Exam AZ-900: Microsoft Azure Fundamentals Study Materials

Microsoft has given the study materials, you can go through it.

Study guide for AZ-900 - https://learn.microsoft.com/en-us/credentials/certifications/resources/study-guides/az-900

Microsoft Azure Fundamentals: Describe cloud concepts - https://learn.microsoft.com/en-us/training/paths/microsoft-azure-fundamentals-describe-cloud-concepts/

Microsoft Azure Fundamentals: Describe Azure architecture and services - https://learn.microsoft.com/en-us/training/paths/azure-fundamentals-describe-azure-architecture-services/

Microsoft Azure Fundamentals: Describe Azure management and governance - https://learn.microsoft.com/en-us/training/paths/describe-azure-management-governance/

Certification Details - https://learn.microsoft.com/en-us/credentials/certifications/azure-fundamentals/

Free practice assessment - https://learn.microsoft.com/credentials/certifications/exams/az-900/practice/assessment?assessment-type=practice&assessmentId=23

For a demo exam experience - https://go.microsoft.com/fwlink/?linkid=2226877