CompTIA Linux+ (XK0-004) Practice Exam #3

You want to find any file named 42.tmp, which exists somewhere in your current directory’s
tree structure and display its contents to STDOUT. Which of the following will allow
you to build a command to do this? (Choose all that apply.

What command must you run to save changes to a GRUB Legacy boot menu?

You want to edit the file SpaceOpera.txt and decide to use the vim editor to complete this
task. Which of the following are vim modes you might employ? (Choose all that apply.)

The firmware method has replaced BIOS on most modern IBM-compatible computers

What program does the workstation firmware start at boot time?

What memory area does Linux use to store boot messages?

Where does the firmware first look for a Linux bootloader program?

What command parameter would you add to the end of the GRUB2 linux command to
force a Linux system to start in single-user mode?

You are a system administrator on a CentOS Linux server. You need to view records in the
/var/log/messages file that start with the date May 30 and end with the IPv4 address
192.168.10.42. Which of the following is the best grep command to use?

The _____________ command allows us to examine the most recent boot messages?

What is the term commonly used for when the Linux system halts due to a system error?

Which of the following is a BRE pattern that could be used with the grep command?
(Choose all that apply.)

By default, STDOUT goes to what item?

The __________ command generates the GRUB2 configuration used for booting.

You need to search through a large text file and find any record that contains either Luke or
Laura at the record’s beginning. Also, the phrase Father is must be located somewhere in
the record’s middle. Which of the following is an ERE pattern that could be used with the
egrep command to find this record?

You want to edit the file SpaceOpera.txt and decide to use the vim editor to complete this
task. Which of the following are vim modes you might employ? (Choose all that apply.)

What program allows you to fix corrupt hard drive partitions?

A file data.txt needs to be sorted numerically and its output saved to a new file newdata
.txt. Which of the following commands can accomplish this task? (Choose all that apply.)

What folder do most Linux distributions use to store boot logs?

Which of the following commands can display the data.txt and datatoo.txt files’ content
one after the other to STDOUT? (Choose all that apply.)

Where does the workstation BIOS attempt to find a bootloader program? (Choose all
that apply.)

A text file, StarGateAttacks.txt, needs to be specially formatted for review. Which of the
following commands is the best command to accomplish this task quickly?

Where is the Master Boot Record located? (Choose all that apply.)

You need to format the string 42.777 into the correct two-digit floating number. Which of the following printf command FORMAT settings is the correct one to use?

The EFI System Partition (ESP) is stored in the directory on Linux systems.

A Unicode-encoded text file, MyUCode.txt, needs to be perused. Before you decide what
utility to use in order view the file’s contents, you employ the wc command on it. This utility
displays 2020 6786 11328 to STDOUT. What of the following is true? (Choose all that
apply.)

What filename extension do UEFI bootloader files use?

Which of the following best defines a file descriptor?

Which was the first bootloader program used in Linux?

Which of the following commands will display the file SpaceOpera.txt to output as well
as save a copy of it to the file SciFi.txt?

Where are the GRUB Legacy configuration files stored?

Which of the following commands will put any generated error messages into the black
hole?

Where are GRUB2 configuration files stored? (Choose all that apply.)

Which of the following commands will determine how many records in the file Problems
.txt contain the word error?

You must run the command to generate the GRUB2 grub.cfg configuration file