Which feature is commonly associated with UEFI but not with older BIOS?

Which feature is commonly associated with UEFI but not with older BIOS?

• A. Secure Boot
• B. Memory parity
• C. Power management mode
• D. Automatic software updates

Answer: (A)

Secure Boot is the feature associated with UEFI that isn’t part of older BIOS. It works by checking the digital signatures of the bootloader and other early-boot software before they run, using a trusted key hierarchy stored in the firmware. If something isn’t signed by a trusted source, the boot process is halted. This helps stop rootkits or bootkits from loading at startup, which is a security capability that UEFI introduced and BIOS didn’t standardize. Other options aren’t unique to UEFI. Memory parity is a hardware-level memory error-detection concept, not tied to the firmware interface. Power management features and automatic software updates can be present in both BIOS-based and UEFI-based systems, with implementations that vary by vendor.

Secure Boot is the feature associated with UEFI that isn’t part of older BIOS. It works by checking the digital signatures of the bootloader and other early-boot software before they run, using a trusted key hierarchy stored in the firmware. If something isn’t signed by a trusted source, the boot process is halted. This helps stop rootkits or bootkits from loading at startup, which is a security capability that UEFI introduced and BIOS didn’t standardize.

Other options aren’t unique to UEFI. Memory parity is a hardware-level memory error-detection concept, not tied to the firmware interface. Power management features and automatic software updates can be present in both BIOS-based and UEFI-based systems, with implementations that vary by vendor.