Which of the below mentioned options is a valid entry for the main route table in this scenario?

A user has created a VPC with CIDR 20.0.0.0/16 using the wizard. The user has created a public
subnet CIDR (20.0.0.0/24. and VPN only subnets CIDR (20.0.1.0/24. along with the VPN gateway
(vgw-12345. to connect to the user’s data centre. Which of the below mentioned options is a valid
entry for the main route table in this scenario?

A.
Destination: 20.0.0.0/24 and Target: vgw-12345

B.
Destination: 20.0.0.0/16 and Target: ALL

C.
Destination: 20.0.1.0/16 and Target: vgw-12345

D.
Destination: 0.0.0.0/0 and Target: vgw-12345

Explanation:
The user can create subnets as per the requirement within a VPC. If the user wants to connect
VPC from his own data centre, he can setup a public and VPN only subnet which uses hardware
VPN access to connect with his data centre. When the user has configured this setup with Wizard,
it will create a virtual private gateway to route all traffic of the VPN subnet. Here are the valid
entries for the main route table in this scenario: Destination: 0.0.0.0/0 & Target: vgw-12345 (To
route all internet traffic to the VPN gateway.
Destination: 20.0.0.0/16 & Target: local (To allow local routing in VPC.