A cloud engineer is deploying an application that requires temporary storage for session caching. The data does not need to be saved after the virtual machine instance is terminated. The primary requirements are high I/O performance and minimizing additional costs. Which data storage type best fits this scenario?
Ephemeral data is temporary storage that is tied to the lifecycle of a cloud resource, such as a virtual machine. It is deleted when the resource is terminated. Because it is often located on the same physical host as the instance, it provides high I/O performance, making it ideal for caching and temporary files. Persistent storage would be used for data that needs to be retained after the instance is terminated. Cold storage is for long-term archival, and off-site backups are for disaster recovery; neither fits the requirements for temporary session data.
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