What is a characteristic of sparse bundles?

Sparse bundles are a specific type of disk image used on macOS that allows for efficient storage management. A key characteristic of sparse bundles is that they comprise multiple files that make up the entire disk image. Unlike other disk image formats that are stored as a single file, a sparse bundle organizes its data into a collection of files within a folder structure, which can make it easier to manage and transfer.

This organization allows for the growth of the disk image as needed, meaning it increases in size only when new data is added rather than occupying the maximum size from the beginning. This can optimize space usage, especially when dealing with large amounts of data or variable file sizes.

The other options do not accurately reflect the nature of sparse bundles. They are not limited to storing only small files, nor are they restricted to app installations or to functioning solely on internal drives. Sparse bundles can be used across various drive types and for a range of purposes, including data storage and backup, further emphasizing their versatility.