The answer is Dedicated Interconnect with static routing. This is the correct choice because the on-premises router only supports static routing and cannot run BGP, so a Dedicated Interconnect configured for static routing provides the necessary private, low-latency connection to a single Google Cloud VPC without requiring dynamic protocol support. On the Google Professional Cloud Network Engineer exam, this scenario tests your understanding of when to use static routing over BGP—a common trap is assuming Partner Interconnect or VPN would work, but those typically rely on BGP for dynamic route exchange, while Dedicated Interconnect explicitly supports static routing for legacy or constrained environments. Remember that Dedicated Interconnect is the only Google Cloud private connectivity option that natively supports static routing without BGP, making it the go-to solution when your on-premises gear lacks dynamic routing capabilities. Memory tip: “Dedicated for static, Partner for BGP” helps you quickly recall that Dedicated Interconnect is the correct answer when the router is static-only.
PCNE Implementing hybrid interconnectivity Practice Question
This PCNE practice question tests your understanding of implementing hybrid interconnectivity. 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.
An organization has an on-premises router that only supports static routing and does not support BGP. They need private connectivity to a single Google Cloud VPC. Which solution should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Dedicated Interconnect with static routing
Dedicated Interconnect supports static routing, which is required because the on-premises router does not support BGP. This solution provides direct, private connectivity to a single Google Cloud VPC without relying on dynamic routing protocols, making it the correct choice for this scenario.
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.
✗
Cloud VPN with dynamic routing (BGP)
Why it's wrong here
On-prem router does not support BGP, so cannot use dynamic routing.
✗
Ha VPN with policy-based routing
Why it's wrong here
HA VPN requires BGP; policy-based is not available for HA VPN.
✓
Dedicated Interconnect with static routing
Why this is correct
Dedicated Interconnect supports configuring static routes for the VLAN attachment without needing BGP.
Related concept
Read the scenario before looking for a memorised answer.
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that Cloud VPN or Partner Interconnect can operate without BGP, but in Google Cloud, all VPN and Partner Interconnect solutions require BGP for dynamic routing, while Dedicated Interconnect uniquely supports static routing.
Detailed technical explanation
How to think about this question
Dedicated Interconnect uses VLAN attachments (VLANs) to connect to a Google Cloud VPC, and routing can be configured statically via custom route advertisements or by using the VLAN attachment's associated Cloud Router with BGP disabled. In real-world scenarios, organizations with legacy routers that lack BGP support often choose Dedicated Interconnect with static routes, but they must manually manage route updates and failover, which can be operationally complex.
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.
Implementing hybrid interconnectivity — This question tests Implementing hybrid interconnectivity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Dedicated Interconnect with static routing — Dedicated Interconnect supports static routing, which is required because the on-premises router does not support BGP. This solution provides direct, private connectivity to a single Google Cloud VPC without relying on dynamic routing protocols, making it the correct choice for this scenario.
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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Question Discussion
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