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41.
Where might the BIOS find a boot loader?
  • A.
    RAM
  • B.
    /dev/boot
  • C.
    MBR
  • D.
    /dev/kmem
  • Answer & Explanation
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Answer : [C]
Explanation :
The Master Boot Record (MBR) can contain a small boot loader, making option C correct. If more space is required, the boot loader must load a secondary boot loader. Although the boot loader is loaded into RAM, it's not stored there permanently because RAM is volatile storage, so option A is incorrect. Both /dev/boot and /dev/kmem are references to files on Linux filesystems; they're meaningful only after the BIOS has found a boot loader and run it and lots of other boot processes have occurred, so options B and D are both incorrect.
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42.
Which of the following files might you edit to configure GRUB Legacy? (Choose all that apply.)
  • A.
    /boot/grub/menu.lst
  • B.
    /etc/boot.conf
  • C.
    /boot/grub/grub.conf
  • D.
    /boot/menu.conf
  • Answer & Explanation
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Answer : [A, C]
Explanation :
The official GRUB Legacy configuration filename is /boot/grub/menu.lst ; however, some distributions use /boot/grub/grub.conf instead. Thus, options A and C are both correct. Options B and C are fictitious.
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43.
What action must you take after editing the /etc/lilo.conf file, assuming this file is relevant to your installation?
  • A.
    Type lilo - install as root .
  • B.
    Edit /boot/grub/grub.cfg as root .
  • C.
    Edit /boot/lilo/lilo.cfg as root .
  • D.
    Type lilo as root
  • Answer & Explanation
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Answer : [D]
Explanation :
LILO relies upon the lilo utility to read /etc/lilo.conf and write binary code that refl ects the configuration file into locations that the boot loader can read. Thus, after editing /etc/lilo.conf , you must type lilo to re - install the boot loader, as option D specifies. Option A's lilo - install command is fictitious (although there is a grub - install command to install GRUB). The /boot/grub/grub.cfg file is a GRUB 2 configuration file, so it's irrelevant to LILO configuration, and option B is incorrect. There is no /boot/lilo/lilo.cfg file, so option C is incorrect.
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44.
What tool can you use to completely disable hardware that's built into a computer's motherboard?
  • A.
    The insmod utility
  • B.
    The firmware's setup utility
  • C.
    GRUB 2's hwdel command
  • D.
    The initrd command
  • Answer & Explanation
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Answer : [B]
Explanation :
Computers come with firmware configuration tools that can, among other things, completely disable some of the hardware devices that are built into the computer. Thus, option B is correct. The Linux insmod utility can load a kernel module. This action won't disable hardware, but could make it available under Linux, so option A has, if anything, the opposite of the specified effect. Option C describes a fictitious command. There is no standard initrd command, although this is a term that refers to an initial RAM disk, which is used to hold kernel modules and setup utilities that the Linux kernel can use before it has mounted its ultimate root ( / ) filesystem.
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45.
Which two software components is GRUB 2 likely to load on an Efi- based system? (Select two.)
  • A.
    Efidriver modules
  • B.
    A Linux kernel
  • C.
    The contents of /etc/passwd
  • D.
    An initial RAM disk
  • Answer & Explanation
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Answer : [B, D]
Explanation :
Whether it runs on a BIOS - based computer or an Efi- based computer, when it boots Linux, GRUB 2 loads a Linux kernel and (usually) an initial RAM disk, so options B and D are correct. Efidriver modules may be loaded by the Efiprior to launching GRUB 2, but they aren't loaded by GRUB 2 itself, so option A is incorrect. Linux reads the contents of /etc/passwd well after GRUB 2 has finished its work, so option C is incorrect.
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