CompTIA Network+ Practice Test

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What is meant by "data at rest"?

Data actively being transmitted over the Internet
Data stored on a storage device
Data that is no longer accessible
Data used in real-time processing

The correct answer is: Data stored on a storage device

The term "data at rest" specifically refers to data that is stored on a storage device and is not actively moving between devices or networks. This can include data saved on hard drives, SSDs, and any form of data storage where the information is static and not currently being processed or transferred. Understanding "data at rest" is vital in the context of data security and management, as securing data at rest involves different strategies compared to data in transit or data in use. For example, encryption is a common method used to protect data at rest to prevent unauthorized access. By focusing on data that is stored rather than being transmitted or processed, organizations can implement more effective data governance and security practices. Other choices refer to different states or uses of data. For example, data actively being transmitted characterizes data in motion or transit, while data used in real-time processing pertains to operational data that is actively being processed and utilized. Data that is no longer accessible may not be defined as 'data at rest' since it does not imply storage; it may instead indicate deletion or corruption.