Microsoft Azure Architect Design (AZ-301) Practice Exam

Which type of storage is recommended for system backups in high-performance applications?

1. Premium Managed Disk

2. Standard Managed Disk

3. Locally-Redundant Storage (LRS)

4. Blob Storage

The correct answer is: Locally-Redundant Storage (LRS)

The ideal type of storage for system backups in high-performance applications is Premium Managed Disk. This option is optimized for scenarios requiring low latency and high throughput, which are essential characteristics in high-performance applications. Premium Managed Disks leverage SSD technology, providing superior performance compared to standard disks. This means faster read and write operations, which is crucial for system backup operations that need to be completed swiftly to minimize application downtime and ensure data consistency. Additionally, Premium Managed Disks automatically handle I/O performance and scale, enabling organizations to manage their workloads effectively without the overhead of manually configuring and managing the storage infrastructure. Locally Redundant Storage (LRS), while a valid option for data redundancy and resilience, does not specifically target performance metrics such as low latency and high IOPS that are critical for high-performance applications. LRS primarily focuses on protecting data against local hardware failures rather than performance optimization. Standard Managed Disks may also lack the performance characteristics ideal for high-throughput applications, as they are designed more for cost-effectiveness rather than performance. Blob Storage, although versatile and suitable for different types of data, is generally not optimized for the specific I/O operations required for system backups in high-performance environments. In summary, the choice of Premium Managed Disks aligns