Which statement best describes which components store BIOS settings?

Which statement best describes which components store BIOS settings?

• A. Real Time Clock (RTC), Non-volatile RAM (NVRAM)
• B. CMOS battery
• C. BIOS ROM
• D. RAM modules

Answer: (A)

BIOS settings are kept in non-volatile memory on the motherboard, specifically CMOS RAM, which is designed to retain data when power is off and is powered by the CMOS battery. The Real Time Clock is part of the same CMOS/RTC hardware and relies on the same battery to keep time and preserve settings. RAM modules, by contrast, are volatile and lose their contents when power is removed, so they don’t store BIOS settings. BIOS ROM holds the firmware code, not the user-configured settings. So the best description is that BIOS settings live in NVRAM (CMOS RAM) with the RTC on the same subsystem, powered by the CMOS battery.

BIOS settings are kept in non-volatile memory on the motherboard, specifically CMOS RAM, which is designed to retain data when power is off and is powered by the CMOS battery. The Real Time Clock is part of the same CMOS/RTC hardware and relies on the same battery to keep time and preserve settings. RAM modules, by contrast, are volatile and lose their contents when power is removed, so they don’t store BIOS settings. BIOS ROM holds the firmware code, not the user-configured settings. So the best description is that BIOS settings live in NVRAM (CMOS RAM) with the RTC on the same subsystem, powered by the CMOS battery.