AWS Certified Advanced Networking - Specialty ANS-C01 — Topic 1 Question 96

Question

A company runs an application on Amazon EC2 instances. A network engineer implements a NAT gateway in the application's VPC to replace self-managed NAT instances. After the network engineer shifts traffic from the self-managed NAT instances to the NAT gateway, users begin to report issues. During troubleshooting, the network engineer discovers that the connection to the application is closing after approximately 6 minutes of inactivity. What should the network engineer do to resolve this issue?

Accepted Answer

Correct answer: A. The correct answer is A. Option A: Check for increases in the IdleTimeoutCount Amazon CloudWatch metric for the NAT gateway. Configure TCP keepalive on the application EC2 instances. Amazon EC2 provides resizable virtual servers when you need full control of the operating system. A NAT gateway lets private subnet resources reach the internet for outbound traffic only. Amazon CloudWatch collects metrics, logs and alarms to monitor and react to operational health.

AWS Certified Advanced Networking - Specialty ANS-C01 — Question 96