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Amazon ANS-C01 Exam - Topic 3 Question 63 Discussion

A company has its production VPC (VPC-A) in the eu-west-1 Region in Account 1. VPC-A is attached to a transit gateway (TGW-A) that is connected to an on-premises data center in Dublin, Ireland, by an AWS Direct Connect transit VIF that is configured for an AWS Direct Connect gateway. The company also has a staging VPC (VPC-B) that is attached to another transit gateway (TGW-B) in the eu-west-2 Region in Account 2.A network engineer must implement connectivity between VPC-B and the on-premises data center in Dublin.Which solutions will meet these requirements? (Choose two.)
B) Associate TGW-B with the Direct Connect gateway. Advertise the VPC-B CIDR block under the allowed prefixes. and C) Configure another transit VIF on the Direct Connect connection and associate TGW-B. Advertise the VPC-B CIDR block under the allowed prefixes.
A) Configure inter-Region VPC peering between VPC-A and VPC-B. Add the required VPC peering routes. Add the VPC-B CIDR block in the allowed prefixes on the Direct Connect gateway association.
D) Configure inter-Region transit gateway peering between TGW-A and TGW-B. Add the peering routes in the transit gateway route tables. Add both the VPC-A and the VPC-B CIDR block under the allowed prefix list in the Direct Connect gateway association.
E) Configure an AWS Site-to-Site VPN connection over the transit VIF to TGW-B as a VPN attachment.

Amazon ANS-C01 Exam - Topic 3 Question 63 Discussion

Actual exam question for Amazon's ANS-C01 exam
Question #: 63
Topic #: 3
[All ANS-C01 Questions]

A company has its production VPC (VPC-A) in the eu-west-1 Region in Account 1. VPC-A is attached to a transit gateway (TGW-A) that is connected to an on-premises data center in Dublin, Ireland, by an AWS Direct Connect transit VIF that is configured for an AWS Direct Connect gateway. The company also has a staging VPC (VPC-B) that is attached to another transit gateway (TGW-B) in the eu-west-2 Region in Account 2.

A network engineer must implement connectivity between VPC-B and the on-premises data center in Dublin.

Which solutions will meet these requirements? (Choose two.)

Show Suggested Answer Hide Answer
Suggested Answer: B, C

B . Associate TGW-B with the Direct Connect gateway. Advertise the VPC-B CIDR block under the allowed prefixes. This will allow traffic from VPC-B to be sent over the Direct Connect connection to the on-premises data center via TGW-B. C. Configure another transit VIF on the Direct Connect connection and associate TGW-B. Advertise the VPC-B CIDR block under the allowed prefixes. This will enable the use of the Direct Connect connection for VPC-B's traffic by connecting TGW-B to the Direct Connect gateway.


by Corrina at Apr 10, 2026, 03:02 AM

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Anna
1 day ago
A is interesting, but I think B and D are more efficient for connectivity.
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Nakisha
7 days ago
I agree with D, but I’m not sure about E. It might complicate things.
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Gearldine
12 days ago
D is definitely a strong choice. Inter-Region peering is essential here.
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Lai
17 days ago
I’m leaning towards B and E. VPN could be a good backup.
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Gail
22 days ago
I feel like A and C are also valid options. They seem straightforward.
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Dominga
27 days ago
This question is tricky! I think B and D could work.
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Alexia
1 month ago
I agree with B, it's straightforward and effective!
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Muriel
1 month ago
C sounds good, but isn't it a bit overkill?
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Norah
1 month ago
Wait, can you really use inter-Region peering like that?
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Rutha
2 months ago
I think D could work too, but it seems more complex.
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Tesha
2 months ago
Option B is definitely the way to go!
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Terry
2 months ago
C sounds a bit overkill for just connecting VPC-B. Why not keep it simple?
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Willard
2 months ago
Totally agree with B! It's straightforward and efficient.
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Noel
2 months ago
Wait, can you really use inter-Region peering for this? Sounds complicated.
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Luisa
4 months ago
I think D could work too, but not sure about the peering routes.
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Skye
4 months ago
Option B seems like the best choice for direct connectivity.
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Miesha
5 months ago
I vaguely remember that inter-Region transit gateway peering could help with connectivity, but I'm uncertain about the specifics of the route tables and prefix lists.
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Rusty
5 months ago
I practiced a similar question about transit gateways and Direct Connect, and I feel like configuring another transit VIF might be a good approach, but I need to double-check.
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Layla
5 months ago
I think associating TGW-B with the Direct Connect gateway could be a valid option, but I can't recall all the details about the allowed prefixes.
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Gwenn
5 months ago
I remember something about inter-Region VPC peering, but I'm not sure if it would work with the Direct Connect setup.
upvoted 0 times
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