The answer is Dedicated Interconnect and Partner Interconnect. These two options provide the high bandwidth low latency interconnect options required for real-time data replication, with Dedicated Interconnect offering direct physical connections up to 10 Gbps per circuit and Partner Interconnect delivering equivalent performance through a service provider’s network while supporting burstable traffic at a lower cost. On the Google Professional Cloud Network Engineer exam, this question tests your understanding of hybrid connectivity choices, specifically how to balance performance requirements with cost efficiency—a common trap is assuming only Dedicated Interconnect meets high-bandwidth needs, but Partner Interconnect is equally valid for burstable workloads. Remember that Dedicated Interconnect is ideal for consistent, high-throughput demands, while Partner Interconnect offers flexibility without owning physical infrastructure. A useful memory tip: “Direct for dedicated, Partner for burstable—both hit 10 Gbps and low latency.”
PCNE Implementing hybrid interconnectivity Practice Question
This PCNE practice question tests your understanding of implementing hybrid interconnectivity. 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 is planning to connect their on-premises data center to Google Cloud. They require high bandwidth (10 Gbps) and low latency for real-time data replication. They also want a cost-effective solution that supports burstable traffic. Which TWO connectivity options should they consider? (Choose TWO.)
Why wrong: Classic VPN is deprecated and also limited in throughput; not recommended for high bandwidth.
B
Cloud VPN (IPsec VPN)
Why wrong: Cloud VPN maxes out at 3 Gbps per tunnel; insufficient for 10 Gbps requirement.
C
Partner Interconnect
Offers flexible bandwidth up to 10 Gbps or more via supported partners, with pay-as-you-go pricing suitable for burstable traffic.
D
Dedicated Interconnect
Provides dedicated 10 Gbps or 100 Gbps connections with low latency, fully utilized for real-time replication.
E
Direct Peering
Why wrong: Direct Peering is not a managed service and typically limited to 10 Gbps or less, but lacks SLA and is not recommended for production workloads requiring high throughput.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Partner Interconnect
Partner Interconnect (Option C) is correct because it provides dedicated, high-bandwidth connections (up to 10 Gbps per circuit) with low latency, suitable for real-time data replication, and supports burstable traffic through a service provider's network, offering a cost-effective alternative to Dedicated Interconnect for enterprises that need flexibility without full physical infrastructure ownership.
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.
✗
Classic VPN (route-based VPN)
Why it's wrong here
Classic VPN is deprecated and also limited in throughput; not recommended for high bandwidth.
✗
Cloud VPN (IPsec VPN)
Why it's wrong here
Cloud VPN maxes out at 3 Gbps per tunnel; insufficient for 10 Gbps requirement.
✓
Partner Interconnect
Why this is correct
Offers flexible bandwidth up to 10 Gbps or more via supported partners, with pay-as-you-go pricing suitable for burstable traffic.
Related concept
Read the scenario before looking for a memorised answer.
✓
Dedicated Interconnect
Why this is correct
Provides dedicated 10 Gbps or 100 Gbps connections with low latency, fully utilized for real-time replication.
Related concept
Read the scenario before looking for a memorised answer.
✗
Direct Peering
Why it's wrong here
Direct Peering is not a managed service and typically limited to 10 Gbps or less, but lacks SLA and is not recommended for production workloads requiring high throughput.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that Cloud VPN or Classic VPN can meet high-bandwidth, low-latency requirements because they are 'VPNs,' but the trap is that these options lack the dedicated physical infrastructure and SLAs needed for real-time replication, whereas Interconnect options provide guaranteed performance.
Detailed technical explanation
How to think about this question
Dedicated Interconnect provides physical cross-connects in colocation facilities, offering 10 Gbps or 100 Gbps circuits with a 99.99% uptime SLA, while Partner Interconnect uses a service provider's MPLS or Layer 2 network to deliver similar performance with burstable billing models. Under the hood, both use BGP for dynamic routing and VLAN attachments to Virtual Private Cloud (VPC) networks, but Partner Interconnect allows for lower commitment terms (e.g., monthly) versus Dedicated Interconnect's 1-year or 3-year commitments, making it ideal for variable traffic patterns.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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: Partner Interconnect — Partner Interconnect (Option C) is correct because it provides dedicated, high-bandwidth connections (up to 10 Gbps per circuit) with low latency, suitable for real-time data replication, and supports burstable traffic through a service provider's network, offering a cost-effective alternative to Dedicated Interconnect for enterprises that need flexibility without full physical infrastructure ownership.
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 →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.