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

The video tutorial delves into the concept of security groups, comparing them with network ACLs, and explaining their rules, constraints, and applications within a Virtual Private Cloud (VPC). It highlights the stateful nature of security groups, their default settings, and how they differ from the stateless network ACLs. The tutorial also illustrates VPC architecture and discusses advanced configurations, including multi-homed instances and elastic network interfaces.

What is the maximum number of security groups that can be attached to a single instance?

• Three

• Five

• Seven

• Ten

Which of the following is true about security groups?

• They are stateless.

• They can only have deny rules.

• They operate at the instance level.

• They are attached to subnets.

How do network ACLs differ from security groups in terms of rule processing?

• Network ACLs evaluate all rules before allowing traffic.

• Security groups stop at the first matching rule.

• Network ACLs are stateful.

• Network ACLs stop at the first matching rule.

In a VPC, what is the role of an Internet Gateway?

• To manage security groups.

• To provide a private connection to a corporate network.

• To allow internal communication within the VPC.

• To connect the VPC to the Internet.

What is a key characteristic of security groups?

• They are automatically applied to all instances.

• They allow both allow and deny rules.

• They are stateless.

• They are stateful.

How can security groups be configured in terms of network interfaces?

• They are automatically bound to all network interfaces.

• They can be bound to multiple network interfaces.

• They can only be bound to the primary network interface.

• They cannot be bound to any network interface.

What happens to outbound traffic by default in a security group?

• Outbound traffic is allowed only if it matches an inbound rule.

• Outbound traffic is allowed only if inbound traffic is allowed.

• All outbound traffic is allowed.

• All outbound traffic is denied.