Google Cloud Architect Exam Prep 2026 Updated
Practice Questions, Comprehensive Cloud Architecture
Review, Detailed Rationales, Verified Answers &
Complete Success Workbook
INTRODUCTION
This comprehensive study guide contains 100 practice questions of the Google
Cloud Professional Cloud Architect (PCA) certification examination — updated
for the March 2026 exam changes.
Exam Overview
Updated Case Studies (2026)
The 2026 exam features new case studies:
• Altostrat Media — Media and entertainment workload
• Cymbal Retail — E-commerce and retail analytics
• EHR Healthcare — Healthcare and compliance workloads
• KnightMotives Automotive — Connected vehicle and IoT
Six Exam Domains (March 2026 Update)
Domain Weight
1.0 Designing and Planning
a Cloud Solution ~24%
Architecture
2.0 Managing and
Provisioning Solution ~15%
Infrastructure
,Domain Weight
3.0 Designing for Security
~18%
and Compliance
4.0 Analyzing and
Optimizing Technical and ~16%
Business Processes
5.0 Managing
~13%
Implementation
6.0 Ensuring Solution and
~14%
Operations Reliability
What's New in the March 2026 Update
The PCA exam was significantly updated in March 2026 with the following key
changes:
• Generative AI Integration — New questions on Vertex
AI, Gemini services, and AI workload deployment
• Agentic Workflows — Scenarios requiring design of autonomous agents
and multi-step orchestration
• AI/ML Expansion — Two new sections (2.4, 2.5) focused on Vertex AI,
including AutoML, custom training, and model deployment
• AI Workload Security — New emphasis on securing AI workloads with
proper data governance
• New Case Studies — Altostrat Media, KnightMotives Automotive, EHR
Healthcare, Cymbal
• Sustainability & Cost Optimization — Increased emphasis on Well-
Architected Framework pillars
• Domain Reorganization — Exam domains restructured with new
weightings
,DOMAIN 1: DESIGNING AND PLANNING A CLOUD SOLUTION
ARCHITECTURE (~24%)
Questions 1–24
Question 1
Your company is migrating a legacy monolithic application to Google Cloud. The
application has unpredictable traffic patterns with occasional spikes. The
development team wants to minimize operational overhead while maintaining the
ability to scale independently. Which compute service should you recommend?
A) Compute Engine with managed instance groups
B) Google Kubernetes Engine (GKE) Autopilot
C) Cloud Run
D) Compute Engine with custom machine types
Answer: C) Cloud Run
Rationale: Cloud Run is a fully managed serverless platform that automatically
scales from zero based on traffic, requires no cluster management, and charges
only for resources consumed during request processing. This minimizes
operational overhead while handling unpredictable traffic spikes. GKE Autopilot
(B) reduces management overhead compared to standard GKE but still requires
cluster and container orchestration knowledge. Compute Engine (A, D) would
require more operational management and wouldn't auto-scale as seamlessly.
Question 2
Your organization is planning a multi-region deployment for a global e-commerce
platform. The application must maintain 99.99% availability and withstand the
failure of an entire region. Which architectural approach should you recommend?
A) Single region with multiple availability zones
B) Active-passive with regional failover using Cloud DNS
C) Active-active with global load balancing and regional redundancy
D) Single region with regional persistent disk replication
, Answer: C) Active-active with global load balancing and regional redundancy
Rationale: Active-active with global load balancing provides the highest
availability by serving traffic from multiple regions simultaneously. Cloud Load
Balancing can distribute traffic across regions with health checks, and if one region
fails, traffic automatically routes to healthy regions. Single region (A, D) cannot
withstand region failure. Active-passive (B) would have a higher RTO.
Question 3
Your company needs to migrate 50 TB of on-premises data to Google Cloud
Storage. The migration must complete within 30 days, and your network
bandwidth is limited to 1 Gbps. Which migration approach should you
recommend?
A) gsutil cp with parallel composite uploads
B) Storage Transfer Service
C) Transfer Appliance
D) Cloud Storage with multi-threaded uploads
Answer: C) Transfer Appliance
Rationale: Transfer Appliance is a physical device that can transfer up to 1 PB of
data, bypassing network bandwidth limitations. At 1 Gbps, transferring 50 TB
would take approximately 5-6 days at theoretical maximum, but in practice with
overhead, it could exceed the 30-day window. Transfer Appliance provides a more
reliable and faster option for large data migrations.
Question 4
You are designing a cloud architecture for a healthcare application that must
comply with HIPAA and store patient data in the United States only. Which GCP
configuration should you recommend?
