[Jan-2022] CompTIA XK0-004 Test Engine PDF - All Free Dumps from TestInsides
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CompTIA XK0-004: Career Prospects
The professionals who pass the CompTIA XK0-004 exam are qualified to get the CompTIA Linux+ certification. With this certificate, they can explore a variety of career prospects. Some of the job roles that they can take up include a Systems Administrator, a Technical Support Specialist, a Linux Administrator, a Web Administrator, and a Network Administrator, among others. The salary outlook for these titles is also attractive as the certified individuals in any of these positions can earn an average of $75,000 per annum. It’s important to mention that some individuals can get more than this average sum as it mostly depends on their job role, experience, and their workplace.
NEW QUESTION 153
A systems administrator downloads an application's source files, compiles the application, and installs it per the application's installation instructions. When trying to run the application, the system states:
$ occmd
bash: occmd: command not found...
Running the locate command shows it does exist in the following location:
/opt/occmd/bin/occmd
Which of the following should the administrator do to allow the command to run properly? (Choose two.)
- A. sudo ln -s /opt/occmd/bin/occmd /usr/local/bin/occmd
- B. echo "export PATH=$PATH:/opt/occmd/bin" >> ~/.bashrc
- C. sudo mv /opt/occmd/bin/occmd /etc/bin/
- D. cd /opt/occmd/bin && chmod +x ./occmd && restorecon -rv *
- E. echo "#!/bin/bash \n ${which occmd}" > /usr/bin/occmd.sh
- F. mv /opt/occmd ~/ && ln -s ~/occmd/bin/occmd ./occmd
Answer: C,D
NEW QUESTION 154
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. scp ~/software.rpm [email protected]: /tmp
- B. scp [email protected] ~/software.rpm :/tmp
- C. wget [email protected]:/tmp -f ~/software.rpm
- D. scp ~/software.rpm [email protected]:/tmp
Answer: D
NEW QUESTION 155
A Linux administrator needs to schedule a cron job to run at 1:15 p.m. every Friday to report the amount of free disk space on the system and to send the output to a file named "freespace". Which of the following would meet this requirement?
- A. 15 13 * * 5 df > /freespace
- B. 15 1 * * 6 df > /freespace
- C. 15 13 6 * * df > /freespace
- D. 13 15 * * 5 df > /freespace
Answer: D
NEW QUESTION 156
An administrator needs to mount the shared NFS file system testhost:/testvolume to mount point /mnt/testvol and make the mount persistent after reboot.
Which of the following BEST demonstrates the commands necessary to accomplish this task?
- A. B.
- B. C.
- C. B.
Answer: B
NEW QUESTION 157
A new video card was added to a customer workstation. To get the new video card to work correctly, a systems administrator needs to remove support for the nouveau video driver on the Linux workstation.
Which of the following will accomplish this task?
- A. Add blacklist nouveau to /etc/modprobe.conf.
- B. Add blacklist nouveau to /etc/modprobe.d/blacklist.conf.
- C. Use rmmod -f nouveau.
- D. Use modprobe -R nouveau.
Answer: C
NEW QUESTION 158
A company wants to ensure that all newly created files can be modified only by their owners and that all new directory content can be changed only by the creator of the directory. Which of the following commands will help achieve this task?
- A. chmod -R 0755 /
- B. umask 0022
- C. chmod -R 0644 /
- D. umask 0012
Answer: B
Explanation:
Explanation
Explanation/Reference: https://www.computerhope.com/unix/uumask.htm
NEW QUESTION 159
A Linux administrator is using a Linux system as a router. During the tests, the administrator discovers that IP packets are not being sent between the configured interfaces.
Which of the following commands enables this feature for IPv4 networks?
- A. echo "1" > /proc/sys/net/ipv4/ip_route
- B. echo "1" > /proc/sys/net/ipv4/ip_net
- C. echo "1" > /proc/sys/net/ipv4/ip_forward
- D. cat /proc/sys/net/ipv4/ip_route > 1
Answer: C
NEW QUESTION 160
A systems administrator is receiving errors while trying to install a popular virtualization software. The software specifications state the processor needs to support virtualization with Intel instructions. Additional requirements state the processor must accelerate encryption/decryption and use hyperthreading. Given the following output about the processor:
fpu ume depse tsu msr pae mce cx8 apic sep mtrr pae mca cmov pat pse36 cflusm mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt aes xsave avx rdrand hypervisor lahf_lm fsgsbase Which of the following is the MOST likely reason for the errors?
- A. The processor supports AMD instructions rather than Intel.
- B. The processor does not support hyperthreading.
- C. The processor cannot accelerate decryption.
- D. The processor is running inside a virtual machine.
Answer: B
NEW QUESTION 161
An administrator wants to know the amount of memory installed on a Linux server. Which of the following commands can be used to accomplish this task?
