[Dec 28, 2021] New Updated XK0-004 Exam Questions 2021 [Q73-Q91]

[Dec 28, 2021] New Updated XK0-004 Exam Questions 2021

Updated Free CompTIA XK0-004 Test Engine Questions with 266 Q&As

What's Next Step?

Linux has been gaining deserved attention in recent years, as it's become a critical aspect of day to day living and so are its certifications. If you think that this is the right path for you, you will most likely jumpstart your training using the aforementioned CompTIA Linux+ certificate. After completing this training, you will gain multiple avenues to build your knowledge or expand your technical skills even further. Here are some of the best certifications that you can take to help advance your skills along the same path:

The GCUX-GIAC Certified Unix Security Administrator;
The Red Hat Certified System Administrator (RHCSA).

Always remember that your training doesn't end with the Linux certifications. So, if you are not satisfied with your accomplishments in this field, you can always tread a completely different path by focusing on other IT domains such as network, security, or cloud computing. But how about giving the new CompTIA XK0-004 exam your best shot first?

NEW QUESTION 73
Which of the following is a difference between YAML and JSON?

A. JSON is used in web development, while YAML is used solely in back-end systems.
B. JSON only curly brackets, while YAML only uses square brackets
C. Users can comment in YAML but not in JSON
D. YAML has been deprecated for JSON.

Answer: C

NEW QUESTION 74
Find the file named core and remove it from the system.
INSTRUCTIONS
Type "help" to display a list of available commands.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

A. Solution as
B. Solution as

Answer: B

Explanation:
Reference:
https://www.cyberciti.biz/faq/linux-unix-how-to-find-and-remove-files/

NEW QUESTION 75
A Linux administrator wants to obtain a list of files and subdirectories in the /etc directory that contain the word "services". Once the files and subdirectories are discovered, they should be listed alphabetically in the / var/tmp/foundservicesfile. Which of the following shell scripts will accomplish this task?
#/bin/bash

A. find /etc -name services -sort > /var/tmp/foundservices
B. locate /etc -sort -name services > /var/tmp/foundservices
#/bin/bash
C. find -name services -sort </var/tmp/foundservices
#/bin/bash
D. find /etc -name services | sort > /var/tmp/foundservices
#/bin/bash

Answer: D

Explanation:
Explanation/Reference:

NEW QUESTION 76
A Linux administrator is adding a static IP address to a network interface on a Linux system. The administrator modifies the ifcfg- eth0 configuration file with the following settings:

After the administrator restarts the Linux server, the system is not connected to the network. Which of the following configuration settings needs to be changed?

A. Set BOOTPROTO to NONE and ONBOOT to yes.
B. Set BOOTPROTO to BOOTP and USERCTL to yes.
C. Set USERCTL to yes and ONBOOT to no.
D. Set NETMASK to 255.255.0.0 and ONBOOT to yes.

Answer: D

NEW QUESTION 77
A user needs to modify the IP address of a laptop. Which of the following files can be used to configure the network interface named eth0?

A. /etc/sysconfig/network-scripts/ifcfg-eth0
B. /system/networking/ifconfig
C. /etc/sysconfig/network/interfaces.cnf
D. /system/config/interfaces
E. /etc/interfaces/eth0.conf

Answer: A

Explanation:
Explanation/Reference: https://opensource.com/life/16/6/how-configure-networking-linux

NEW QUESTION 78
An administrator needs to see the type of CPU that a server is running. Which of the following files contains this information?

A. /sys/dev/cpuinfo
B. /proc/cpuinfo
C. /dev/proc/cpu
D. /etc/devices/info.conf

Answer: B

Explanation:
Reference:
https://www.binarytides.com/linux-cpu-information/

NEW QUESTION 79
Using which of the following control mode commands is the correct way to substitute all occurrences of /dev/ sdc with /dev/sdd while editing a file in vi?

A. :s/\/dev\/sdc/\/dev\/sdd/g
B. :s//dev/sdc//dev/sdd
C. :%s/\/dev\/sdc/\/dev\/sdd
D. :s/\/dev\/sdc/\/dev\/sdd

Answer: B

NEW QUESTION 80
A Linux server needs to be accessed, but the root password is not available.
Which of the following would BEST allow an administrator to regain access and set a new known password at the same time?

A. Boot into single-user mode and reset the password by editing the /etc/shadowfile.
B. Boot into single-user mode and reset the password via the passwdcommand.
C. Boot into single-user mode and reset the password by editing the /etc/passwdfile.
D. Boot into single-user mode and reset the password via the chagecommand.

