zone for each application VPC, and create the requisite records. Create a set of Amazon Route 53 Resolver inbound and outbound endpoints in an egress VPDefine Route 53 Resolver rules to forward requests for the on-premises domains to the on-premises DNS resolver. Associate the application VPC private hosted zones with the egress VPand share the Route 53 Resolver rules with the application accounts by using AWS Resource Access Manager. Configure the on-premises DNS servers to forward the cloud domains to the Route 53 outbound endpoints.
  • D. Configure a private hosted zone for each application VPC, and create the requisite records. Create a set of Amazon Route 53 Resolver inbound and outbound endpoints in an egress VPC. Define Route 53 Resolver rules to forward requests for the on-premises domains to the on-premises DNS resolver. Associate the Route 53 outbound rules with the application VPCs, and share the private hosted zones with the application accounts by using AWS Resource Access Manager. Configure the on-premises DNS servers to forward the cloud domains to the Route 53 inbound endpoints.
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Suggested Answer: A 🗳️
by Spike2020 at April 24, 2023, 8:23 p.m.
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study_aws1
Highly Voted 2 years ago
It is A). PHZ cannot be shared, Route 53 resolver rules can be shared uusing AWS RAM.
upvoted 10 times
secdaddy
3 months, 1 week ago
The use of 'egress zone' bothers me as it *could* indicate Internet which means public zone (B) instead of private zone (A).
upvoted 1 times
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zanhsieh
Most Recent 1 month, 2 weeks ago
Selected Answer: A
A. B: No. Public zones are for internet-facing domains, not internal VPC resolution. VPCs need private zones for internal DNS. C: No. Forwarding to outbound endpoints is incorrect. Outbound endpoints send queries from AWS, not receive them. Inbound endpoints are needed. D: No. Resolver rules need VPC association, but “associate outbound rules with VPCs” is unclear—rules are typically associated via outbound endpoints in the egress VPC. Associating rules directly with application VPCs contradicts the egress VPC model (rules should stay centralized).
upvoted 1 times
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woorkim
6 months ago
A is right * associate the private hosted zones with the egress VPC, allowing centralized DNS management, while sharing the rules through RAM for consistency
upvoted 1 times
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Raphaello
1 year ago
Selected Answer: A
Associate private hosted zoneS with egress VPC, and share forwarding rules (to on-prem DNS) with application VPC's via RAM. Pay attention to the details and wording. A is the correct answer.
upvoted 2 times
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shinzor
1 year, 5 months ago
A and C are the same answer. C has some typo's
upvoted 1 times
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marcosbude
1 year, 5 months ago
efffff
upvoted 1 times
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Arad
1 year, 6 months ago
Selected Answer: A
A is the right answer.
upvoted 1 times
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MohamedSherif1
1 year, 8 months ago
Selected Answer: A
A. Configure a private hosted zone for each application VPC, and create the requisite records. Create a set of Amazon Route 53 Resolver inbound and outbound endpoints in an egress VPC. Define Route 53 Resolver rules to forward requests for the on-premises domains to the on-premises DNS resolver. Associate the application VPC private hosted zones with the egress VPC, and share the Route 53 Resolver rules with the application accounts by using AWS Resource Access Manager. Configure the on-premises DNS servers to forward the cloud domains to the Route 53 inbound endpoints.
upvoted 3 times
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ISSDoksim
1 year, 9 months ago
agreed A -
upvoted 1 times
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rhinozD
2 years ago
Selected Answer: A
A is correct.
upvoted 4 times
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Spike2020
2 years ago
D is the correct answer
upvoted 3 times
rhinozD
2 years ago
"Associate the Route 53 outbound rules with the application VPCs" -> wrong.
upvoted 3 times
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