Secure Connection Between On-Premises Data Center and Oracle Cloud Infrastructure (OCI)

C.

To quickly establish a secure connection between an on-premises data center and Oracle Cloud Infrastructure (OCI), you would need to implement a Virtual Private Network ( VPN) solution. The correct answer in this case is option C, IPSec VPN.

An IPSec VPN is a secure and encrypted tunnel between your on-premises network and your virtual cloud network (VCN) in OCI. It allows you to securely extend your on-premises network to the cloud over the internet, providing a private connection that is isolated from the public internet.

Here's a brief overview of the other options:

A. Internet Gateway: An Internet Gateway is a horizontally scalable, highly available virtual router that provides a single point of access to the public internet. It is used to route traffic between your VCN and the internet, but it does not provide a secure connection to your on-premises network.

B. VCN Peering: VCN Peering allows you to connect two VCNs in the same region using private IP addresses. It does not provide a direct connection between your on-premises network and your VCN.

D. FastConnect: FastConnect provides a dedicated, private connection between your on-premises data center and your VCN over a supported provider's network. It is typically used for high-bandwidth, low-latency workloads that require a dedicated, private connection.

In summary, for a POC that requires quickly establishing a secure connection between an on-premises data center and OCI, an IPSec VPN is the recommended option.