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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?
Suggested Answer: C
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11 comments · newest first
JA
Jamey
11 months ago
Option A is solid, but I’d double-check the VPC settings.
RY
Ryan
11 months ago
Surprised that people think egress-only is a solution here!
LE
Lenna
12 months ago
I’m not sure about that, can’t you just use an internet gateway instead?
MA
Margo
12 months ago
Definitely agree, that’s the best option here.
ME
Mee
12 months ago
A NAT gateway with an Elastic IP is the way to go!
BE
Beata
1 year 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.
CH
Chun
1 year 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.
BE
Bernardine
1 year 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.
CY
Cyndy
1 year 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.
QU
Quentin
1 year 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.
AR
Arleen
1 year 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.