About This Domain
Domain 3 — Infrastructure and Application Modernization — accounts for ~25% of the CDL certification exam. This domain evaluates your understanding of compute engine (vms), gke (managed kubernetes), cloud run (serverless containers), and related concepts. Compute options, containers, serverless, and hybrid cloud with Anthos. To pass this section you need practical knowledge of how these services and patterns work together in real-world architectures.
What You'll Be Tested On
- Compute Engine (VMs)
- GKE (managed Kubernetes)
- Cloud Run (serverless containers)
- App Engine (PaaS)
- Anthos for hybrid/multi-cloud
Key Google Cloud Services in This Domain
Study Strategy for Domain 3
This domain represents ~25% of the total exam, making it a significant scoring area. Balance theoretical study with hands-on practice.
Exam Tips for Domain 3
Know the compute spectrum: VMs → containers → serverless.
Frequently Asked Questions
How many questions on the CDL exam come from Domain 3?
Domain 3 (Infrastructure and Application Modernization) makes up ~25% of the CDL exam, approximately 16 questions.
What services should I focus on for Domain 3?
Key services include Infrastructure.
How should I prepare for Infrastructure and Application Modernization questions?
Start by reviewing the key topics listed above, then practice with domain-specific questions. Focus on understanding real-world scenarios.
What's the best order to study the CDL domains?
Many candidates start with the highest-weighted domains first: Digital Transformation with Google Cloud (~17%), Innovating with Data and Google Cloud (~25%), Infrastructure and Application Modernization (~25%), Google Cloud Security and Operations (~25%), Trust and Security with Google Cloud (~8%).
Practice Domain 3 Questions
Test your knowledge of Infrastructure and Application Modernization with practice questions from our CDL question bank.
Start Practice Quiz →