AWS Certified CloudOps Engineer - Associate SOA-C03

By Amazon · Question Mode

QuestionQ44

Networking and Content Delivery

A company runs Amazon EC2 Auto Scaling across multiple Availability Zones and must ensure that EC2 instances are launched in private subnets.

The company recently optimized its cloud infrastructure by reducing the number of NAT gateways in the company’s VPC to one. Following the infrastructure update, some EC2 instances lost internet connectivity. A CloudOps engineer must resolve the connectivity issue.

Which solution will meet this requirement?

Explanation

Private-subnet instances need a route-table default route for internet-bound traffic that targets a NAT gateway. Route tables that still point to NAT gateways that were removed will prevent outbound connectivity; updating them to use the remaining NAT gateway restores that connectivity.

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