- A
Multiple VLAN attachments can be created over a single physical interconnect link.
You can create multiple VLAN attachments over one Dedicated Interconnect link.
- B
VLAN attachments support both Dedicated and Partner Interconnect.
Why wrong: VLAN attachments are specific to Dedicated Interconnect; Partner Interconnect uses VLANs differently.
- C
A VLAN attachment can span multiple geographic regions.
Why wrong: VLAN attachments are regional; each attachment is in a specific region.
- D
Each VLAN attachment connects to a single Cloud Router.
A VLAN attachment is associated with one Cloud Router for BGP peering.
- E
A single VLAN attachment can connect to multiple VPCs.
Why wrong: A VLAN attachment connects to a single VPC.
Question 722 of 1,000
PCNE VLAN Attachment Practice Question
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. A key principle to apply: vLAN Attachment. 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 migrating workloads to Google Cloud and wants to use Cloud Interconnect for low-latency connectivity. They have two on-premises locations and need to connect to multiple GCP regions. Which two statements are true about using VLAN attachments with Dedicated Interconnect? (Choose TWO.)
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
✓
Multiple VLAN attachments can be created over a single physical interconnect link.
VLAN attachments are logical connections over Cloud Interconnect. With Dedicated Interconnect, a single physical link can host multiple VLAN attachments (A). Each VLAN attachment connects to a single Cloud Router and VPC in one region (D). VLAN attachments do not span regions (C is false). While VLAN attachments are also used with Partner Interconnect, the statement in B is misleading because it suggests a single attachment works for both types, which is not the case (B is false). Option E is false because a single VLAN attachment connects to one VPC only.
Key principle: VLAN Attachment
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Multiple VLAN attachments can be created over a single physical interconnect link.
- ✗
VLAN attachments support both Dedicated and Partner Interconnect.
Why it's wrong here
VLAN attachments are specific to Dedicated Interconnect; Partner Interconnect uses VLANs differently.
- ✗
A VLAN attachment can span multiple geographic regions.
Why it's wrong here
VLAN attachments are regional; each attachment is in a specific region.
- ✓
Each VLAN attachment connects to a single Cloud Router.
- ✗
A single VLAN attachment can connect to multiple VPCs.
Why it's wrong here
A VLAN attachment connects to a single 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
- VLAN Attachment
- Cloud Router
- Dedicated Interconnect
- Regional Scope
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
VLAN Attachment
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 vLAN Attachment, then practise related PCNE questions on the same topic to reinforce the concept.
- →
Designing, Planning, and Prototyping a GCP Network — study guide chapter
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Designing, Planning, and Prototyping a GCP Network practice questions
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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 — VLAN Attachment.
What is the correct answer to this question?
The correct answer is: Multiple VLAN attachments can be created over a single physical interconnect link. — VLAN attachments are logical connections over Cloud Interconnect. With Dedicated Interconnect, a single physical link can host multiple VLAN attachments (A). Each VLAN attachment connects to a single Cloud Router and VPC in one region (D). VLAN attachments do not span regions (C is false). While VLAN attachments are also used with Partner Interconnect, the statement in B is misleading because it suggests a single attachment works for both types, which is not the case (B is false). Option E is false because a single VLAN attachment connects to one VPC only.
What should I do if I get this PCNE question wrong?
Review vLAN Attachment, then practise related PCNE questions on the same topic to reinforce the concept.
What is the key concept behind this question?
VLAN Attachment
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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.
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