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Exam AWS Certified Advanced Networking - Specialty ANS-C01 topic 1 question 158 discussion

Exam question from Amazon's AWS Certified Advanced Networking - Specialty ANS-C01
Question #: 158
Topic #: 1
[All AWS Certified Advanced Networking - Specialty ANS-C01 Questions]

A network engineer is evaluating a network setup for a global retail company. The company has an AWS Direct Connect connection between its on-premises data center and the AWS Cloud. The company has AWS resources in the eu-west-2 Region. These resources consist of multiple VPCs that are attached to a transit gateway.

The company recently provisioned a few AWS resources in the eu-central-1. Region in a single VPC close to its users in this area. The network engineer must connect the resources in eu-central-1 with the on-premises data center and the resources in eu-west-2. The solution must minimize changes to the Direct Connect connection.

What should the network engineer do to meet these requirements?

  • A. Create a new virtual private gateway. Attach the new virtual private gateway to the VPC in eu-central-1. Use a transit VIF to connect the VPC and the Direct Connect router.
  • B. Create a new transit gateway in eu-central-1. Create a peering attachment request to the transit gateway in eu-west-2. Add a static route in the transit gateway route table in eu-central-1 to point to the transit gateway peering attachment. Accept the peering request. Add a static route in the transit gateway route table in eu-west-2 to point to the new transit gateway peering attachment.
  • C. Create a new transit gateway in eu-central-1. Use an AWS Site-to-Site VPN connection to peer both transit gateways. Add a static route in the transit gateway route table in eu-central-1 to point to the transit gateway VPN attachment. Add a static route in the transit gateway route table in eu-west-2 to point to the new transit gateway peering attachment.
  • D. Create a new virtual private gateway. Attach the new virtual private gateway to the VPC in eu-central-1. Use a public VIF to connect the VPC and the Direct Connect router.
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Suggested Answer: B 🗳️
by ISSDoksim at July 31, 2023, 3:40 a.m.
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AzureDP900
2 months ago
Selected Answer: B
This option allows for the minimum number of changes to the existing Direct Connect connection while still providing connectivity between the resources in eu-central-1 and eu-west-2.
upvoted 1 times
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woorkim
2 months, 3 weeks ago
Selected Answer: B
The best solution is B. Reasoning: Meets requirement of minimizing changes to Direct Connect Leverages existing transit gateway infrastructure Provides direct connectivity between regions Uses transit gateway peering for efficient routing Minimal additional configuration Maintains network segmentation and security Scales well with future expansion
upvoted 1 times
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WherecanIstart
11 months, 4 weeks ago
Selected Answer: B
B is the right answer. VPCs in different regions can't attach to the same Transit Gateway. You need to create a Transit Gateway in each region and peer the TGWs.
upvoted 1 times
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michele_scar
1 year ago
Selected Answer: B
A, C, D wrong definitions
upvoted 1 times
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Certified101
1 year, 7 months ago
Selected Answer: B
B seems correct
upvoted 4 times
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ISSDoksim
1 year, 7 months ago
B - https://aws.amazon.com/blogs/networking-and-content-delivery/building-a-global-network-using-aws-transit-gateway-inter-region-peering/
upvoted 4 times
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