Cloud VPN setup can be done instantly and though it travels over internet, it is private in nature. Cloud interconnect needs physically dedicated connection.

Answer is C: Cloud VPN

C is correct

The fastest way to connect is to use Cloud VPN.

Answer is C: Cloud VPN

To establish private network connectivity between your on-premises network and workloads running in Google Cloud, you should use Google Cloud VPN (Virtual Private Network). Google Cloud VPN allows you to securely connect your on-premises network to your virtual private cloud (VPC) network in Google Cloud. It enables encrypted communication over the public internet, providing a secure and private connection between your on-premises environment and your cloud resources.

My answer is C, because You need to be able to set up the connection as soon as possible.

A. Cloud Interconnect

"Your organization needs to establish private network..." VPN = Virtual Private Network.

Cloud VPN set up can be done instantly & connection is private, even though data flows through public internet.

C is correct. As connection need to setup "as soon as possible", Cloud VPN can create any time. Cloud Interconnect need to order from 3rd party

Per Google's doc titled, Choosing a Network Connectivity product, it states the following, "If you need to encrypt traffic to Google Cloud, or you need a lower throughput solution, or you are experimenting with migrating your workloads to Google Cloud, you can choose Cloud VPN." https://cloud.google.com/network-connectivity/docs/how-to/choose-product

A and C are solution for private network interconnection, but C is more quick to implement, so the answer is C

B. soon as possible only on internet

C is correct Answer, Cloud VPN

I will go with Cloud VPN, as per Google the Cloud VPN can be established using a private and public IP both , Now here the main point or thing to focus is Bandwidth requirement if it is Private and your connection is in Google POP then we use Dedicated Interconnect or Partner Interconnect. Else for Public IP we use Direct peering Or carrier peering. https://cloud.google.com/blog/products/networking/google-cloud-network-connectivity-options-explained I hope this answer everybody questions (refer to diagram)

Cloud VPN is not Private In nature and it is over the Internet, This is as per Google Docs Then ... ?? How can this be the answer ? Can some one clarify please ??