A) Multi-region storage bucket with data residency in US
B) Regional storage in us-central1 with organization policy restricting resource
locations
C) Global storage with data residency in US
D) Multi-region storage with default encryption
Practice Questions, Comprehensive Cloud Architecture
Review, Detailed Rationales, Verified Answers &
Complete Success Workbook
INTRODUCTION
This comprehensive study guide contains 100 practice questions of the Google
Cloud Professional Cloud Architect (PCA) certification examination — updated
for the March 2026 exam changes.
Exam Overview
Updated Case Studies (2026)
The 2026 exam features new case studies:
• Altostrat Media — Media and entertainment workload
• Cymbal Retail — E-commerce and retail analytics
• EHR Healthcare — Healthcare and compliance workloads
• KnightMotives Automotive — Connected vehicle and IoT
Six Exam Domains (March 2026 Update)
Domain Weight
1.0 Designing and Planning
a Cloud Solution ~24%
Architecture
2.0 Managing and
Provisioning Solution ~15%
Infrastructure
,Domain Weight
3.0 Designing for Security
~18%
and Compliance
4.0 Analyzing and
Optimizing Technical and ~16%
Business Processes
5.0 Managing
~13%
Implementation
6.0 Ensuring Solution and
~14%
Operations Reliability
What's New in the March 2026 Update
The PCA exam was significantly updated in March 2026 with the following key
changes:
• Generative AI Integration — New questions on Vertex
AI, Gemini services, and AI workload deployment
• Agentic Workflows — Scenarios requiring design of autonomous agents
and multi-step orchestration
• AI/ML Expansion — Two new sections (2.4, 2.5) focused on Vertex AI,
including AutoML, custom training, and model deployment
• AI Workload Security — New emphasis on securing AI workloads with
proper data governance
• New Case Studies — Altostrat Media, KnightMotives Automotive, EHR
Healthcare, Cymbal
• Sustainability & Cost Optimization — Increased emphasis on Well-
Architected Framework pillars
• Domain Reorganization — Exam domains restructured with new
weightings
,DOMAIN 1: DESIGNING AND PLANNING A CLOUD SOLUTION
ARCHITECTURE (~24%)
Questions 1–24
Question 1
Your company is migrating a legacy monolithic application to Google Cloud. The
application has unpredictable traffic patterns with occasional spikes. The
development team wants to minimize operational overhead while maintaining the
ability to scale independently. Which compute service should you recommend?
A) Compute Engine with managed instance groups
B) Google Kubernetes Engine (GKE) Autopilot
C) Cloud Run
D) Compute Engine with custom machine types
Answer: C) Cloud Run
Rationale: Cloud Run is a fully managed serverless platform that automatically
scales from zero based on traffic, requires no cluster management, and charges
only for resources consumed during request processing. This minimizes
operational overhead while handling unpredictable traffic spikes. GKE Autopilot
(B) reduces management overhead compared to standard GKE but still requires
cluster and container orchestration knowledge. Compute Engine (A, D) would
require more operational management and wouldn't auto-scale as seamlessly.
Question 2
Your organization is planning a multi-region deployment for a global e-commerce
platform. The application must maintain 99.99% availability and withstand the
failure of an entire region. Which architectural approach should you recommend?
A) Single region with multiple availability zones
B) Active-passive with regional failover using Cloud DNS
C) Active-active with global load balancing and regional redundancy
D) Single region with regional persistent disk replication
, Answer: C) Active-active with global load balancing and regional redundancy
Rationale: Active-active with global load balancing provides the highest
availability by serving traffic from multiple regions simultaneously. Cloud Load
Balancing can distribute traffic across regions with health checks, and if one region
fails, traffic automatically routes to healthy regions. Single region (A, D) cannot
withstand region failure. Active-passive (B) would have a higher RTO.
Question 3
Your company needs to migrate 50 TB of on-premises data to Google Cloud
Storage. The migration must complete within 30 days, and your network
bandwidth is limited to 1 Gbps. Which migration approach should you
recommend?
A) gsutil cp with parallel composite uploads
B) Storage Transfer Service
C) Transfer Appliance
D) Cloud Storage with multi-threaded uploads
Answer: C) Transfer Appliance
Rationale: Transfer Appliance is a physical device that can transfer up to 1 PB of
data, bypassing network bandwidth limitations. At 1 Gbps, transferring 50 TB
would take approximately 5-6 days at theoretical maximum, but in practice with
overhead, it could exceed the 30-day window. Transfer Appliance provides a more
reliable and faster option for large data migrations.
Question 4
You are designing a cloud architecture for a healthcare application that must
comply with HIPAA and store patient data in the United States only. Which GCP
configuration should you recommend?
A) Multi-region storage bucket with data residency in US
B) Regional storage in us-central1 with organization policy restricting resource
locations
C) Global storage with data residency in US
D) Multi-region storage with default encryption