- A. cat /sys/proc/meminfo
- B. cat /proc/meminfo
- C. cat /proc/sys/meminfo
- D. cat /sys/meminfo
Answer: D
Explanation:
Explanation/Reference: https://devconnected.com/how-to-check-ram-on-linux/#:~:text=The%20most%20popular%
20command%20in,use%20the%20"free"%20command.&text=As%20you%20can%20see%2C%20the,(also%
20called%20virtual%20memory)
NEW QUESTION 162
Which of the following server roles utilize a heartbeat/polling process? (Choose two.)
- A. Load balancer
- B. Proxy
- C. Logging
- D. Cluster
- E. File server
- F. Certificate authority
Answer: A,D
NEW QUESTION 163
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 a single-user mode and reset the password by editing the /etc/shadowfile.
- B. Boot into a single-user mode and reset the password via the passwdcommand.
- C. Boot into a single-user mode and reset the password via the chagecommand.
- D. Boot into a single-user mode and reset the password by editing the /etc/passwdfile.
Answer: B
Explanation:
Explanation/Reference: https://phoenixnap.com/kb/how-to-change-root-password-linux
NEW QUESTION 164
An administrator needs to look at a log for an application on a systemd-based system. There is no log for this application in /var/log. Which of the following is another way to view the application log on this system?
- A. systemctl application.service
- B. tail -f /var/log/secure
- C. journalctl -u application
- D. watch /var/lib/application/
Answer: A
NEW QUESTION 165
A systems administrator is implementing disk quotas on /home. During the process, the administrator receives the following error:
Cannot find filesystem to check or filesystem not mounted with user quota option.
Which of the following is the correct order of steps the administrator should follow to resolve this error?
- A. 1. Assign user quota policies.
2. Verify if /home has quotas enabled in /etc/fstab and, if not, enable it.
3. Create the quota database files and generate the disk usage table.
4. Remount /home. - B. 1. Verify if /home has quotas enabled in /etc/fstab and, if not, enable it.
2. Remount /home.
3. Create the quota database files and generate the disk usage table.
4. Assign user quota policies. - C. 1. Create the quota database files and generate the disk usage table.
2. Verify if /home has quotas enabled in /etc/fstab and, if not, enable it.
3. Remount /home.
4. Assign user quota policies. - D. 1. Verify if /home has quotas enabled in /etc/fstab and, if not, enable it.
2. Create the quota database files and generate the disk usage table.
3. Remount /home.
4. Assign user quota policies.
Answer: B
Explanation:
Reference:
25954/
NEW QUESTION 166
A junior Linux administrator is installing patches using YUM. The administrator issues the following command:
yum list installed
The output of the command is as follows:
Given this scenario and the output, which of the following should the administrator do to address this issue?
- A. top | grep yum
- B. ps -ef | grep yum
- C. renice -n 9 -p 5180
- D. killall yum
Answer: B
NEW QUESTION 167
An administrator is logged into a server remotely and wants to determine if the system is a VM. Which of the following commands would assist with this?
- A. ps
- B. top
- C. dmesg
- D. vmstat
Answer: D
Explanation:
Explanation/Reference: https://ostechnix.com/check-linux-system-physical-virtual-machine/
NEW QUESTION 168
A system administrator has set up third-party log aggregation agents across several cloud instances. The systems administrator wants to create a dashboard of failed SSH attempts and the usernames used.
Which of the following files should be watched by the agents?
- A. /etc/rsyslog.conf
- B. /var/log/kern.log
- C. /var/log/audit/audit.log
- D. /var/log/monitor
Answer: A
NEW QUESTION 169
A Linux administrator is testing a new web application on a local laptop and consistently shows the following
403 errors in the laptop's logs"
The web server starts properly, but an error is generated in the audit log. Which of the following settings should be enabled to prevent this audit message?
- A. httpd_enable_cgi = 1
- B. httpd_can_network_connect = 1
- C. httpd_enable_homedirs = 1
- D. httpd_enable_scripting = 1
Answer: B
NEW QUESTION 170
A Linux administrator wants to fetch a Git repository from a remote Git server.
Which of the following is the BEST command to perform this task?
- A. git config
- B. git clone
- C. git merge
- D. git checkout
Answer: B
Explanation:
Reference:
https://git-scm.com/book/en/v2/Git-Basics-Working-with-Remotes
NEW QUESTION 171
A systems administrator needs to connect to a remote Linux machine to run system updates from within a graphical interface. Which of the following should the administrator use?
- A. Unity
- B. MATE
- C. VNC
- D. Wayland
Answer: C
NEW QUESTION 172
An administrator is reviewing suspicious activity on a server and needs to determine which users logged into the system within the past 24 hours. Which of the following commands should the administrator run to determine this?
- A. who
- B. usermod
- C. last
- D. id
Answer: A
NEW QUESTION 173
A Linux administrator is testing a new web application on a local laptop and consistently shows the following
403 errors in the laptop's logs"
The web server starts properly, but an error is generated in the audit log. Which of the following settings should be enabled to prevent this audit message?
- A. httpd_enable_cgi = 1
- B. httpd_can_network_connect = 1
- C. httpd_enable_homedirs = 1
- D. httpd_enable_scripting = 1
Answer: B
NEW QUESTION 174
......
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?
For more info visit:
CompTIA XK0-004 Exam Reference
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