Professional Cloud ArchitectDesign for security and complianceEasy
A SaaS provider is building a multi-tenant application on Google Cloud. Each tenant's data and resources must be strictly isolated from other tenants, and the provider needs to apply different security policies and billing to each tenant. To achieve this, each tenant will have its own dedicated set of Google Cloud resources. Which organizational construct within Google Cloud is best suited to provide this strict isolation and independent management for each tenant?
- AFolder
- BGoogle Cloud Project
- CService Account
- DVPC Network
Show answer & explanationAnswer & explanation
Correct answer: B. Google Cloud Project
Google Cloud Projects provide a fundamental boundary for resource isolation, billing, and IAM policy application. Each project can have its own VPC network, resources, and independent billing, making it ideal for isolating individual tenants in a multi-tenant SaaS architecture.
Why the other options are wrong
- A. A Folder groups projects and inherits policies, but it does not provide the primary isolation boundary for resources or independent billing at the tenant level.
- C. A Service Account is an identity for applications, not an organizational construct for resource isolation.
- D. A VPC Network isolates network traffic, but resources outside the network (e.g., Cloud Storage buckets, BigQuery datasets) are not isolated at the same level as a project, nor does it provide independent billing.
Google Cloud Project
A Google Cloud Project is the fundamental container for all Google Cloud resources, providing a boundary for billing, quotas, resource management, and IAM policies.
- Primary isolation boundary for resources.
- Independent billing and quota management.
- Unit for applying IAM policies.
Memory trick: Organization holds folders, folders hold projects, projects hold resources.