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 needs private connectivity between its on-premises data center and Google Cloud with consistent low latency and high throughput. The on-premises location is close to a Google Cloud point of presence that supports Dedicated Interconnect. The company expects to use more than 10 Gbps of bandwidth in the near future. Which connectivity solution 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
Dedicated Interconnect provides a direct, private physical connection between the on-premises data center and Google Cloud, offering consistent low latency and high throughput. Since the on-premises location is near a Google Cloud point of presence that supports Dedicated Interconnect and the bandwidth requirement exceeds 10 Gbps (Dedicated Interconnect supports up to 10 Gbps per circuit, with multiple circuits for higher aggregate bandwidth), this is the optimal solution.
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.
✓
Dedicated Interconnect
Why this is correct
Dedicated Interconnect provides a direct, private connection with low latency and high bandwidth (10/100 Gbps) suitable for growing needs.
Related concept
Read the scenario before looking for a memorised answer.
✗
Partner Interconnect
Why it's wrong here
Partner Interconnect is through a service provider, may not offer the same consistent low latency and high throughput as Dedicated.
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HA VPN with dynamic routing
Why it's wrong here
HA VPN still traverses the public internet, not a private connection.
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Cloud VPN with static routing
Why it's wrong here
VPN uses public internet, not private, and has higher latency/less reliability.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that Partner Interconnect is equivalent to Dedicated Interconnect for high-bandwidth needs, but the key trap is that Partner Interconnect introduces a third-party provider's network, which cannot guarantee the same consistent low latency and throughput as a direct physical connection.
Detailed technical explanation
How to think about this question
Dedicated Interconnect uses a direct physical cross-connect in a Google Cloud colocation facility (point of presence), bypassing the public internet entirely, which ensures sub-millisecond latency and deterministic throughput. Each Dedicated Interconnect circuit supports up to 10 Gbps (or 100 Gbps with newer offerings), and multiple circuits can be aggregated using Cloud Router with BGP (RFC 4271) for load balancing and redundancy. A common real-world scenario is a financial trading firm requiring consistent low latency for real-time data feeds, where even microsecond variations from a partner network are unacceptable.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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 — Dedicated Interconnect provides a direct, private physical connection between the on-premises data center and Google Cloud, offering consistent low latency and high throughput. Since the on-premises location is near a Google Cloud point of presence that supports Dedicated Interconnect and the bandwidth requirement exceeds 10 Gbps (Dedicated Interconnect supports up to 10 Gbps per circuit, with multiple circuits for higher aggregate bandwidth), this is the optimal solution.
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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