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Amazon ANS-C01 Exam - Topic 2 Question 67 Discussion

A company has two teams: Team A and Team B. Team A has VPCs that run in Account A. The team uses a transit gateway (TGW-A) to route traffic between workloads that run in the different VPCs. Similarly, Team has VPCs that run in Account B. Team uses a different transit gateway (TGW-B) to route traffic between workloads that run in the different VPCs.The company's network team manages the routing for Team A and Team . The network team wants to retire TGW-B and use a single transit gateway to manage routing for the VPCs of both teams.Which solution will meet this requirement with the LEAST operational overhead?
A) Create a resource share for TGW-A Share TGW-A with Account B. Create VPC attachments for the VPCs in Account . Configure routing for the VPCs in TGW-A route tables. Update the route tables of the VPCs in Account to forward traffic to TGW-A. Delete TGW-B attachments and TGW-B.
B) Create a resource share for TGW-A. Share TGW-A with Account . Replicate the TGW-B configuration to TGW-A to automatically start routing changes for the VPCs in Account . Delete TGW-B when routing changes are complete.
C) Create a new transit gateway (TGW-C) in Account A. Create a resource share for TGW-C. Share TGW-C with Account B. Create VPC attachments for the VPCs in Account A and Account . Configure routing for all the VPCs in TGW-C route tables. Update the route tables for the VPCs in Account A and Account to forward traffic to TGW-C. Delete TGW-A attachments and TGW-B attachments. Delete TGW-A and TGW-B.
D) Create a new transit gateway (TGW-C) in a new account (Account C). Create a resource share for TGW-C. Share TGW-C with Account A and Account B. Create VPC attachments for the VPCs in Account A and Account . Configure routing for all the VPCs in TGW-C route tables. Update the route tables for the VPCs in Account A and Account to forward traffic to TGW-C. Delete TGW-A attachments and TGW-B attachments. Delete TGW-A and TGW-B.

Amazon ANS-C01 Exam - Topic 2 Question 67 Discussion

Actual exam question for Amazon's ANS-C01 exam
Question #: 67
Topic #: 2
[All ANS-C01 Questions]

A company has two teams: Team A and Team B. Team A has VPCs that run in Account A. The team uses a transit gateway (TGW-A) to route traffic between workloads that run in the different VPCs. Similarly, Team has VPCs that run in Account B. Team uses a different transit gateway (TGW-B) to route traffic between workloads that run in the different VPCs.

The company's network team manages the routing for Team A and Team . The network team wants to retire TGW-B and use a single transit gateway to manage routing for the VPCs of both teams.

Which solution will meet this requirement with the LEAST operational overhead?

Show Suggested Answer Hide Answer
Suggested Answer: A

This solution minimizes operational overhead by using a single transit gateway (TGW-A) for both teams, while also leveraging resource sharing between accounts. This approach eliminates the need to create new transit gateways, thus reducing complexity and the operational overhead of managing multiple transit gateways.


by Lenna at Jun 16, 2026, 10:50 PM

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Reta
2 days ago
C is too complicated, why create a new TGW?
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Fausto
7 days ago
I think B is better, replicating the config sounds safer.
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Dalene
12 days ago
Option A seems the simplest, just share TGW-A.
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Rikki
17 days ago
I’m really unsure about option D. It seems like the most complicated solution with a new account involved, but maybe it’s better for isolation? I need to think this through more.
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Edelmira
22 days ago
I’m leaning towards option C, but creating a new transit gateway seems like it could add unnecessary overhead. I’m not confident about needing a new account either.
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Delmy
28 days ago
I remember practicing a similar question where we had to consolidate resources. I feel like option B could work too, but replicating the configuration sounds a bit complex.
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Charolette
1 month ago
I think option A makes the most sense since it directly shares TGW-A with Account B and seems to minimize changes. But I'm not entirely sure about the routing updates.
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