- A
Create two classic VPN tunnels from the same gateway to each on-premises gateway
Why wrong: Classic VPN does not provide HA; it has a lower SLA and no automatic failover.
- B
Use Cloud VPN with dynamic routing and a single tunnel to each site
Why wrong: Single tunnels do not provide HA. A single tunnel failure would disconnect a site.
- C
Create two separate HA VPN gateways in the same region, each connected to a different on-premises gateway
Why wrong: HA VPN already provides two tunnels; a single HA VPN gateway with two interfaces is sufficient. Using two gateways is unnecessary and may cause routing conflicts.
- D
Create one HA VPN gateway with two interfaces in two different regions, each connected to a separate on-premises VPN device
HA VPN uses two interfaces (one per region) to provide active-active or active-passive failover. This meets HA requirements.
Google ACE Planning and Configuring a Cloud Solution Practice Question
This ACE practice question tests your understanding of planning and configuring a cloud solution. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 has a VPC with an auto-mode network and wants to connect two on-premises data centers to their Google Cloud environment using Cloud VPN tunnels. They need high availability and must use the same VPC network. Which architecture meets these requirements?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Create one HA VPN gateway with two interfaces in two different regions, each connected to a separate on-premises VPN device
Option D is correct because an HA VPN gateway with two interfaces in two different regions provides region-level redundancy and meets the high-availability requirement. Each interface connects to a separate on-premises VPN device, ensuring that if one region or interface fails, traffic can still flow through the other. This architecture uses the same VPC network (auto-mode) and supports dynamic routing (BGP) for automatic failover.
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.
- ✗
Create two classic VPN tunnels from the same gateway to each on-premises gateway
Why it's wrong here
Classic VPN does not provide HA; it has a lower SLA and no automatic failover.
- ✗
Use Cloud VPN with dynamic routing and a single tunnel to each site
Why it's wrong here
Single tunnels do not provide HA. A single tunnel failure would disconnect a site.
- ✗
Create two separate HA VPN gateways in the same region, each connected to a different on-premises gateway
- ✓
Create one HA VPN gateway with two interfaces in two different regions, each connected to a separate on-premises VPN device
Why this is correct
HA VPN uses two interfaces (one per region) to provide active-active or active-passive failover. This meets HA requirements.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume multiple tunnels or gateways in the same region provide sufficient high availability, overlooking the need for region-level redundancy to protect against regional outages.
Detailed technical explanation
How to think about this question
HA VPN uses two external IP addresses per gateway (one per interface) and establishes two tunnels to each on-premises peer, typically with BGP sessions over each tunnel for dynamic route advertisement and failover. By deploying interfaces in two different regions, the solution leverages Google Cloud's regional independence, ensuring that a zonal or regional failure does not impact both tunnels simultaneously. This design aligns with Google's recommended architecture for multi-site connectivity with 99.99% SLA.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this ACE question test?
Planning and Configuring a Cloud Solution — This question tests Planning and Configuring a Cloud Solution — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create one HA VPN gateway with two interfaces in two different regions, each connected to a separate on-premises VPN device — Option D is correct because an HA VPN gateway with two interfaces in two different regions provides region-level redundancy and meets the high-availability requirement. Each interface connects to a separate on-premises VPN device, ensuring that if one region or interface fails, traffic can still flow through the other. This architecture uses the same VPC network (auto-mode) and supports dynamic routing (BGP) for automatic failover.
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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Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jul 4, 2026
This ACE practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the ACE exam.
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