Discuss Amazon ANS-C01 Exam Topic 3 Question 63

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.)

AConfigure 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.

BAssociate TGW-B with the Direct Connect gateway. Advertise the VPC-B CIDR block under the allowed prefixes.

CConfigure another transit VIF on the Direct Connect connection and associate TGW-B. Advertise the VPC-B CIDR block under the allowed prefixes.

DConfigure 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.

EConfigure an AWS Site-to-Site VPN connection over the transit VIF to TGW-B as a VPN attachment.

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.

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22 comments · newest first

Bjorn Lopez 9 days ago

Going with B since linking TGW-B to the Direct Connect gateway and advertising VPC-B's CIDR under the allowed prefixes is the key tricky part.

Andrew Nelson 11 hours ago

↳ replying to Bjorn Lopez

The wording points directly to B, I agree with that.

Anna 2 months ago

A is interesting, but I think B and D are more efficient for connectivity.

Nakisha 2 months ago

I agree with D, but I’m not sure about E. It might complicate things.

Gearldine 2 months ago

D is definitely a strong choice. Inter-Region peering is essential here.

Lai 2 months ago

I’m leaning towards B and E. VPN could be a good backup.

Gail 3 months ago

I feel like A and C are also valid options. They seem straightforward.

Dominga 3 months ago

This question is tricky! I think B and D could work.

Alexia 3 months ago

I agree with B, it's straightforward and effective!

Muriel 3 months ago

C sounds good, but isn't it a bit overkill?

Norah 3 months ago

Wait, can you really use inter-Region peering like that?

Rutha 3 months ago

I think D could work too, but it seems more complex.

Tesha 4 months ago

Option B is definitely the way to go!

Terry 4 months ago

C sounds a bit overkill for just connecting VPC-B. Why not keep it simple?

Willard 4 months ago

Totally agree with B! It's straightforward and efficient.

Noel 4 months ago

Wait, can you really use inter-Region peering for this? Sounds complicated.

Luisa 6 months ago

I think D could work too, but not sure about the peering routes.

Skye 6 months ago

Option B seems like the best choice for direct connectivity.

Miesha 6 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.

Rusty 7 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.

Layla 7 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.

Gwenn 7 months ago

I remember something about inter-Region VPC peering, but I'm not sure if it would work with the Direct Connect setup.

Amazon ANS-C01 Exam - Topic 3 Question 63 Discussion