AWS Certified Solutions Architect Associate (SAA-C03) - Working with Security Groups Lab

The video tutorial provides an in-depth look at AWS security groups, explaining their configuration, default settings, and how they are used with EC2 instances. It covers the creation of a new security group, detailing the setup of inbound and outbound rules, and demonstrates how to apply these groups to instances. The tutorial emphasizes the 'allow only' nature of security groups and the importance of understanding implicit deny rules.

How can you modify the security group of a running instance?

Describe how security groups can be cumulative in their permissions.

What is the significance of the 'deny is implicit' rule in security groups?

What happens if a port is not listed in the security group rules?