You created your own VPC and subnet in AWS and launched an instance in that subnet. On attaching an Internet Gateway to the VPC, you see that the instance has a public IP. The route table is shown below.
Still, the instance cannot reach the Internet. What changes are required to be made to the route table to ensure that the issue is resolved?

Answer options:

A.Add the following entry to the route table – Destination as 0.0.0.0/0 and Target as Internet Gateway.
B.Modify the above route table – Destination as 10.0.0.0/16 and Target as Internet Gateway.
C.Add the following entry to the route table –Destination as 10.0.0.0/16 and Target as Internet Gateway.
D.Add the following entry to the route table - Destination as 0.0.0.0/16 and Target as Internet Gateway.

Correct Answer – A
The route table needs to be modified as shown below to ensure that routes from the Instance reach the Internet.
Hence by default, all other options become invalid.
For more information on Route Tables, please visit the URL below.
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Route_Tables.html