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 plans to connect an on-premises data center to Google Cloud with a Dedicated Interconnect. You need to ensure high availability for the connection. What is the minimum configuration required to meet a 99.99% SLA for Dedicated Interconnect?
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 Dedicated Interconnect circuits, each in a different edge availability domain, with a Cloud Router for each connection
Dedicated Interconnect requires two separate circuits (each 10 Gbps or 100 Gbps) to achieve a 99.99% SLA. A single circuit provides a 99.9% SLA, and Google Cloud recommends using two circuits in different edge availability domains. Cloud Router alone does not provide redundancy without multiple VLAN attachments and circuits.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Two Dedicated Interconnect circuits, each in a different edge availability domain, with a Cloud Router for each connection
Why this is correct
Two circuits with separate edge domains ensure 99.99% SLA.
- ✗
A single Dedicated Interconnect circuit with a Cloud Router configured for BGP advertisements
Why it's wrong here
A single circuit only provides 99.9% SLA.
- ✗
One Dedicated Interconnect circuit and one Partner Interconnect connection as a backup
Why it's wrong here
Partner Interconnect has a different SLA (99.9%) and does not combine to achieve 99.99%.
- ✗
One Dedicated Interconnect circuit with two VLAN attachments on the same circuit
Why it's wrong here
VLAN attachments on the same circuit do not provide circuit-level redundancy.
Visual reference
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Related to this question
Learn chapter
Introduction to Google Cloud Platform
Key term
Cloud Router
A cloud router is a virtual networking device in a cloud environment that manages traffic between different virtual networks and connects them to on-premises networks using dynamic routing protocols.
Key term
Dedicated Interconnect
A Dedicated Interconnect is a direct, private physical connection between your on-premises network and a cloud provider's network, bypassing the public internet for faster, more reliable, and more secure data transfer.
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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.