Which statement best describes non-volatile memory?

Which statement best describes non-volatile memory?

• A. Data is erased when power is lost.
• B. Data is saved when power is lost (permanent).
• C. It is faster than volatile memory.
• D. It cannot be read by the CPU.

Answer: (B)

Non-volatile memory keeps its data even when the power is removed. That ability to retain information without a power supply is what makes it permanent storage, used for keeping files, firmware, and system data long-term. The statement that best describes it is that data is saved when power is lost (permanent). This contrasts with volatile memory, which loses data when power is cut. It isn’t inherently faster than volatile memory; RAM is typically faster for active tasks, though some non-volatile options are quite fast with modern hardware. Also, non-volatile memory can be read by the CPU through the usual memory hierarchy, so saying it cannot be read is not accurate.

Non-volatile memory keeps its data even when the power is removed. That ability to retain information without a power supply is what makes it permanent storage, used for keeping files, firmware, and system data long-term. The statement that best describes it is that data is saved when power is lost (permanent). This contrasts with volatile memory, which loses data when power is cut. It isn’t inherently faster than volatile memory; RAM is typically faster for active tasks, though some non-volatile options are quite fast with modern hardware. Also, non-volatile memory can be read by the CPU through the usual memory hierarchy, so saying it cannot be read is not accurate.