During sleep mode, which memory component’s contents are preserved?

During sleep mode, which memory component’s contents are preserved?

• A. RAM
• B. ROM
• C. Hard drive
• D. Cache

Answer: (A)

In sleep mode, the system keeps RAM powered at a low level to preserve its contents. RAM is the memory that holds the current programs and data the CPU is using, so keeping it energized allows the computer to resume quickly with everything intact. ROM stores firmware and is non-volatile, so its data stays without power but isn’t what’s being preserved to maintain the active state. The hard drive holds long-term storage and can be powered down in sleep, while cache is also volatile and not guaranteed to retain its contents in sleep. So RAM is the memory component whose contents are preserved.

In sleep mode, the system keeps RAM powered at a low level to preserve its contents. RAM is the memory that holds the current programs and data the CPU is using, so keeping it energized allows the computer to resume quickly with everything intact. ROM stores firmware and is non-volatile, so its data stays without power but isn’t what’s being preserved to maintain the active state. The hard drive holds long-term storage and can be powered down in sleep, while cache is also volatile and not guaranteed to retain its contents in sleep. So RAM is the memory component whose contents are preserved.