The answer is Dedicated Interconnect with two connections to different meet-me rooms. This configuration achieves the highest availability SLA because it eliminates single points of failure at both the physical cabling layer and the facility level, ensuring that if one meet-me room experiences an outage, the redundant connection in a separate facility maintains your 10 Gbps dedicated, low-latency link to GCP. On the Google Professional Cloud Network Engineer exam, this scenario tests your understanding of how to meet the 99.99% SLA requirement by designing for physical diversity rather than just adding bandwidth; a common trap is choosing two connections within the same meet-me room, which still leaves you vulnerable to a facility-wide failure. Remember the key principle: for the highest SLA, you need both geographic and facility diversity, not just multiple circuits. A useful memory tip is “two rooms, no doom”—two distinct meet-me rooms eliminate the single-facility point of failure.
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. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
A company needs a dedicated, low-latency connection from their on-premises data center to GCP with a 10 Gbps capacity. They require the highest availability and service level agreement (SLA). Which connectivity option should they choose?
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 two connections to different meet-me rooms.
Dedicated Interconnect provides a direct, private connection between the on-premises data center and GCP with 10 Gbps capacity. By using two connections to different meet-me rooms, the company achieves the highest availability and meets the 99.99% SLA, as this eliminates single points of failure at the physical layer and within a single facility.
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.
✗
Carrier Peering using Equinix or other carrier.
Why it's wrong here
Carrier peering provides access to Google services, not GCP resources like VPC.
✓
Dedicated Interconnect with two connections to different meet-me rooms.
Why this is correct
Dedicated Interconnect provides dedicated, low-latency connection with high SLA.
Related concept
Read the scenario before looking for a memorised answer.
✗
Partner Interconnect with two VLAN attachments from different providers.
Why it's wrong here
Partner Interconnect has lower SLA and relies on partner network.
✗
Cloud VPN with two tunnels from different VPN gateways.
Why it's wrong here
VPN runs over internet, not dedicated; higher latency and lower SLA.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that Partner Interconnect can match the SLA of Dedicated Interconnect, but the key trap is that Partner Interconnect's SLA is limited to the partner's network and does not cover the entire path from on-premises to GCP.
Detailed technical explanation
How to think about this question
Dedicated Interconnect uses IEEE 802.1Q VLAN tagging to isolate traffic over a single physical circuit, and the two connections to different meet-me rooms must be in different edge availability domains (EADs) to qualify for the 99.99% SLA. Under the hood, each connection is a Layer 2 link that requires a BGP session to exchange routes, and the company must configure a Cloud Router with BGP MED or AS path prepending for traffic steering. In a real-world scenario, if one meet-me room experiences a power outage, the second connection in a different facility ensures zero downtime.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
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: Dedicated Interconnect with two connections to different meet-me rooms. — Dedicated Interconnect provides a direct, private connection between the on-premises data center and GCP with 10 Gbps capacity. By using two connections to different meet-me rooms, the company achieves the highest availability and meets the 99.99% SLA, as this eliminates single points of failure at the physical layer and within a single facility.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company needs to connect on-premises to GCP using Dedicated Interconnect with a 10 Gbps link, and they require high availability. They plan to use a single VLAN attachment. What is the best design?
medium
✓ A.Deploy two interconnects with one VLAN attachment each.
B.Deploy one interconnect with one VLAN attachment and a VPN as backup.
C.Deploy one interconnect with one VLAN attachment and use static routing.
D.Deploy two VLAN attachments on the same interconnect with separate BGP sessions.
Why A: For high availability with Dedicated Interconnect, you need two separate physical connections (interconnects) to avoid a single point of failure. Each interconnect must have its own VLAN attachment and BGP session to ensure that if one link fails, traffic can still flow over the other. A single VLAN attachment cannot provide redundancy because it is tied to one physical interconnect.
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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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