Google PCA Practice Question: Managing Implementation and Ensuring Solution and Operations Reliability
An organization wants to connect their on-premises data center to Google Cloud with a dedicated 10 Gbps link. They require high availability and have budget for two physically diverse connections. Which solution should they choose?
⚠ Common exam trap
PCA often tests whether candidates conflate 'high availability' with 'backup' and pick a single Dedicated Interconnect plus VPN, so the trap is missing that true HA for Dedicated Interconnect requires two physically diverse dedicated connections.
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
✓
Provision two Cloud Dedicated Interconnect connections from diverse peering points.
Two Dedicated Interconnect connections from diverse peering points provide the required 10 Gbps dedicated bandwidth with high availability, since each connection is physically separate and can fail independently. This is the standard Google-recommended topology for production Dedicated Interconnect with redundancy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use Partner Interconnect with a single 10 Gbps connection.
Why it's wrong here
One Partner Interconnect attachment provides no redundancy, so a provider or circuit failure severs the data centre link. It is tempting because Partner Interconnect offers 10 Gbps without direct peering facilities, but the stem explicitly requires two physically diverse connections.
- ✗
Configure a single Dedicated Interconnect connection and use Cloud VPN as backup.
Why it's wrong here
A single Dedicated Interconnect circuit plus Cloud VPN backup leaves the 10 Gbps path as a single point of failure, since VPN cannot carry the dedicated bandwidth. It is tempting because VPN backup is a valid resilience pattern, but the stem's budget and diversity requirement demand two Interconnect connections.
- ✓
Provision two Cloud Dedicated Interconnect connections from diverse peering points.
Why this is correct
Two Dedicated Interconnect connections terminating at diverse peering points provide physically separate 10 Gbps paths, so a single facility or link failure does not drop connectivity. This satisfies both the dedicated bandwidth and high availability constraints.
- ✗
Deploy a single HA VPN tunnel.
Why it's wrong here
A single HA VPN tunnel provides only one encrypted IPsec path, so it cannot deliver the two physically diverse 10 Gbps links required. HA VPN is tempting because it offers redundancy within a single tunnel pair, but that redundancy is logical, not physical, and its throughput ceiling falls short of dedicated interconnect capacity.
Go deeper
Related to this question
Learn chapter
Cloud SQL and Managed Data Stores
Key term
Organization
An Organization is a top-level container in Google Cloud that represents your company or entities and serves as the root node for all your cloud resources, policies, and access control.
Key term
Data
Data is raw, unprocessed information, like numbers, words, or measurements, that can be stored, processed, and analyzed by computers.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Google Cloud exam blueprint
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.