Managing Implementation and Ensuring Solution and Operations Reliability →mediumMultiple ChoiceObjective-mapped
Google PCA Practice Question: Managing Implementation and Ensuring Solution and Operations Reliability
Your company uses HA VPN to connect on-premises to Google Cloud. You need to ensure the VPN connection meets a 99.99% SLA. Which configuration is required?
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
✓
Two Cloud VPN gateways in different regions, each with two tunnels to the same on-premises peer gateway.
HA VPN provides 99.99% SLA when configured with two Cloud VPN gateways (one per region) and two tunnels per gateway (four tunnels total) from each gateway to the on-premises peer gateway. Each gateway uses a different external IP. A single VPN gateway with two tunnels does not meet the SLA requirement because the gateway itself is a single point of failure.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
A single Cloud VPN gateway with two tunnels to the same on-premises peer gateway.
Why it's wrong here
Single gateway is a single point of failure; SLA requires two gateways.
- ✗
Two Cloud VPN gateways in the same region, each with one tunnel.
Why it's wrong here
Same region still risks zone failure; regional diversity is needed for 99.99% SLA.
- ✗
One Cloud VPN gateway with four tunnels to the same on-premises peer gateway.
Why it's wrong here
Still a single gateway; SLA requires two gateways.
- ✓
Two Cloud VPN gateways in different regions, each with two tunnels to the same on-premises peer gateway.
Why this is correct
This configuration provides redundancy and meets the 99.99% SLA.
Go deeper
Related to this question
Learn chapter
Introduction to Google Cloud Platform
Key term
VPN Gateway
A VPN Gateway is a network device or service that creates an encrypted tunnel between two or more networks over the internet, allowing secure communication.
Key term
SLA
A Service Level Agreement (SLA) is a contract between a service provider and a customer that defines the level of service expected, including metrics like uptime, response time, and penalties for non-compliance.
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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.