010-160 - LPI Linux Essentials Hardware and Operating Systems Questions and Answers

Question 1

A system administrator needs to gather detailed information about the CPU architecture, such as the number of cores, threads per core, and CPU family.
Which command provides a comprehensive, human-readable summary of this information?

Accepted Answer

lscpu

Answer

cat /proc/cpuinfo

Answer

uname -p

Answer

dmesg | grep CPU

Question 2

What is the primary role of the BIOS or UEFI in the Linux boot process?

Accepted Answer

To initialize hardware and load the bootloader.

Answer

To load the graphical user interface.

Answer

To mount the root filesystem.

Answer

To start system services and daemons.

Question 3

Which of the following best describes the purpose of a kernel module in Linux?

Accepted Answer

A piece of code that can be loaded into the kernel to extend its functionality, such as for a device driver.

Answer

A user-space application that monitors system performance.

Answer

A script that runs at boot time to configure network settings.

Answer

The central, monolithic part of the kernel that manages core system processes.

Question 4

A user plugs in a new USB flash drive and wants to identify it from the command line. Which of the following commands is specifically designed to list information about all connected USB devices?

Accepted Answer

lsusb

Answer

lsblk

Answer

fdisk -l

Answer

lshw

Question 5

Which virtual filesystem in Linux provides an interface to kernel data structures and information about system processes?

Accepted Answer

/proc

Answer

/dev

Answer

/sys

Answer

/tmp

Question 6

After a system reboot, a technician wants to review the messages generated by the kernel during the startup sequence to troubleshoot a potential hardware detection issue. Which command is most suitable for viewing these kernel ring buffer messages?

Accepted Answer

dmesg

Answer

journalctl -u kernel

Answer

cat /var/log/syslog

Answer

history