Your company needs to create its own VPN-based EC2 Instances.
These Instances will allow 2 VPCs in different regions to talk to each other.
You've created one VPN instance in one subnet in one VPC and another Instance in another subnet in another VPC.
You are establishing the communication via the Internet gateway.
What should extra consideration be in place in such a configuration?
Click on the arrows to vote for the correct answer
A. B. C. D.Answer - D.
You have to consider the high availability of the Instances.
In AWS Managed VPN, there are 2 tunnels created.
So automatically there is high availability in place.
But here, if either Instance goes down, the connection is broken.
Options A and C are incorrect since these are not key requirements.
Option B is incorrect since the individual EC2 Instances are the termination points.
For more information on such an example, please visit the below link.
https://aws.amazon.com/articles/connecting-multiple-vpcs-with-ec2-instances-ipsec/When establishing a VPN connection between two VPCs in different regions via the Internet gateway, there are several considerations that should be taken into account.
Option A: Placing a NAT instance in front of both of the VPN connections
A NAT (Network Address Translation) instance is not required in this scenario. NAT instances are typically used to allow instances in a private subnet to access the Internet, which is not relevant in this case.
Option B: Placing a Virtual private gateway as the termination endpoint
A Virtual Private Gateway (VGW) is a logical representation of an Amazon Web Services (AWS) VPN connection. VGWs can be used to establish a secure and private connection between a VPC and a remote network. In this scenario, VGW should be placed as the termination endpoint for the VPN connections between the two VPCs. By doing so, the traffic between the two VPCs is encrypted and traverses over the Internet securely.
Option C: Using a private hosted zone in Route 53
A private hosted zone in Route 53 is not relevant in this scenario. Private hosted zones are used to resolve DNS queries between instances in a VPC and the resources within a private network.
Option D: Having multiple VPN Instances for high availability
Having multiple VPN instances for high availability is a best practice, but not required. Having multiple VPN instances can provide redundancy and fault tolerance in case of failure of a single instance.
In conclusion, Option B - Placing a Virtual private gateway as the termination endpoint is the correct answer for this scenario.