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.
Which TWO statements about VPC Network Peering are correct?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
VPC peering is supported within the same organization
Option B is correct because VPC Network Peering is designed to connect VPCs within the same organization (or across different organizations) without requiring a VPN or gateway. It allows private RFC 1918 IP communication between VPCs, and when both VPCs belong to the same organization, the peering setup is straightforward and does not involve cross-organization trust policies. This is a fundamental use case for peering in Google Cloud.
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 peering supports global load balancing with internal IPs
Why it's wrong here
Internal load balancers with global access do not work across peering without specific solutions like Private Service Connect.
✓
VPC peering is supported within the same organization
Why this is correct
Peering can be established between VPCs in the same organization.
Related concept
Read the scenario before looking for a memorised answer.
✗
VPC peering supports transitivity across multiple peerings
Why it's wrong here
Peering is not transitive; to connect more than two VPCs, a full mesh or hub is needed.
✗
VPC peering allows overlapping CIDR ranges
Why it's wrong here
Overlapping CIDR ranges are not allowed in peering.
✓
VPC peering can be used to connect VPCs in different regions
Why this is correct
Peering can connect VPCs across regions, enabling global connectivity.
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 VPC peering supports transitivity (Option C) because they confuse it with traditional router-based networking, but Google Cloud explicitly enforces non-transitive peering to maintain security and simplicity.
Detailed technical explanation
How to think about this question
Under the hood, VPC peering uses the Google Cloud internal infrastructure to exchange routes between VPCs, but it does not create a transitive routing domain—each peering is a separate, non-transitive link. This means that if VPC A is peered with VPC B, and VPC B is peered with VPC C, VPC A cannot reach VPC C unless a direct peering is established between A and C. In real-world scenarios, this non-transitivity prevents accidental routing loops and enforces explicit network segmentation, which is critical for multi-tenant environments.
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 — 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: VPC peering is supported within the same organization — Option B is correct because VPC Network Peering is designed to connect VPCs within the same organization (or across different organizations) without requiring a VPN or gateway. It allows private RFC 1918 IP communication between VPCs, and when both VPCs belong to the same organization, the peering setup is straightforward and does not involve cross-organization trust policies. This is a fundamental use case for peering in Google Cloud.
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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