Amazon ANS-C01 Exam - Topic 1 Question 45 Discussion

Actual exam question for Amazon's ANS-C01 exam

Question #: 45
Topic #: 1

A company has an AWS account with four VPCs in the us-east-1 Region. The VPCs consist of a development VPC and three production VPCs that host various workloads.

The company has extended its on-premises data center to AWS with AWS Direct Connect by using a Direct Connect gateway. The company now wants to establish connectivity to its production VPCs and development VPC from on premises. The production VPCs are allowed to route data to each other. However, the development VPC must be isolated from the production VPCs. No data can flow between the development VPC and the production VPCs.

In preparation to implement this solution, a network engineer creates a transit gateway with a single transit gateway route table. Default route table association and default route table propagation are turned off. The network engineer attaches the production VPCs. the development VPC. and the Direct Connect gateway to the transit gateway. For each VPC route table, the network engineer adds a route to 0.0.0.0/0 with the transit gateway as the next destination.

Which combination of steps should the network engineer take next to complete this solution? (Select THREE.)

AAssociate the production VPC attachments with the existing transit gateway route table. Propagate the routes from these attachments.

BAssociate all the attachments with the existing transit gateway route table. Propagate the routes from these attachments.

CAssociate the Direct Connect gateway attachment with the existing transit gateway route table. Propagate the Direct Connect gateway attachment to this route table.

DChange the security group inbound rules on the existing transit gateway network interfaces in the development VPC to allow connections to and from the on-premises CIDR range only.

ECreate a new transit gateway route table. Associate the new route table with the development VPC attachment. Propagate the Direct Connect gateway and development VPC attachment to the new route table.

FCreate a new transit gateway with default route table association and default route table propagation turned on. Attach the Direct Connect gateway and development VPC to the new transit gateway.

Show Suggested Answer

Suggested Answer: A, C, D

by Jaclyn at Jan 24, 2025, 08:21 PM

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Evangelina

3 months ago

B is definitely the way to go for the production VPCs!

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Bette

3 months ago

Wait, why would we create a new transit gateway? Seems unnecessary.

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Shaquana

3 months ago

I think option E makes the most sense for the development VPC.

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Penney

4 months ago

Totally agree, isolation is key here!

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Lenna

4 months ago

The development VPC needs to be isolated from production.

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Remedios

4 months ago

I’m a bit confused about the security groups; I think option D might be necessary to restrict access, but I’m not certain if it’s one of the required steps.

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Lacresha

4 months ago

I practiced a similar question where we had to manage route propagation, and I feel like option A could be the right choice for the production VPCs.

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Janna

4 months ago

I’m not entirely sure, but I think option E sounds right because it talks about creating a new route table specifically for the development VPC.

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Olive

5 months ago

I remember that we need to ensure the development VPC is isolated, so I think we shouldn't propagate routes from it to the production VPCs.

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Terrilyn

5 months ago

I'm not sure about the security group part. Do I really need to change the inbound rules on the transit gateway network interfaces? That seems like an extra step that might not be necessary.

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Johnson

5 months ago

This seems straightforward enough. I'll just associate all the attachments with the existing transit gateway route table and propagate the routes. That should give me the connectivity I need.

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Velda

5 months ago

Okay, I think I've got this. The key is to create a new transit gateway route table for the development VPC, and then propagate the Direct Connect gateway and development VPC attachments to that route table. That should do the trick.

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Aileen

5 months ago

Hmm, I'm a bit confused by all the different VPCs and route tables. I'll need to really focus on understanding the network topology and the specific requirements before I can start solving this.

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Lisbeth

5 months ago

This looks like a tricky question, but I think I have a good strategy. I'll need to carefully read through the requirements and think about how to isolate the development VPC while still allowing connectivity to the production VPCs.

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William

1 year ago

I also believe we should associate all the attachments with the existing transit gateway route table and propagate the routes.

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Mel

1 year ago

Yes, that sounds like a good idea. We need to ensure the production VPCs can communicate with each other.

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Suzi

1 year ago

I think we should associate the production VPC attachments with the existing transit gateway route table and propagate the routes.

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Johanna

1 year ago

I'm just here for the free snacks, but if you're asking, I'd say A, C, and E sound like the way to go.

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Mel

11 months ago

E) Create a new transit gateway route table. Associate the new route table with the development VPC attachment. Propagate the Direct Connect gateway and development VPC attachment to the new route table.

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Rosendo

11 months ago

C) Associate the Direct Connect gateway attachment with the existing transit gateway route table. Propagate the Direct Connect gateway attachment to this route table.

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