- A
Network Connectivity Center
NCC provides a hub-and-spoke model for connecting on-premises and VPC networks.
- B
VPC Peering
Why wrong: VPC peering is point-to-point and non-transitive, not a hub-and-spoke.
- C
Shared VPC
Why wrong: Shared VPC is for sharing subnets across projects, not for connecting multiple sites.
- D
Cloud Router
Why wrong: Cloud Router manages BGP sessions but does not provide a hub-and-spoke topology.
Question 402 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. 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 needs to connect multiple on-premises sites and multiple GCP VPCs in a hub-and-spoke topology using Google Cloud. Which service provides a centralized hub for managing such connectivity?
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 centralized hub-and-spoke topology for connecting multiple on-premises sites (via VPN, Interconnect, or third-party SD-WAN appliances) and multiple GCP VPCs. It manages routing and policy distribution across spokes, eliminating the need for individual peering or complex route tables, and supports both intra- and cross-region connectivity.
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.
- ✓
Network Connectivity Center
Why this is correct
NCC provides a hub-and-spoke model for connecting on-premises and VPC networks.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
VPC Peering
Why it's wrong here
VPC peering is point-to-point and non-transitive, not a hub-and-spoke.
- ✗
Shared VPC
Why it's wrong here
Shared VPC is for sharing subnets across projects, not for connecting multiple sites.
- ✗
Cloud Router
Why it's wrong here
Cloud Router manages BGP sessions but does not provide a hub-and-spoke topology.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse VPC Peering or Shared VPC as a hub-and-spoke solution, but neither provides centralized management or transitive routing across multiple VPCs and on-premises sites, which is the key requirement of the question.
Detailed technical explanation
How to think about this question
Network Connectivity Center uses a hub-and-spoke architecture where the hub is a regional resource that can manage up to 2000 spokes (VPCs, VPN tunnels, Interconnect attachments, or third-party appliances). It leverages dynamic routing with BGP to propagate routes between spokes, and supports policy-based routing to control traffic flow, such as forcing traffic through a firewall appliance. In a real-world scenario, NCC can simplify a multi-site, multi-VPC deployment by automatically distributing routes from on-premises networks to all connected VPCs without manual route table updates.
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.
- →
Designing, Planning, and Prototyping a GCP Network — study guide chapter
Learn the concepts, then practise the questions
- →
Designing, Planning, and Prototyping a GCP Network practice questions
Targeted practice on this topic area only
- →
All PCNE questions
1,000 questions across all exam domains
- →
Google Professional Cloud Network Engineer study guide
Full concept coverage aligned to exam objectives
- →
PCNE practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related PCNE practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Configuring Network Services practice questions
Practise PCNE questions linked to Configuring Network Services.
Implementing Hybrid Interconnectivity practice questions
Practise PCNE questions linked to Implementing Hybrid Interconnectivity.
Managing, Monitoring, and Optimising Network Operations practice questions
Practise PCNE questions linked to Managing, Monitoring, and Optimising Network Operations.
Designing, Planning, and Prototyping a GCP Network practice questions
Practise PCNE questions linked to Designing, Planning, and Prototyping a GCP Network.
Implementing VPC Instances practice questions
Practise PCNE questions linked to Implementing VPC Instances.
Implementing network security practice questions
Practise PCNE questions linked to Implementing network security.
Implementing a Virtual Private Cloud practice questions
Practise PCNE questions linked to Implementing a Virtual Private Cloud.
PCNE fundamentals practice questions
Practise PCNE questions linked to PCNE fundamentals.
PCNE scenario practice questions
Practise PCNE questions linked to PCNE scenario.
PCNE troubleshooting practice questions
Practise PCNE questions linked to PCNE troubleshooting.
Practice this exam
Start a free PCNE practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
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 centralized hub-and-spoke topology for connecting multiple on-premises sites (via VPN, Interconnect, or third-party SD-WAN appliances) and multiple GCP VPCs. It manages routing and policy distribution across spokes, eliminating the need for individual peering or complex route tables, and supports both intra- and cross-region connectivity.
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 →
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.