Amazon Exam ANS-C01 Topic 5 Question 21 Discussion

Actual exam question for Amazon's ANS-C01 exam

Question #: 21
Topic #: 5

A company is deploying third-party firewall appliances for traffic inspection and NAT capabilities in its VPC. The VPC is configured with private subnets and public subnets. The company needs to deploy the firewall appliances behind a load balancer.

Which architecture will meet these requirements MOST cost-effectively?

ADeploy a Gateway Load Balancer with the firewall appliances as targets. Configure the firewall appliances with a single network interface in a private subnet. Use a NAT gateway to send the traffic to the internet after inspection.

BDeploy a Gateway Load Balancer with the firewall appliances as targets. Configure the firewall appliances with two network interfaces: one network interface in a private subnet and another network interface in a public subnet. Use the NAT functionality on the firewall appliances to send the traffic to the internet after inspection.

CDeploy a Network Load Balancer with the firewall appliances as targets. Configure the firewall appliances with a single network interface in a private subnet. Use a NAT gateway to send the traffic to the internet after inspection.

DDeploy a Network Load Balancer with the firewall appliances as targets. Configure the firewall appliances with two network interfaces: one network interface in a private subnet and another network interface in a public subnet. Use the NAT functionality on the firewall appliances to send the traffic to the internet after inspection.

Show Suggested Answer

Suggested Answer: B

by Melodie at Mar 05, 2024, 10:39 PM

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Denae

5 months ago

That's true, Buck. Cost is always a big factor to consider in deployments like these.

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Buck

5 months ago

I see your point, Nilsa. But option A might be sufficient if the company is looking to minimize costs while still meeting the basic requirements.

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Nilsa

6 months ago

I disagree, I believe option B makes more sense because it provides better security with the additional network interface in the public subnet.

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Denae

6 months ago

I think option A is the most cost-effective solution.

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Rodrigo

6 months ago

I prefer option D. Having two network interfaces can improve performance and security.

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Natalie

6 months ago

That's a good point. Option B does provide more flexibility in terms of network interfaces.

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Karrie

6 months ago

I disagree. Option B seems better because it allows for better control over the traffic flow.

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Natalie

6 months ago

I think option A would be the most cost-effective.

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Sylvia

7 months ago

I'm not sure, you guys. I was kind of leaning towards option A, with the Gateway Load Balancer and the NAT gateway. I feel like that might be a bit more scalable and reliable in the long run, even if it's not the absolute cheapest option. But I'm open to being convinced otherwise. What do you all think?

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Novella

7 months ago

I'm leaning towards option B as well. The only thing I'm wondering about is the performance impact of having the firewall appliances handle the NAT functionality. I wonder if that could potentially become a bottleneck, especially if we're dealing with high traffic volumes. But overall, I think it's the best option presented here.

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Zachary

7 months ago

I agree with Orville on option B. It seems like the most efficient and cost-effective way to meet the requirements. Plus, I like the idea of using the firewall appliances' own NAT functionality instead of relying on a separate NAT gateway. It streamlines the setup and reduces the number of moving parts.

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Orville

7 months ago

Hmm, this question seems pretty straightforward. I think option B is the most cost-effective solution here. Using the Gateway Load Balancer and configuring the firewall appliances with two network interfaces, one in a private subnet and another in a public subnet, allows us to leverage the NAT functionality on the firewall appliances to send the traffic to the internet after inspection. This way, we don't need to set up a separate NAT gateway, which would add additional cost.

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