A user has created a subnet in VPC and launched an EC2 instance within it. The user has not selected the option to
assign the IP address while launching the instance. Which of the below mentioned statements is true with respect to this
scenario?

A.
The instance will always have a public DNS attached to the instance by default

B.
The user can directly attach an elastic IP to the instance

C.
The instance will never launch if the public IP is not assigned

D.
The user would need to create an internet gateway and then attach an elastic IP to the instance to connect from internet

Explanation:
A Virtual Private Cloud (VPC) is a virtual network dedicated to the user’s AWS account. A user can create a subnet with
VPC and launch instances inside that subnet. When the user is launching an instance he needs to select an option which
attaches a public IP to the instance. If the user has not selected the option to attach the public IP then it will only have a
private IP when launched. The user cannot connect to the instance from the internet. If the user wants an elastic IP to
connect to the instance from the internet he should create an internet gateway and assign an elastic IP to instance.