System Booting Exam Questions Chapter 28

Linux Essentials for Cybersecurity (Rothwell/Kinsey)

Chapter 28 System Booting

1) Which of the following is not one of the four primary phases of the boot process of a Linux operating system?

A) BIOS/UEFI phase

B) Bootloader phase

C) Pre-kernel phase

D) Kernel phase

2) Which of the following is considered firmware, a program embedded within the hardware?

A) UEFI

B) BIOS

C) RAID

D) LVM

3) UEFI is short for which of the following?

A) Unified Extensible Filesystem Interface

B) User Extensible Firmware Interface

C) User Extensible Filesystem Interface

D) Unified Extensible Firmware Interface

4) Which of the following is a software program provided by the operating system that is designed to access files on the hard drive and start the booting of the operating system?

A) The kernel

B) The bootloader

C) MBR

D) GUI

5) During the __________ phase of the boot process of a Linux operating system, the kernel configures itself and loads kernel modules.

A) kernel

B) post-kernel

C) bootloader

D) BIOS/UEFI

6) Once the kernel has completed all its tasks, it starts a process called the __________ phase that finishes booting the operating system.

A) kernel

B) post-kernel

C) bootloader

D) BIOS/UEFI

7) Which of the following is a bootup technology that is commonly used on modern Linux systems?

A) Upstart

B) systemd

C) SysVinit

D) All of the above

8) Which of the following is not true when comparing the GRUB and GRUB 2 technologies?

A) Legacy GRUB uses a single, simple configuration file; GRUB 2 uses a more complex system.

B) GRUB 2 was developed to overcome the limitations of Legacy GRUB.

C) GRUB supports more operating systems than GRUB 2.

D) GRUB 2 supports LVM and RAID devices; Legacy GRUB cannot access these devices.

9) Which of the following Legacy GRUB configuration settings indicates which title to boot if a title is not selected before the timeout value is reached?

A) timeout

B) default

C) hiddenmenu

D) splashimage

10) During the boot process for Legacy GRUB, you can perform which of the following operations that change how the system boots?

A) Modify parameters for a title

B) Execute GRUB commands via the GRUB command line

C) Select an alternative title for booting

D) All of the above

11) On Red Hat-based distributions, the primary configuration file for GRUB 2 is __________.

A) /boot/grub2/grub

B) /boot/grub/grub.cfg

C) /etc/default/grub

D) /etc/grub.d

12) Which of the following /etc/default/grub settings contains values to add to the kernel line to pass parameters to the kernel (such as quiet and rhgb)?

A) GRUB_DEFAULT

B) GRUB_TIMEOUT

C) GRUB_CMDLINE_LINUX

D) GRUB_TIMEOUT_STYLE

13) Which of the following kernel documentation locations is for older versions of the kernel (typically before version 3.0) and requires installation of the kernel-devel package?

A) The /usr/share/doc/kernel-doc*/Documentation directory

B) The /usr/src/linux/Documentation directory

C) The https://www.kernel.org/doc site

D) None of the above

14) Which of the following is an identifier assigned to an open file, for example, when a process opens a file, either for reading or writing?

A) file-max

B) file-handle

C) file-nr

D) nr-open

15) When working with modules, the __________ command is useful because its output tells you which kernel you are currently using.

A) ls

B) kernel

C) uname

D) pwd

16) When a module is loaded into memory, you can see it in the output of the __________ command.

A) lsmod

B) depmod

C) grep

D) mount

17) Which of the following commands searches the modules.dep file to find the location of the module that you want to load?

A) insmod

B) lsmod

C) modprobe

D) modinfo

18) Kernel parameters can be modified on the fly by changing files in the __________ directory.

A) /usr/share/doc

B) /lib/modules

C) /usr/src/linux

D) /proc/sys

19) To view all the kernel and kernel module parameters, execute the sysctl command with the __________ option.

A) -q

B) -a

C) -w

D) -p

20) Which of the following key settings of a service unit file is used to indicate which target to associate with the service?

A) WantedBy

B) ExecStart

C) After

D) Before