Which Azure storage tier is optimized for infrequently accessed data?

The Cool storage tier is optimized for infrequently accessed data, offering lower storage costs compared to the Hot tier, but with higher access costs and slightly higher latency. This makes it suitable for data that is accessed less than once a month but still needs to be readily available. The Hot tier is for frequently accessed data, providing the lowest access costs and highest performance. The Archive tier is for rarely accessed data with flexible latency requirements, offering the lowest storage costs but the highest access costs and latency. Premium storage is designed for high-performance, I/O-intensive workloads, using SSDs for very low latency, and is not a tier for infrequently accessed data.