Google Cloud Professional Cloud Security Engineer Practice Exam

What mode should you use in VPC Service Controls to make changes to perimeters without blocking resource access?

1. Active mode

2. Dry run

3. Audit mode

4. Monitoring mode

The correct answer is: Dry run

The use of "Dry run" mode in VPC Service Controls is specifically designed to allow users to make changes to service perimeters without affecting access to resources. This mode is useful for testing potential changes before they are implemented in a way that would impact existing operations. When utilizing "Dry run," any modifications you intend to make will be simulated, enabling you to see what the outcome would be without actually enforcing the changes. This helps to prevent unintended disruptions to access or service availability while you finalize your security configurations. It acts as a safeguard, providing insight into how proposed adjustments might influence access patterns without enforcing restrictions immediately. Understanding this framework is critical, as it allows security engineers to assess potential configurations, ensuring that they maintain a balance between securing resources and allowing operational continuity.