Google PCA Practice Question: Managing Implementation and Ensuring Solution and Operations Reliability
A company wants to connect their on-premises network to Google Cloud with a 99.99% SLA using encrypted tunnels over the public internet. Which connectivity solution should they choose?
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
✓
HA VPN
HA VPN provides a 99.99% SLA when configured with two VPN gateways and four tunnels over the public internet. Dedicated Interconnect is a private connection with higher bandwidth but not over the public internet. Partner Interconnect uses a partner's network, not the public internet. Standard VPN does not offer a 99.99% SLA.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
HA VPN
Why this is correct
HA VPN provides two tunnels across two interfaces, delivering a 99.99% availability SLA when configured with two external IP addresses. It encrypts traffic over the public internet, matching both the SLA and encryption constraints in the stem.
- ✗
Standard VPN with single tunnel
Why it's wrong here
A single standard VPN tunnel provides a 99.9% availability SLA, not 99.99%, and offers no redundancy if the tunnel fails. It is tempting because it is the simplest encrypted-over-internet option, but the SLA target demands HA VPN with two tunnels.
- ✗
Partner Interconnect
Why it's wrong here
Partner Interconnect also uses a private circuit through a service provider rather than encrypted tunnels over the public internet. It is tempting for reaching locations Dedicated Interconnect cannot serve, but it fails the stem's public-internet encryption requirement.
- ✗
Dedicated Interconnect
Why it's wrong here
Dedicated Interconnect is a private physical circuit, not encrypted tunnels over the public internet, and its SLA is 99.9% for a single connection. It is tempting because it delivers high, consistent bandwidth, but the stem explicitly requires internet-based encrypted tunnels.
Go deeper
Related to this question
Learn chapter
Virtual Private Cloud (VPC) Networking Basics
Key term
Partner Interconnect
Partner Interconnect is a Google Cloud service that allows you to connect your on-premises network to Google Cloud through a supported third-party service provider.
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.