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Amazon SAP-C02 Exam - Topic 11 Question 3 Discussion

A company is building a serverless application that runs on an AWS Lambda function that is attached to a VPC. The company needs to integrate the application with a new service from an external provider. The external provider supports only requests that come from public IPv4 addresses that are in an allow list.The company must provide a single public IP address to the external provider before the application can start using the new service.Which solution will give the application the ability to access the new service?
C) Deploy an internet gateway. Associate an Elastic IP address with the internet gateway. Configure the Lambda function to use the internet gateway.
A) Deploy a NAT gateway. Associate an Elastic IP address with the NAT gateway. Configure the VPC to use the NAT gateway.
B) Deploy an egress-only internet gateway. Associate an Elastic IP address with the egress-only internet gateway. Configure the elastic network interface on the Lambda function to use the egress-only internet gateway.
D) Deploy an internet gateway. Associate an Elastic IP address with the internet gateway. Configure the default route in the public VPC route table to use the internet gateway.

Amazon SAP-C02 Exam - Topic 11 Question 3 Discussion

Actual exam question for Amazon's SAP-C02 exam
Question #: 3
Topic #: 11
[All SAP-C02 Questions]

A company is building a serverless application that runs on an AWS Lambda function that is attached to a VPC. The company needs to integrate the application with a new service from an external provider. The external provider supports only requests that come from public IPv4 addresses that are in an allow list.

The company must provide a single public IP address to the external provider before the application can start using the new service.

Which solution will give the application the ability to access the new service?

Show Suggested Answer Hide Answer
Suggested Answer: C

by Haydee at Dec 27, 2022, 12:13 AM

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Jamey
10 months ago
Option A is solid, but I’d double-check the VPC settings.
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Ryan
10 months ago
Surprised that people think egress-only is a solution here!
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Lenna
10 months ago
I’m not sure about that, can’t you just use an internet gateway instead?
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Margo
11 months ago
Definitely agree, that’s the best option here.
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Mee
11 months ago
A NAT gateway with an Elastic IP is the way to go!
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Beata
11 months ago
I remember that an Elastic IP is crucial for public access, but I can't recall if the internet gateway or NAT gateway is the right way to go for this specific scenario.
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Chun
11 months ago
I practiced a similar question about VPC configurations, and I think deploying an internet gateway could work, but I’m not sure if it’s the best option here.
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Bernardine
11 months ago
I'm a bit unsure about the differences between the egress-only internet gateway and the NAT gateway. I feel like I might confuse them during the exam.
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Cyndy
11 months ago
I remember studying NAT gateways and how they can provide a public IP for outbound traffic. I think option A might be the right choice.
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Quentin
11 months ago
I think this one is pretty straightforward. A hotel in the downtown area of a large city is likely a metropolitan hotel, so I'll go with option A.
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Arleen
11 months ago
No problem, I've done similar tasks before. I'll just follow the instructions closely, use the provided values, and verify everything is working correctly at the end.
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