Quick Answer
The answer is Cloud VPN, Cloud Router, and Cloud Interconnect. These three components form the backbone of a typical cloud hybrid networking architecture because Cloud VPN or Cloud Interconnect establish the secure, dedicated connectivity between your on-premises network and a Google Cloud VPC, while Cloud Router dynamically exchanges routes using BGP, automatically learning and propagating network changes without requiring static route management. On the Google Professional Cloud Network Engineer exam, this concept often appears in scenario-based questions where you must select the correct combination for hybrid connectivity, with a common trap being the omission of Cloud Router in favor of static routes or confusing Dedicated Interconnect with Partner Interconnect. A reliable memory tip is to think of the “three C’s”: Connectivity (VPN or Interconnect), Control (Cloud Router with BGP), and Cloud (the VPC on GCP).
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 THREE components are part of a typical Cloud Hybrid Networking architecture?
VPC
Why wrong: Virtual Private Cloud is the network environment, not a component for hybrid connectivity.
Cloud Router
Manages BGP sessions for dynamic routing between on-prem and GCP.
Cloud Interconnect
Provides high-bandwidth, low-latency dedicated connections.
Cloud CDN
Why wrong: Content delivery network, not for hybrid connectivity.
Cloud VPN
Used for encrypted connections to on-prem via internet.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Cloud Router
Cloud Router is a core component of Cloud Hybrid Networking because it enables dynamic route exchange between a GCP VPC and an on-premises network using BGP. It works with Cloud VPN or Cloud Interconnect to automatically learn and propagate routes, eliminating the need for static route management.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
VPC
Why it's wrong here
Virtual Private Cloud is the network environment, not a component for hybrid connectivity.
Cloud Router
Why this is correct
Manages BGP sessions for dynamic routing between on-prem and GCP.
Related concept
Read the scenario before looking for a memorised answer.
Cloud Interconnect
Why this is correct
Provides high-bandwidth, low-latency dedicated connections.
Related concept
Read the scenario before looking for a memorised answer.
Cloud CDN
Why it's wrong here
Content delivery network, not for hybrid connectivity.
Cloud VPN
Why this is correct
Used for encrypted connections to on-prem via internet.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Google Cloud often tests the misconception that a VPC itself is a hybrid networking component, but candidates must remember that hybrid connectivity requires dedicated services like Cloud VPN, Cloud Interconnect, or Cloud Router to bridge the VPC with external networks.
Detailed technical explanation
Cloud Router uses eBGP (External Border Gateway Protocol) to exchange routes with on-premises routers, supporting features like custom route advertisements and BGP MED (Multi-Exit Discriminator) for path selection. In a real-world scenario, if you have multiple Cloud VPN tunnels for redundancy, Cloud Router can manage BGP sessions across all tunnels, automatically failing over traffic if one tunnel goes down.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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Designing, planning, and prototyping a GCP network — study guide chapter
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FAQ
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..
The correct answer is: Cloud Router — Cloud Router is a core component of Cloud Hybrid Networking because it enables dynamic route exchange between a GCP VPC and an on-premises network using BGP. It works with Cloud VPN or Cloud Interconnect to automatically learn and propagate routes, eliminating the need for static route management.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 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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