- A
System-generated routes
Created automatically for subnets and default internet gateway.
- B
Dynamic routes learned through BGP
Learned from on-premises routers via Cloud VPN or Interconnect.
- C
VPN tunnel routes
Why wrong: Not a route type; VPN uses static or dynamic routes.
- D
Custom static routes
Manually created by administrators.
- E
Peering routes
Why wrong: Peering routes are system-generated routes from a peered VPC.
Question 176 of 1,000
Valid Google Cloud VPC Route Types
This PCNE practice question tests your understanding of implementing a virtual private cloud. 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. A key principle to apply: system-generated routes. 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 is designing a VPC routing strategy. Which three are valid route types in Google Cloud VPC? (Choose three.)
Quick Answer
The answer is custom static routes, along with system-generated routes and dynamic routes learned through BGP. These three are the valid Google Cloud VPC route types because Google Cloud’s routing architecture classifies all routes into these categories: system-generated routes are created automatically for subnets and default internet gateways, custom static routes are manually defined by administrators for specific traffic steering, and dynamic routes are propagated via Cloud Router using BGP sessions. On the Google Professional Cloud Network Engineer exam, this question tests your understanding of the fundamental route classification, often appearing as a multiple-select trap where options like “VPN tunnel routes” or “peering routes” are listed as distractors—remember that VPN tunnels use either static or BGP routes, and peering routes are simply system-generated routes imported from a peered VPC. A useful memory tip is to think of the three pillars: Auto, Manual, and Learned—system-generated, custom static, and dynamic.
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
✓
System-generated routes
Options A, B, and D are correct. System-generated routes are created automatically for subnet ranges and default internet gateway. Custom static routes are manually defined by administrators. Dynamic routes are learned through BGP from on-premises or other networks. Option C is incorrect because 'VPN tunnel routes' is not a distinct route type; VPN tunnels utilize either static routes or BGP for route advertisement. Option E is incorrect because 'Peering routes' are not a separate type; they are system-generated routes imported from peered VPCs.
Key principle: System-generated routes
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
System-generated routes
Why this is correct
Created automatically for subnets and default internet gateway.
Related concept
System-generated routes
- ✓
Dynamic routes learned through BGP
Why this is correct
Learned from on-premises routers via Cloud VPN or Interconnect.
Related concept
System-generated routes
- ✗
VPN tunnel routes
Why it's wrong here
Not a route type; VPN uses static or dynamic routes.
- ✓
Custom static routes
Why this is correct
Manually created by administrators.
Related concept
System-generated routes
- ✗
Peering routes
Why it's wrong here
Peering routes are system-generated routes from a peered VPC.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- System-generated routes
- Custom static routes
- Dynamic routes
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
System-generated routes
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.
Visual reference
What to study next
Got this wrong? Here's your next step.
Review system-generated routes, then practise related PCNE questions on the same topic to reinforce the concept.
- →
Implementing a Virtual Private Cloud — study guide chapter
Learn the concepts, then practise the questions
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Implementing a Virtual Private Cloud practice questions
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FAQ
Questions learners often ask
What does this PCNE question test?
Implementing a Virtual Private Cloud — This question tests Implementing a Virtual Private Cloud — System-generated routes.
What is the correct answer to this question?
The correct answer is: System-generated routes — Options A, B, and D are correct. System-generated routes are created automatically for subnet ranges and default internet gateway. Custom static routes are manually defined by administrators. Dynamic routes are learned through BGP from on-premises or other networks. Option C is incorrect because 'VPN tunnel routes' is not a distinct route type; VPN tunnels utilize either static routes or BGP for route advertisement. Option E is incorrect because 'Peering routes' are not a separate type; they are system-generated routes imported from peered VPCs.
What should I do if I get this PCNE question wrong?
Review system-generated routes, then practise related PCNE questions on the same topic to reinforce the concept.
What is the key concept behind this question?
System-generated routes
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Last reviewed: Jun 24, 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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