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Exam AWS Certified Advanced Networking - Specialty ANS-C01 topic 1 question 236 discussion

Exam question from Amazon's AWS Certified Advanced Networking - Specialty ANS-C01
Question #: 236
Topic #: 1
[All AWS Certified Advanced Networking - Specialty ANS-C01 Questions]

A logistics company has multiple VPCs in an AWS Region. The company uses a transit gateway to connect the VPCs. The company has several on-premises offices that connect to the transit gateway by using AWS Site-to-Site VPN connections over the internet. The company has configured one transit gateway VPN attachment for each office.

Route propagation is enabled on all route tables. Each Site-to-Site VPN connection uses two tunnels in an active-passive configuration. The company configured each office with appropriate static routes on both the Site-to-Site VPN connection and the office’s customer gateway.

The company wants to use both IPsec tunnels of every office to maximize the overall VPN connection bandwidth.

Which design changes are necessary to meet these requirements?

  • A. Create an AWS Transit Gateway Connect attachment for each office Use the existing VPN attachments as the transport for the new Connect attachments. Set up a Generic Routing
    Encapsulation (GRE) tunnel on each customer gateway that terminates on the Connect attachment for each office. Move the static routes from the transit gateway VPN attachment to the customer gateway for the transit gateway Connect attachment.
  • B. Enable equal-cost multi-path (ECMP) routing on the transit gateway. Ensure ECMP is supported by and enabled on the customer gateways. Enable ECMP on the Site-to-Site VPN connection. Ensure static routes on the customer gateways have equal metrics and administrative distance.
  • C. Enable equal-cost multi-path (ECMP) routing on the transit gateway. (Ensure ECMP is supported by and enabled on the customer gateways. Change the routing configuration between the transit gateway and the customer gateways from static routing to BGP. Remove related static routes from the customer gateways.
  • D. Enable equal-cost multi-path (ECMP) routing on the transit gateway. Ensure ECMP is supported by and enabled on the customer gateways. Change the routing configuration between the transit gateway and the customer gateways from static routing to BGP. Ensure the customer gateway applies the correct community strings to give the transit gateway the ability to perform ECMP forwarding.
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Suggested Answer: C 🗳️
by jfedotov at Jan. 22, 2025, 2:17 p.m.
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jfedotov
2 weeks ago
Selected Answer: C
C is the answer
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