You are deploying an application on App Engine that needs to integrate with an on-premises database. For security purposes, your on-premises database must not be accessible through the public…

The correct answer is D. Deploy your application on App Engine flexible environment and use Cloud VPN to limit access to. When to choose the flexible environment" "Accesses the resources or services of your Google Cloud project that reside in the Compute Engine network." https://cloud.google.com/appengine/docs/the-appengine-environments

Submitted by yasin.bd· Mar 30, 2026Designing for security and compliance

Question

You are deploying an application on App Engine that needs to integrate with an on-premises database. For security purposes, your on-premises database must not be accessible through the public Internet. What should you do?

Options

ADeploy your application on App Engine standard environment and use App Engine firewall rules
BDeploy your application on App Engine standard environment and use Cloud VPN to limit access
CDeploy your application on App Engine flexible environment and use App Engine firewall rules to
DDeploy your application on App Engine flexible environment and use Cloud VPN to limit access to

How the community answered

(38 responses)

A
3% (1)
B
11% (4)
C
8% (3)
D
79% (30)

Explanation

When to choose the flexible environment" "Accesses the resources or services of your Google Cloud project that reside in the Compute Engine network." https://cloud.google.com/appengine/docs/the-appengine-environments

Topics

#App Engine flexible#Cloud VPN#on-premises connectivity#network security

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