What is a security group in Amazon AWS?
A) A UNIX Group that gives permission to edit security settings
B) An authorized group of instances that control access to other resources
C) A virtual firewall that controls the traffic for one or more instances
D) An Access Control List (ACL) for AWS resources

Question

Quizplus · Accepted Answer

A security group in AWS acts as a virtual firewall that controls the inbound and outbound traffic for one or more instances, allowing you to specify rules to permit or deny traffic.

What Is a Security Group in Amazon AWS