PCNE Practice Question: Designing, planning, and prototyping a GCP network
This PCNE practice question tests your understanding of designing, planning, and prototyping a gcp network. 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.
Which THREE actions are required to configure a High-Availability Cloud VPN (HA VPN) with dynamic routing to an on-premises peer?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create two VPN tunnels, each associated with a different Cloud VPN gateway interface
Option A is correct because HA VPN requires two tunnels, each attached to a different interface of the Cloud VPN gateway, to provide redundancy and failover. This ensures that if one tunnel or interface fails, traffic can continue through the other tunnel, maintaining connectivity to the on-premises peer.
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 VPN tunnels, each associated with a different Cloud VPN gateway interface
Why this is correct
Two tunnels provide redundancy.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create two separate Cloud Routers, one for each tunnel
Why it's wrong here
A single Cloud Router can manage BGP sessions for both tunnels.
✓
Allocate two external IP addresses for the Cloud VPN gateway
Why this is correct
HA VPNgateway has two interfaces, each with a unique external IP.
Related concept
Read the scenario before looking for a memorised answer.
✓
Create a Cloud Router in the same region as the VPN gateway
Why this is correct
Cloud Router is required for dynamic routing (BGP).
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure static routes for the remote network in the VPC
Why it's wrong here
Dynamic routing uses BGP; static routes are not required.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that you need separate Cloud Routers for each tunnel, but HA VPN uses a single Cloud Router to manage BGP sessions for both tunnels, and static routes are not used with dynamic routing.
Detailed technical explanation
How to think about this question
HA VPN uses two external IP addresses (one per gateway interface) and two tunnels to provide a 99.99% SLA. The Cloud Router runs BGP sessions over each tunnel, and the on-premises peer must also support BGP to exchange routes dynamically. In a real-world scenario, if the on-premises router has multiple BGP peers, you can configure different ASNs or use the same ASN with BGP multipath to load-balance traffic across both tunnels.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
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.
Designing, planning, and prototyping a GCP network — This question tests Designing, planning, and prototyping a GCP network — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create two VPN tunnels, each associated with a different Cloud VPN gateway interface — Option A is correct because HA VPN requires two tunnels, each attached to a different interface of the Cloud VPN gateway, to provide redundancy and failover. This ensures that if one tunnel or interface fails, traffic can continue through the other tunnel, maintaining connectivity to the on-premises peer.
What should I do if I get this PCNE 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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This PCNE 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 PCNE exam.
Question Discussion
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