What Download XK0-004 Test Questions Is

NEW QUESTION 1
A Linux administrator needs to take stock of USB devices attached to the system. Which of the following commands would be BEST to complete this task?

• A. lspci
• B. lsusb
• C. cat /proc/USB
• D. modprobe -–usb

Answer: B

NEW QUESTION 2
A Linux administrator is testing connectivity to a remote host on a shared terminal. The administrator wants to allow other users to access the terminal while the command is executing.
Which of the following commands should the administrator use?

• A. bg ping remotehost
• B. fg ping remotehost
• C. ping remotehost < results
• D. ping remotehost &

Answer: C

NEW QUESTION 3
A systems administrator configured a new kernel module, but it stopped working after reboot. Which of the following will allow the systems administrator to check for module problems during server startup?

• A. lsmod
• B. modprobe
• C. modinfo
• D. dmesg

Answer: C

NEW QUESTION 4
A systems administrator has finished building a new feature for the monitoring software in a separate Git branch.
Which of the following is the BEST method for adding the new feature to the software’s master branch?

• A. Merge the changes from the feature branch to the master branch.
• B. Save the changes to the master branch automatically with each Git commit.
• C. Clone the feature branch into the master branch.
• D. Pull the changes from the feature branch into the master branch.

Answer: A

NEW QUESTION 5
A technician wants to secure a sensitive workstation by ensuring network traffic is kept within the local subnet. To accomplish this task, the technician executes the following command:
echo 0 > /proc/sys/net/ipv4/ip_default_ttl
Which of the following commands can the technician use to confirm the expected results? (Choose two.)

• A. tcpdump
• B. traceroute
• C. route
• D. iperf
• E. ip
• F. arp

Answer: CF

NEW QUESTION 6
A Linux systems administrator is setting up SSH access with PKI for several using their newly created RSA keys. Which of the following MOST securely achieves this task?

• A. Use curl to copy each user’s public key file to the respective system
• B. Use cp to copy each user’s public key file to the respective system
• C. Use ssh-copy-id to copy each user’s public key file to the respective system
• D. Use ssh-copy-id to copy each user’s private key file to the respective system

Answer: C

NEW QUESTION 7
Joe, a user, is unable to log in to the server and contracts the systems administrator to look into the issue. The administrator examines the /etc/passwd file and discovers the following entry:
joe:x:505:505::/home/joe:/bin/false
Which of the following commands should the administrator execute to resolve the problem?

• A. usermod –s /bin/bash joe
• B. passwd –u joe
• C. useradd –s /bin/bash joe
• D. chage –E -1 joe

Answer: B

NEW QUESTION 8
Which of the following is a difference between YAML and JSON?

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

Answer: A

NEW QUESTION 9
A Linux administrator needs to remotely update the contents of the www.comptia.org/contacts URL.
Which of the following commands would allow the administrator to download the current contents of the URL before updating?

• A. curl www.comptia.org/contacts
• B. dig www.comptia.org/contacts
• C. apt-get www.comptia.org/contacts
• D. yum list www.comptia.org/contacts

Answer: A

NEW QUESTION 10
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. 13 15 * * 5 df > /freespace
• B. 15 13 * * 5 df > /freespace
• C. 15 1 * * 6 df > /freespace
• D. 15 13 6 * * df > /freespace

Answer: A

NEW QUESTION 11
A Linux administrator is using a public cloud provider to host servers for a company’s website. Using the
provider’s tools, the administrator wrote a JSON file to define how to deploy the servers. Which of the following techniques did the administrator use?

• A. Infrastructure as code
• B. Build automation
• C. Platform as a service
• D. Automated configuration

Answer: B

NEW QUESTION 12
After installing a new web server, you are unable to browse to the default web page. INSTRUCTIONS
Review all the command output and select the command needed to remediate the issue.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

• A. Yes
• B. Not Mastered

Answer: A

NEW QUESTION 13
An administrator needs to see a list of the system user’s encrypted passwords. Which of the following Linux files does the administrator need to read?

• A. /etc/shadow
• B. /etc/skel
• C. /etc/passwd
• D. /etc/pw

Answer: C

NEW QUESTION 14
Given the output below:

Which of the following commands can be used to remove MyPhoto.jpg from the current directory?

• A. unlink ./MyPhoto.jpg
• B. del Pictures/photo.jpg
• C. rm –rf ./Pictures
• D. rm –f MyPhoto.jpg
• E. ln –rm ./Pictures/photo.jpg

Answer: E

NEW QUESTION 15
An operator finds a user is having issues with opening certain files.
Which of the following commands would allow the security administrator to list and check the SELinux context?

• A. ls –D
• B. ls –a
• C. ls –Z
• D. ls -1

Answer: C

NEW QUESTION 16
A member of the production group issues the following command:
echo "Monday through Friday" > /production_docs/days
The command fails to execute, so the user obtains the following output: drwxr--r-- root production 0 Jun 16 2018 production
-rw-r--r-- production production 4096 Jun 14 2018 days
Which of the following commands should the user execute to BEST fix the issue?

• A. chmod g+w production to change the permissions of the days file
• B. chgrp root production_docs/days to change the group ownership of the production_docs/ days file
• C. chmod g+S production to set the GUID on the production_docs directory
• D. chown production to change the ownership of the production_docs directory

Answer: D

NEW QUESTION 17
A Linux server has multiple IPs. A Linux administrator needs to verify if the HTTP server port is bound to the correct IP.
Which of the following commands would BEST accomplish this task?

• A. route
• B. host
• C. nslookup
• D. netstat
• E. ip

Answer: D

NEW QUESTION 18
A systems administrator suspects a process with a PID of 2864 is consuming resources at an alarming rate. The administrator uses the command renice -n -5 -p2864, but it does not solve the issue. Which of the
following commands should the administrator execute to correct the issue?

• A. nice -n 5 -p 2864
• B. nice -n -5 -p 2864
• C. renice -n 10 -p 2864
• D. renice -n -10 -p 2864

Answer: D

NEW QUESTION 19
A configuration management tool running every minute is enforcing the service HTTPd to be started. To perform maintenance, which of the following series of commands can be used to prevent the service from being started?

• A. systemctl stop httpd && systemctl mask httpd
• B. systemctl disable httpd && systemctl mask httpd
• C. systemctl stop httpd && systemctl hide httpd
• D. systemctl disable httpd && systemctl hide httpd

Answer: A

NEW QUESTION 20
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