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4. Boot Process、UEFI、Secure Boot
#OS-01-004
中
Boot Process
UEFI
Secure Boot
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Which of the following statements accurately describe the system startup and boot process?
A
The BIOS/UEFI resides in volatile RAM and is the first program executed when the computer is powered on.
B
The Bootloader (e.g., GRUB) is typically responsible for loading the Operating System kernel from the disk into the main memory.
C
UEFI (Unified Extensible Firmware Interface) supports "Secure Boot," which checks the cryptographic signature of the bootloader and kernel to prevent malware injection.
D
The kernel initialization phase includes probing hardware, mounting the root file system, and starting the first user-space process (e.g., init or systemd).
E
The Master Boot Record (MBR) partition scheme is required for drives larger than 4 TB to function as a boot drive.
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