Google ACE Deploying and implementing a cloud solution Practice Question
This ACE practice question tests your understanding of deploying and implementing a cloud solution. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is migrating a legacy monolithic application to Google Cloud. The application runs on a single VM and contains both the web server and backend processes. The team wants to separate concerns and deploy the web tier on Cloud Run and the backend on Compute Engine. They need to allow the Cloud Run service to initiate HTTPS connections to the backend VM. What is the most secure way to accomplish this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Serverless VPC Access to connect Cloud Run to the VPC, and keep the VM internal
Option D is correct because Serverless VPC Access creates a direct, private connection between Cloud Run and your VPC, allowing the Cloud Run service to reach the backend VM using its internal IP address. This avoids exposing the VM to the public internet, which is the most secure approach for initiating HTTPS connections between the two tiers.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Assign a public IP to the backend VM and configure firewall rules to allow HTTPS from any source
Why it's wrong here
Exposing the VM to the public internet is insecure.
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Set up a VPN tunnel between Cloud Run and the VPC
Why it's wrong here
Cloud Run does not support VPN connections directly.
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Use Cloud NAT to provide outbound internet access to Cloud Run
Use Serverless VPC Access to connect Cloud Run to the VPC, and keep the VM internal
Why this is correct
Serverless VPC Access enables private communication without public exposure.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that Cloud NAT or public IPs are needed for serverless-to-VM communication, but the correct approach is to use Serverless VPC Access for private, secure connectivity without exposing the backend.
Detailed technical explanation
How to think about this question
Serverless VPC Access uses a connector that is deployed in your VPC and acts as a bridge, enabling Cloud Run to send requests to internal IP addresses without traversing the public internet. The connector uses a custom /28 subnet and routes traffic through the VPC, allowing you to leverage VPC firewall rules and private Google Access for additional control. In a real-world scenario, this setup is critical for compliance with regulations like PCI-DSS or HIPAA, where data must not leave the VPC boundary.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this ACE question in full detail.
Deploying and implementing a cloud solution — This question tests Deploying and implementing a cloud solution — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Serverless VPC Access to connect Cloud Run to the VPC, and keep the VM internal — Option D is correct because Serverless VPC Access creates a direct, private connection between Cloud Run and your VPC, allowing the Cloud Run service to reach the backend VM using its internal IP address. This avoids exposing the VM to the public internet, which is the most secure approach for initiating HTTPS connections between the two tiers.
What should I do if I get this ACE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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