easyMultiple Choice
Google PCA Practice Question: Connect their on-premises network to Google Cloud…
A company wants to connect their on-premises network to Google Cloud with a dedicated, high-bandwidth, low-latency connection that supports Service Level Agreements (SLAs) up to 99.99% availability. Which connectivity option should they choose?
⚠ Common exam trap
Many candidates confuse Partner Interconnect with Dedicated Interconnect, overlooking that Partner Interconnect does not offer a direct physical connection and has a lower SLA (99.9% vs. 99.99%), which fails the requirement for a dedicated, high-bandwidth, low-latency link with the highest availability guarantee.
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
✓
Dedicated Interconnect
Dedicated Interconnect provides a direct, private physical connection between your on-premises network and Google Cloud, offering high bandwidth (up to 100 Gbps per link), low latency, and support for SLAs up to 99.99% availability. This option meets the requirement for a dedicated, high-bandwidth, low-latency connection with the highest SLA, unlike VPN-based or partner-mediated solutions.
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
Why it's wrong here
Classic VPN runs over the public internet with no dedicated capacity and offers no SLA approaching 99.99%, so it cannot meet the bandwidth, latency or availability requirements. It is tempting as a quick encrypted tunnel, and would be correct for low-cost, lower-bandwidth connectivity where an SLA is not required.
- ✗
Partner Interconnect
Why it's wrong here
Partner Interconnect provides dedicated capacity through a service provider, but its SLA tops out at 99.99% only for specific configurations and it cannot guarantee the requested bandwidth and latency as directly as Dedicated Interconnect. It suits locations lacking a colocation facility.
- ✓
Dedicated Interconnect
Why this is correct
Dedicated Interconnect provides a private physical link between on-premises and Google Cloud, delivering high bandwidth, low latency and an SLA of up to 99.99%. This satisfies the dedicated, SLA-backed requirement, unlike Partner Interconnect or VPN options.
- ✗
Cloud VPN (IPsec VPN)
Why it's wrong here
Cloud VPN tunnels traverse the public internet, so bandwidth and latency vary and its SLA falls short of 99.99%, failing the dedicated high-bandwidth requirement. It is tempting because it is quick to deploy, and would be correct for encrypted connectivity where dedicated capacity and maximum availability are not mandated.
Go deeper
Related to this question
Learn chapter
IAM Policies, Service Accounts, and Auditing
Key term
Latency
Latency is the time delay between a request being sent over a network and the response being received, often measured in milliseconds.
Key term
Bandwidth
Bandwidth is the maximum amount of data that can travel over a network connection in a given amount of time, usually measured in bits per second.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCA 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 PCA exam.