You have an environment that consists of a public subnet using Amazon VPC and 3 instances that are running in this subnet. These three instances can successfully communicate with other hosts on the Internet. You launch a fourth instance in the same subnet, using the same AMI and security group configuration you used for the others, but find that this instance cannot be accessed from the Internet. What should you do to enable internet access?
A) Deploy a NAT instance into the public subnet.
B) Modify the routing table for the public subnet
C) Configure a publically routable IP Address In the host OS of the fourth instance.
D) Assign an Elastic IP address to the fourth instance.

Question

Quizplus · Accepted Answer

The fourth instance needs a public IP address to be accessible from the Internet. Assigning an Elastic IP address will provide it with a public IP.

You Have an Environment That Consists of a Public Subnet