Microsoft Certified: Azure Fundamentals (AZ-900) Practice Exam

File storage is the most suitable option for secure file storage that can be accessed by virtual machines (VMs) running different operating systems. Azure File Storage provides a fully managed file share in the cloud that is accessible via the SMB (Server Message Block) protocol, which is compatible with both Windows and Linux operating systems. This makes it versatile for applications and workloads that need a shared filesystem, enabling seamless file sharing across various environments. Additionally, Azure File Storage supports authentication and permissions through Azure Active Directory (AD) and can be integrated with on-premises Active Directory, ensuring secure access control. This capability is essential when managing sensitive or critical data that requires both accessibility and security. Other options, while useful for specific scenarios, do not meet the requirement as effectively. Disk storage is typically used for attaching managed disks directly to VMs and may not facilitate file sharing across VMs running different operating systems. Blob storage is optimized for unstructured data like images, audio, and video but does not provide a file system interface. Archive storage is designed for long-term data retention and is not intended for frequent access or for use as a shared file store.