Your company plans to set up a VPN connection between a VPC hosted in AWS and its on-premises data center. There is a need to ensure that on-prem to AWS connectivity remains highly available and at the same time to ensure cost is kept to a minimum. What would you do to ensure these requirements are kept?

Answer options:

A.By default, a VPN has two tunnels for high availability.
B.Create an additional Direct connect connection.
C.Create an additional VPC peering connection.
D.Create 2 VPN connections for high availability

Answer – A
As per AWS Docs,
To enable redundancy/high availability, each VPN connection has two tunnels by default that can be configured for high availability. The second tunnel can be used in case if the first tunnel fails.
Refer to page 120 on the below link:
https://docs.aws.amazon.com/vpn/latest/s2svpn/s2s-vpn-user-guide.pdf#VPC_VPN
https://aws.amazon.com/answers/networking/aws-single-data-center-ha-network-connectivity/