What determines how long a piece of information lasts on a system?

• A. Order of volatility
• B. Data retention policy
• C. Time to live
• D. Information lifecycle

Answer: (A)

Volatility of data on a system determines how long it remains accessible. Some information is highly volatile—like the contents of RAM and other in‑memory data—which can disappear the moment the system loses power or changes state. Other data sits on non-volatile storage and can persist for much longer. The order of volatility guides investigators to collect the most volatile data first because it’s the data most likely to be lost quickly. That focus on how quickly data can disappear is why this concept best explains what determines how long information lasts on a system. Data retention policy deals with how long an organization keeps data, time to live is a networking term about data validity, and the information lifecycle describes stages of data from creation to disposal, not the immediate persistence on a running system.