Managing Implementation and Ensuring Solution and Operations Reliability →hardMultiple ChoiceObjective-mapped
Google PCA Practice Question: Managing Implementation and Ensuring Solution and Operations Reliability
A company has two on-premises data centers connected to Google Cloud via two Dedicated Interconnect connections (each 10 Gbps) from different providers. They want to achieve the highest availability for connectivity. Which configuration should they use?
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
✓
Configure two VLAN attachments on each Interconnect with separate BGP sessions
For highest availability, use two separate VLAN attachments on each Interconnect connection, with BGP sessions on each. This provides redundancy at multiple levels. Using a single VLAN attachment or single Interconnect reduces availability. Cloud Router with active/passive is less optimal than active/active.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure two VLAN attachments on each Interconnect with separate BGP sessions
Why this is correct
This provides redundancy at both the connection and VLAN level, maximizing availability.
- ✗
Configure one VLAN attachment per Interconnect and use BGP with active/passive
Why it's wrong here
Active/passive does not fully utilize both connections; active/active is better for high availability.
- ✗
Use a single VLAN attachment and rely on the second Interconnect as a backup
Why it's wrong here
A single VLAN attachment is a single point of failure.
- ✗
Configure each Interconnect with a single VLAN attachment and use Cloud Router with active/active BGP
Why it's wrong here
Active/active BGP is good, but a single VLAN attachment per Interconnect is still a single point of failure for that Interconnect.
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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
Data
Data is raw, unprocessed information, like numbers, words, or measurements, that can be stored, processed, and analyzed by computers.
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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.