AWS Certified Advanced Networking - Specialty ANS-C01 — Topic 1 Question 58

Question

A company recently migrated its Amazon EC2 instances to VPC private subnets to satisfy a security compliance requirement. The EC2 instances now use a NAT gateway for internet access. After the migration, some long-running database queries from private EC2 instances to a publicly accessible third-party database no longer receive responses. The database query logs reveal that the queries successfully completed after 7 minutes but that the client EC2 instances never received the response. Which configuration change should a network engineer implement to resolve this issue?

Accepted Answer

Correct answer: C. The correct answer is C. Option C: Enable TCP keepalive on the client EC2 instances with a value of less than 300 seconds. Amazon EC2 provides resizable virtual servers when you need full control of the operating system.

AWS Certified Advanced Networking - Specialty ANS-C01 — Question 58