Microsoft Azure Architect Design (AZ-304) Practice Test

Which solution would NOT support the requirement of redundancy if an Azure region fails?

1. Azure Load Balancer

2. Azure Traffic Manager

3. Azure Application Gateway

4. Azure Blob Storage

The correct answer is: Azure Blob Storage

The choice of Azure Blob Storage as the solution that would not support redundancy in the event of an Azure region failure is accurate because Azure Blob Storage is typically tied to a specific region. While Azure offers redundancy options within its storage services, such as Geo-Redundant Storage (GRS) or Read-Access Geo-Redundant Storage (RA-GRS), these options primarily serve to protect against data loss rather than to ensure operational continuity in case an entire region goes down. In such scenarios, the data can still be inaccessible if the region that hosts your primary storage experiences an outage, even if your data is replicated to another region. In contrast, services like Azure Load Balancer, Azure Traffic Manager, and Azure Application Gateway are specifically designed to manage traffic and ensure high availability across multiple instances or regions. Azure Load Balancer can distribute incoming network traffic across virtual machines located in different availability zones or regions, thereby maintaining application availability. Azure Traffic Manager routes traffic to the closest or most available endpoint, which could be in a different region if one region fails. Azure Application Gateway can operate similarly by providing application-level load balancing with geographic distribution capabilities. This understanding of the distinctions in service capabilities illustrates why Azure Blob Storage, while valuable for data storage, does not inherently