Which statement best describes memory volatility?

Which statement best describes memory volatility?

• A. RAM is volatile and loses data without power; ROM is non-volatile and retains data.
• B. RAM is non-volatile and ROM is volatile.
• C. Both RAM and ROM are volatile.
• D. Both RAM and ROM are non-volatile.

Answer: (A)

Memory volatility is about whether data is kept when power is removed. RAM is volatile, so its contents are lost when the device powers down. ROM is non-volatile, meaning its data stays intact without power. The statement that RAM is volatile and loses data without power while ROM is non-volatile and retains data best describes memory volatility. The other possibilities contradict how RAM and ROM behave, such as claiming RAM is non-volatile or ROM is volatile, or that both are volatile or both non-volatile.

Memory volatility is about whether data is kept when power is removed. RAM is volatile, so its contents are lost when the device powers down. ROM is non-volatile, meaning its data stays intact without power. The statement that RAM is volatile and loses data without power while ROM is non-volatile and retains data best describes memory volatility. The other possibilities contradict how RAM and ROM behave, such as claiming RAM is non-volatile or ROM is volatile, or that both are volatile or both non-volatile.