Microsoft Azure Architect Design (AZ-304) Practice Test

Which storage solution provides built-in replication to Azure for on-premises resources?

1. Azure Blob Storage

2. Azure Data Lake Storage

3. Azure Table Storage

4. Azure File Storage

The correct answer is: Azure Blob Storage

Azure Blob Storage is a scalable cloud storage solution that allows for the storage of unstructured data. One of its key features is the ability to easily replicate data stored in Azure Blob Storage to different geographic regions, thereby ensuring high availability and durability. This capability is particularly beneficial for businesses that need to safeguard their data against regional failures or disasters. However, while Azure Blob Storage itself has robust replication options, it is more accurate to associate built-in replication to Azure for on-premises resources with Azure File Sync. This service lets you centralize your files in Azure while maintaining the flexibility, performance, and compatibility of an on-premises file server. Through Azure File Sync, file shares in the cloud are mirrored with on-premises servers, providing seamless integration and data protection. Azure Data Lake Storage primarily focuses on big data analytics rather than built-in replication features. Azure Table Storage is a NoSQL key-value store that is optimized for structured data but does not feature built-in replication. Azure File Storage does allow for file sharing over the cloud, but its replication capabilities are not directly comparable to those of Azure Blob Storage or Azure File Sync. In the context of built-in replication specifically tailored for on-premises resources, Azure File Sync is the more accurate service to consider,