LFCS Linux Foundation Certified System Administrator

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Revisa las primeras 10 preguntas. Las respuestas aparecen solo al hacer el simulacro.

1. 1 · Geral

   Which SysV init configuration file should be modified to disable the ctrl-alt-delete key combination?

   • A)/etc/keys
   • B)/proc/keys
   • C)/etc/inittab
   • D)/proc/inittab
   • E)/etc/reboot

2. 2 · Geral

   During a system boot cycle, what program is executed after the BIOS completes its tasks?

   • A)The bootloader
   • B)The inetd program
   • C)The init program
   • D)The kernel

3. 3 · Geral

   Which run levels should never be declared as the default run level when using SysV init? (Choose TWO correct answers.)

   • A)0
   • B)1
   • C)3
   • D)5
   • E)6

4. 4 · Geral

   Which of the following statements is correct when talking about /proc/?

   • A)All changes to files in /proc/ are stored in /etc/proc.d/ and restored on reboot.
   • B)All files within /proc/ are read-only and their contents cannot be changed.
   • C)All changes to files in /proc/ are immediately recognized by the kernel.
   • D)All files within /proc/ are only readable by the root user.

5. 5 · Geral

   What of the following statements are true regarding /dev/ when using udev? (Choose TWO correct answers.)

   • A)Entries for all possible devices get created on boot even if those devices are not connected.
   • B)Additional rules for udev can be created by adding them to /etc/udev/rules.d/.
   • C)When using udev, it is not possible to create block or character devices in /dev/ using mknod.
   • D)The /dev/ directory is a filesystem of type tmpfs and is mounted by udev during system startup.
   • E)The content of /dev/ is stored in /etc/udev/dev and is restored during system startup.

6. 6 · Geral

   Which of the following information is stored within the BIOS? (Choose TWO correct answers.)

   • A)Boot device order
   • B)Linux kernel version
   • C)Timezone
   • D)Hardware configuration
   • E)The system's hostname

7. 7 · Geral

   Which of the following commands reboots the system when using SysV init? (Choose TWO correct answers.)

   • A)shutdown -r now
   • B)shutdown -r "rebooting"
   • C)telinit 6
   • D)telinit 0
   • E)shutdown -k now "rebooting"

8. 8 · Geral

   Which of the following are init systems used within Linux systems? (Choose THREE correct answers.)

   • A)startd
   • B)systemd
   • C)Upstart
   • D)SysInit
   • E)SysV init

9. 9 · Geral

   What information can the lspci command display about the system hardware? (Choose THREE correct answers.)

   • A)Device IRQ settings
   • B)PCI bus speed
   • C)System battery type
   • D)Device vendor identification
   • E)Ethernet MAC address

10. 10 · Geral

    Which of the following commands brings a system running SysV init into a state in which it is safe to perform maintenance tasks? (Choose TWO correct answers.)

    • A)shutdown -R 1 now
    • B)shutdown -single now
    • C)init 1
    • D)telinit 1
    • E)runlevel 1

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