Question 18

The following architecture exists for an application:

There are EC2 Instances in numerous AZ’s at the back of an ELB.

The launching of the EC2 Instances is done through an Auto Scaling Group.

A singular NAT Instance is utilized so that instances can download updates from the internet.

Out of the following options which one is a limitation to the architecture?

1 The Auto Scaling Group

2 The NAT Instance

3 The ELB

4 The EC2 Instances