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Exam AWS Certified Advanced Networking - Specialty ANS-C01 All Questions

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Exam AWS Certified Advanced Networking - Specialty ANS-C01 topic 1 question 81 discussion

Exam question from Amazon's AWS Certified Advanced Networking - Specialty ANS-C01
Question #: 81
Topic #: 1
[All AWS Certified Advanced Networking - Specialty ANS-C01 Questions]

A company is migrating an application from on premises to AWS. The company will host the application on Amazon EC2 instances that are deployed in a single VPC. During the migration period, DNS queries from the EC2 instances must be able to resolve names of on-premises servers. The migration is expected to take 3 months After the 3-month migration period, the resolution of on-premises servers will no longer be needed.

What should a network engineer do to meet these requirements with the LEAST amount of configuration?

  • A. Set up an AWS Site-to-Site VPN connection between on premises and AWS. Deploy an Amazon Route 53 Resolver outbound endpoint in the Region that is hosting the VPC.
  • B. Set up an AWS Direct Connect connection with a private VIF. Deploy an Amazon Route 53 Resolver inbound endpoint and a Route 53 Resolver outbound endpoint in the Region that is hosting the VPC.
  • C. Set up an AWS Client VPN connection between on premises and AWS. Deploy an Amazon Route 53 Resolver inbound endpoint in the VPC.
  • D. Set up an AWS Direct Connect connection with a public VIF. Deploy an Amazon Route 53 Resolver inbound endpoint in the Region that is hosting the VPC. Use the IP address that is assigned to the endpoint for connectivity to the on-premises DNS servers.
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Suggested Answer: A 🗳️
by ITgeek at April 25, 2023, 1:01 a.m.
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takecoffe
Highly Voted 1 year, 5 months ago
Selected Answer: A
Setting up an AWS Site-to-Site VPN connection between on premises and AWS would enable a secure and encrypted connection over the public internet1. Deploying an Amazon Route 53 Resolver outbound endpoint in the Region that is hosting the VPC would enable forwarding of DNS queries for on-premises servers to the on-premises DNS servers2. This would allow EC2 instances in the VPC to resolve names of on-premises servers during the migration period. After the migration period, the Route 53 Resolver outbound endpoint can be deleted with minimal configuration changes.
upvoted 8 times
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woorkim
Most Recent 3 days, 6 hours ago
A is correct. DX require 3 MONTH!
upvoted 1 times
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hogtrough
5 months ago
Selected Answer: A
DX typically takes a few months just to get set up so that removes B and D Client VPN isn't really an option here. That's for end users, not for connectivity between locations.
upvoted 2 times
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Raphaello
6 months, 4 weeks ago
Selected Answer: A
Temporary solution for 3 months, then DX is not an appropriate option. Client VPN is definitely wrong. That leaves site-to-site VPN option, with is A..without even fully reading it.
upvoted 2 times
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Arad
1 year ago
Selected Answer: A
Definitely A.
upvoted 1 times
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tom_cat
1 year, 6 months ago
Selected Answer: A
S2S VPN & outbound resolver
upvoted 2 times
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ITgeek
1 year, 6 months ago
Selected Answer: A
Site to Site VPN
upvoted 3 times
...

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