How does Premium SSD differ from Standard HDD in Azure Disk Storage?
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Correct answer: High IOPS and low latency.
Why this is the answer
Premium SSDs are designed for high-performance, mission-critical workloads requiring high Input/Output Operations Per Second (IOPS) and low latency. They offer significantly faster performance compared to Standard HDDs, which are magnetic drives best suited for infrequent access scenarios and development/test workloads. While Premium SSDs do have a higher cost per GB, their performance benefits justify the expense for demanding applications. Hot-tier compatibility is a concept more relevant to Azure Blob Storage, not directly differentiating disk types. Both Premium SSDs and Standard HDDs can be encrypted, either through Azure Storage Service Encryption (SSE) or Azure Disk Encryption (ADE), so "encrypted by default" isn't a distinguishing factor.
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