AWS Certified Solutions Architect - Associate SAA-C03 — Topic 1 Question 370

Question

A company runs a public three-tier web application in a VPC. The application runs on Amazon EC2 instances across multiple Availability Zones. The EC2 instances that run in private subnets need to communicate with a license server over the internet. The company needs a managed solution that minimizes operational maintenance. Which solution meets these requirements?

Accepted Answer

Correct answer: C. The correct answer is C. Option C: Provision a NAT gateway in a public subnet. Modify each private subnet's route table with a default route that points to the NAT gateway. A NAT gateway lets private subnet resources reach the internet for outbound traffic only. By spanning multiple Availability Zones / adding redundancy, this option provides the high availability and resilience required.

AWS Certified Solutions Architect - Associate SAA-C03 — Question 370