Microsoft Azure Architect Technologies (AZ-300) Practice Exam 2025 - Free AZ-300 Exam Questions and Study Guide

The 'Cool' storage tier in Azure is specifically designed for data that is rarely accessed but needs to be stored for a longer duration. This tier is optimized for costs associated with storing large volumes of data that are not frequently used, providing a balance between cost and access time. Data stored in the Cool tier is expected to remain inactive for at least 30 days, making it a practical choice for scenarios such as backup storage, archiving, and data that is infrequently accessed yet must be retained for compliance or regulatory purposes.

This tier has lower data retrieval costs compared to the 'Hot' storage tier, making it economically viable for workloads where access to the data is sporadic rather than continuous. In contrast, the other storage tiers or categories described do not align with the characteristics of the Cool tier. For example, the Hot tier caters to data that is accessed frequently, while the Premium tier is designed for high-performance workloads requiring very low latency, making them unsuitable for data that fits the Cool tier's intended use-case scenario.