Exam AWS Certified Advanced Networking - Specialty ANS-C01 topic 1 question 22 discussion

Exam question from Amazon's AWS Certified Advanced Networking - Specialty ANS-C01

Question #: 22
Topic #: 1

[All AWS Certified Advanced Networking - Specialty ANS-C01 Questions]

A company uses a hybrid architecture and has an AWS Direct Connect connection between its on-premises data center and AWS. The company has production applications that run in the on-premises data center. The company also has production applications that run in a VPC. The applications that run in the on-premises data center need to communicate with the applications that run in the VPC. The company is using corp.example.com as the domain name for the on-premises resources and is using an Amazon Route 53 private hosted zone for aws.example.com to host the VPC resources.
The company is using an open-source recursive DNS resolver in a VPC subnet and is using a DNS resolver in the on-premises data center. The company's on-premises DNS resolver has a forwarder that directs requests for the aws.example.com domain name to the DNS resolver in the VPC. The DNS resolver in the VPC has a forwarder that directs requests for the corp.example.com domain name to the DNS resolver in the on-premises data center. The company has deckled to replace the open-source recursive DNS resolver with Amazon Route 53 Resolver endpoints.
Which combination of steps should a network engineer take to make this replacement? (Choose three.)

A. Create a Route 53 Resolver rule to forward aws.example.com domain queries to the IP addresses of the outbound endpoint.
B. Configure the on-premises DNS resolver to forward aws.example.com domain queries to the IP addresses of the inbound endpoint.
C. Create a Route 53 Resolver inbound endpoint and a Route 53 Resolver outbound endpoint.
D. Create a Route 53 Resolver rule to forward aws.example.com domain queries to the IP addresses of the inbound endpoint.
E. Create a Route 53 Resolver rule to forward corp.example.com domain queries to the IP address of the on-premises DNS resolver.
F. Configure the on-premises DNS resolver to forward aws.example.com queries to the IP addresses of the outbound endpoint.

Show Suggested Answer

Suggested Answer: BCE 🗳️

by zaazanuna at March 18, 2023, 9:47 p.m.

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Comments

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albertkr

Highly Voted 1 year, 8 months ago

BCE is correct

upvoted 8 times

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dave777green

Highly Voted 1 year, 9 months ago

B,C,E 100%

upvoted 7 times

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Raphaello

Most Recent 9 months ago

Selected Answer: BCE

BCE are the correct answers. For this scenario we need both resolver inbound and outbound endpoints (C), then a forwarding rule toward on-prem DNS resolver for on-prem sub-domain (corp.example.com) (E), and finally configure on-pre DNS resolver to forward queries to inbound endpoint (B).

upvoted 1 times

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vikasj1in

10 months, 2 weeks ago

Selected Answer: ACE

A. This step is necessary to direct queries for the "aws.example.com" domain from the on-premises DNS resolver to the Route 53 Resolver outbound endpoint. C. The inbound and outbound endpoints allow communication between on-premises and AWS environments. The inbound endpoint is associated with the on-premises DNS resolver, and the outbound endpoint is associated with the DNS resolver in the VPC. E. This step ensures that queries for the "corp.example.com" domain originating from the DNS resolver in the VPC are forwarded to the on-premises DNS resolver. B incorrect because there is no need to configure the on-premises DNS resolver to forward "aws.example.com" domain queries to the IP addresses of the inbound endpoint. D is incorrect because there is no need to create a Route 53 Resolver rule to forward "aws.example.com" domain queries to the IP addresses of the inbound endpoint. F is incorrect

upvoted 1 times

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Marfee400704

10 months, 3 weeks ago

I think that it's correct answer is CDE according to SPOTO products.

upvoted 1 times

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marfee

10 months, 3 weeks ago

I think that it's correcty answer is B & C & E.

upvoted 1 times

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AmSpOkE

11 months ago

Selected Answer: BCE

No doubts.

upvoted 1 times

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Snape

11 months, 2 weeks ago

Selected Answer: BCE

CEB in THAT order. C: create bidirectional resolver endpoints E: DNS queries from VPC are forwarded to On-prem B: DNS queries from On-prem are forwarded to VPC

upvoted 3 times

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