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PROFESSIONAL-CLOUD-SECURITY-ENGINEER · Question #101

A customer is collaborating with another company to build an application on Compute Engine. The customer is building the application tier in their GCP Organization, and the other company is building…

The correct answer is A. VPC peering. VPC Peering allows private RFC 1918 connectivity between two VPC networks - even if they belong to different GCP organizations - entirely within Google's private network backbone, never traversing the public internet. This satisfies the strict requirement. Cloud VPN (B)…

Submitted by manish99· Apr 18, 2026Configuring network security

Question

A customer is collaborating with another company to build an application on Compute Engine. The customer is building the application tier in their GCP Organization, and the other company is building the storage tier in a different GCP Organization. This is a 3-tier web application. Communication between portions of the application must not traverse the public internet by any means. Which connectivity option should be implemented?

Options

  • AVPC peering
  • BCloud VPN
  • CCloud Interconnect
  • DShared VPC

How the community answered

(22 responses)
  • A
    73% (16)
  • B
    14% (3)
  • C
    5% (1)
  • D
    9% (2)

Explanation

VPC Peering allows private RFC 1918 connectivity between two VPC networks - even if they belong to different GCP organizations - entirely within Google's private network backbone, never traversing the public internet. This satisfies the strict requirement. Cloud VPN (B) encrypts traffic but still routes it over the public internet. Cloud Interconnect (C) is for connecting on-premises data centers to GCP, not for GCP-to-GCP cross-org connectivity. Shared VPC (D) is used to share a VPC across projects within the same organization, not across different organizations.

Topics

#VPC Peering#Cross-Organization Connectivity#Private Networking#GCP Networking

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