Which type of data is stored on devices or servers?

• A. Data at rest
• B. Data in transit
• C. Data in use
• D. Data in motion

Answer: (A)

Think about the different places data can be while it’s being handled. When data is not actively moving or being processed—it's simply stored on a storage device like a hard drive, SSD, or a server waiting to be accessed later—that’s data at rest. This includes files saved on your computer, databases stored on a server, or backups kept on storage devices.

Data in transit (or in motion) is data moving across a network, such as files being transmitted or packets traveling between systems. Data in use is data loaded into memory and being processed by a computer. Since the question specifies data that is stored on devices or servers, the best fit is data at rest.