Answer: B

Explanation:
Explanation/Reference: https://phoenixnap.com/kb/how-to-change-root-password-linux

NEW QUESTION 81
Ann, a junior Linux administrator, needs to copy software from her local machine to assist in developing a software application on a remote machine with the IP address 192.168.3.22. The file needs to be placed on the /tmpdirectory. After downloading the RPM to the local machine, which of the following commands would be BEST to use to copy the software?

A. wget [email protected]:/tmp -f ~/software.rpm
B. scp [email protected] ~/software.rpm :/tmp
C. scp ~/software.rpm [email protected]:/tmp
D. scp ~/software.rpm [email protected]: /tmp

Answer: C

NEW QUESTION 82
A Linux administrator opens a ticket to have an external hard drive mounted. As a security policy, external storage kernel modules are disabled.
Which of the following is the BEST command for adding the proper kernel module to enable external storage modules?
rmmod /lib/modules/3.6.12-100-generic/kernel/drivers/usb/storage/usb-

A. storage.ko
B. storage.ko
depmod /lib/modules/3.6.12-100-generic/kernel/drivers/usb/storage/usb-
C. storage.ko
modinfo /lib/modules/3.6.12-100-generic/kernel/drivers/usb/storage/usb-
D. storage.ko
insmod /lib/modules/3.6.12-100-generic/kernel/drivers/usb/storage/usb-

Answer: A

Explanation:
Explanation/Reference: https://www.cyberciti.biz/faq/linux-how-to-load-a-kernel-module-automatically-at-boot-time/

NEW QUESTION 83
Which of the following are Linux desktop managers? (Choose two.)

A. GNOME
B. VNC
C. GUI
D. SPICE
E. X11
F. KDE

Answer: A,F

NEW QUESTION 84
A Linux administrator is setting up a testing environment and needs to connect to a separate testing server using the production server name. The administrator needs to override the hostname that the DNS is returning in order to use the test environment. Which of the following commands should be run on each of the testing systems to BEST meet this goal?

A. # ip addr add 192.168.1.100/24 dev eth0 && rndc reload production.company.com
B. # hostnamectl set-hostname "192.168.1.100 production.company.com"
C. # echo "192.168.1.100 production.company.com" >> /etc/hosts
D. # grep -i IP "${ip addr show} production.company.com" > /etc/resolv.conf

Answer: B

NEW QUESTION 85
A Linux administrator attempts to install the package newprogram.x86_64.rpm using a package manager.
The administrator receives a warning indicating the command that was run was using a deprecated package manager. Which of the following commands should the administrator use to avoid the warning and install the newprogram.x86_64.rpm program?

A. # rpm -e newprogram.x86_64.rpm
B. # apt-get install newprogram.x86_64.rpm
C. # dpkg -i newprogram.x86_64.rpm
D. # dnf install newprogram.x86_64.rpm

Answer: A

NEW QUESTION 86
Which of the following is a difference between YAML and JSON?

A. JSON is used in web development, while YAML is used solely in back-end systems.
B. JSON only curly brackets, while YAML only uses square brackets
C. Users can comment in YAML but not in JSON
D. YAML has been deprecated for JSON.

Answer: C

Explanation:
Explanation/Reference: https://www.json2yaml.com/yaml-vs-json

NEW QUESTION 87
A junior administrator needs to unload an older video kernel module.
Which of the following commands would BEST accomplish this task?

A. chmod
B. insmod
C. rmmod
D. modprobe
E. depmod

Answer: D

Explanation:
Explanation/Reference: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/ Kernel_Administration_Guide/sec-Unloading_a_Module.html

NEW QUESTION 88
A Linux administrator is setting up a testing environment and needs to connect to a separate testing server using the production server name. The administrator needs to override the hostname that the DNS is returning in order to use the test environment. Which of the following commands should be run on each of the testing systems to BEST meet this goal?

A. # ip addr add 192.168.1.100/24 dev eth0 && rndc reload production.company.com
B. # hostnamectl set-hostname "192.168.1.100 production.company.com"
C. # echo "192.168.1.100 production.company.com" >> /etc/hosts
D. # grep -i IP "${ip addr show} production.company.com" > /etc/resolv.conf

Answer: B

Explanation:
Explanation/Reference: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/ sec_configuring_host_names_using_hostnamectl

NEW QUESTION 89
A user has connected a Bluetooth mouse to a computer, but it is not working properly. Which of the following commands should the systems administrator use to fix the issue?

A. depmod -i bluetooth
B. lsmod -i bluetooth
C. insmod bluetooth
D. modprobe -r bluetooth

Answer: D

NEW QUESTION 90
The lead Linux has added a disk, /dev/sdd, to a VM that is running out of disk space. Place the following steps in the correct order from first (1) to last (4) to add the disk to the existing LVM.