Session Review

Question 1 (101.2-019 / command_line)

Enter the command used to read systemd journal entries from the current system.

Status: Unanswered

Your Answer:

Accepted Answer(s):
journalctl

Explanation:
journalctl is explicitly listed in the objective for checking boot events in log files [1].

Question 2 (101.2-014 / short_answer)

What program loads the Linux kernel during the boot process?

Status: Unanswered

Your Answer:

Accepted Answer(s):
bootloader
the bootloader

Explanation:
The kernel is loaded by a program called a bootloader [1].

Question 3 (101.2-018 / command_line)

Enter the command commonly used to display kernel ring buffer messages, including boot-time hardware detection output.

Status: Unanswered

Your Answer:

Accepted Answer(s):
dmesg

Explanation:
dmesg is one of the listed utilities for examining boot events [1].

Question 4 (101.2-017 / short_answer)

Which early-boot component provides a temporary userspace before the real root filesystem is mounted?

Status: Unanswered

Your Answer:

Accepted Answer(s):
initramfs
initial ram filesystem

Explanation:
The objective includes initramfs as part of required knowledge. Its role as early userspace is based on standard Linux boot knowledge, consistent with the objective scope [1].

Question 5 (101.2-013 / short_answer)

Name the two common firmware interfaces mentioned for x86 systems during boot.

Status: Unanswered

Your Answer:

Accepted Answer(s):
BIOS and UEFI
UEFI and BIOS

Explanation:
The lesson identifies BIOS and UEFI as the firmware interfaces involved in the boot process [1].

Question 6 (101.2-003 / multiple_choice)

Which of the following can a bootloader pass to the Linux kernel at boot time?

Status: Unanswered

Your Answer:

Options:

• Filesystem permissions only
• Kernel parameters such as the root filesystem location
• Only network interface names
• Only user passwords

Explanation:
The bootloader can be customized to pass parameters to the kernel, such as which partition contains the root filesystem or which mode the operating system should use [1].

Question 7 (101.2-024 / multiple_choice)

Which of the following is NOT listed in the partial list of terms and utilities for Objective 101.2?

Status: Unanswered

Your Answer:

Options:

• dmesg
• journalctl
• initramfs
• wall

Explanation:
The partial list for 101.2 includes dmesg, journalctl, BIOS, UEFI, bootloader, kernel, initramfs, init, SysVinit and related terms. wall appears under 101.3, not 101.2 [1].

Question 8 (101.2-005 / multiple_choice)

Which utility is commonly used to view kernel ring buffer messages from the boot process?

Status: Unanswered

Your Answer:

Options:

• dmesg
• wall
• passwd
• uptime

Explanation:
The objective’s partial list of utilities includes dmesg for checking boot events [1].

Question 9 (101.2-021 / multiple_choice)

Which item below is listed as part of the key knowledge areas for Objective 101.2?

Status: Unanswered

Your Answer:

Options:

• Compile a custom kernel from source
• Provide common commands to the boot loader and options to the kernel at boot time
• Build RAID arrays from the shell
• Manage package signatures

Explanation:
The objective explicitly lists providing common commands to the boot loader and options to the kernel at boot time [1].

Question 10 (101.2-007 / multiple_choice)

What is initramfs primarily used for during boot?

Status: Unanswered

Your Answer:

Options:

• To permanently store user home directories
• To provide a temporary root filesystem needed early in boot
• To replace the kernel
• To manage network firewalls

Explanation:
The objective includes initramfs as part of boot-system knowledge. initramfs is the temporary early userspace used before the real root filesystem is mounted; this wording is based on standard Linux boot knowledge beyond the provided excerpt [1].