- A
VPC Network Peering
Why wrong: Peering doesn't provide hub-and-spoke; would require full mesh.
- B
Shared VPC
Why wrong: Shared VPC centralizes subnets but doesn't connect different VPCs.
- C
Network Connectivity Center
NCC enables hub-and-spoke topology for VPCs and on-prem.
- D
Cloud VPN
Why wrong: VPN connects external networks, not multiple VPCs.
Question 360 of 1,000
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. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 needs to connect multiple VPCs in different projects and regions to a common hub VPC for centralized inspection. They want to avoid complex mesh peering configurations. Which service should they use?
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
✓
Network Connectivity Center
Network Connectivity Center (NCC) is the correct choice because it provides a hub-and-spoke topology that connects multiple VPCs across projects and regions to a central hub VPC for centralized inspection, without requiring complex mesh peering. NCC uses a software-defined networking (SDN) controller to manage inter-VPC connectivity and routing, enabling traffic to flow through the hub VPC for inspection appliances like firewalls or IDS/IPS.
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.
- ✗
VPC Network Peering
Why it's wrong here
Peering doesn't provide hub-and-spoke; would require full mesh.
- ✗
Shared VPC
Why it's wrong here
Shared VPC centralizes subnets but doesn't connect different VPCs.
- ✓
Network Connectivity Center
Why this is correct
NCC enables hub-and-spoke topology for VPCs and on-prem.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Cloud VPN
Why it's wrong here
VPN connects external networks, not multiple VPCs.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates often confuse VPC Network Peering with hub-and-spoke capabilities, but Google Cloud VPC Network Peering does not natively support transitive routing or centralized inspection without complex custom routes and additional appliances.
Detailed technical explanation
How to think about this question
Network Connectivity Center leverages the global VPC routing infrastructure and supports dynamic routing via BGP, allowing spokes (VPCs) to exchange routes with the hub VPC through NCC spokes (e.g., VLAN attachments or VPN tunnels). Under the hood, NCC uses a centralized router appliance that can enforce traffic steering policies, such as forcing all inter-spoke traffic through the hub for inspection, which is not possible with simple VPC peering due to its symmetric routing model. In real-world scenarios, NCC is ideal for enterprises with multi-region, multi-project deployments requiring consistent security policies, as it avoids the 25-VPC peering limit per VPC and reduces operational overhead.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
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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Designing, Planning, and Prototyping a GCP Network — study guide chapter
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FAQ
Questions learners often ask
What does this PCNE question test?
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: Network Connectivity Center — Network Connectivity Center (NCC) is the correct choice because it provides a hub-and-spoke topology that connects multiple VPCs across projects and regions to a central hub VPC for centralized inspection, without requiring complex mesh peering. NCC uses a software-defined networking (SDN) controller to manage inter-VPC connectivity and routing, enabling traffic to flow through the hub VPC for inspection appliances like firewalls or IDS/IPS.
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.
About these practice questions
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 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.
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