AWS Certified Security - Specialty SCS-C02 — Topic 1 Question 135

Question

Two Amazon EC2 instances in different subnets should be able to connect to each other but cannot. It has been confirmed that other hosts in the same subnets are able to communicate successfully, and that security groups have valid ALLOW rules in place to permit this traffic. Which of the following troubleshooting steps should be performed?

Accepted Answer

Correct answer: B. The correct answer is B. Option B: Check inbound and outbound Network ACL rules, looking for DENY rules.

AWS Certified Security - Specialty SCS-C02 — Question 135