Online XK0-005 Exam Dumps Help You Build Confidence

1. An administrator needs to get network information from a group of statically assigned workstations before they are reconnected to the network.

Which of the following should the administrator use to obtain this information?

2. A Linux systems administrator wants to validate the network interfaces configuration and status on a Linux server.

Which of the following commands should the administrator use to display the information for interface eth3 including status, IP address, subnet mask, and configuration?

3. An application requires a configuration file be placed in each user's home directory when an account is created.

In which of the following locations should the administrator place the configuration file?

4. A Linux administrator needs to create a symlink for /usr/local/bin/app-a, which was installed in /usr/local/share/app-a.

Which of the following commands should the administrator use?

5. A web application that uses a database for managing logins needs to be set up so that the database is running before the web server starts.

A Linux administrator, who is troubleshooting the issue, reviews systemd unit files:





Which of the following should the Linux administrator do to ensure the database starts first?

6. Ann, a security administrator, is performing home directory audits on a Linux server. Ann issues the su Joe command and then issues the Is command. The output displays files that reside in Ann's home directory instead of Joe's.

Which of the following represents the command Ann should have issued in order to list Joe's files?

7. A Linux administrator provisioned a new web server with custom administrative permissions for certain users. The administrator receives a report that user1 is unable to restart the Apache web service on this server. The administrator reviews the following output: [ root@server ] # id user1

UID=1011 (user1) gid=1011 (USER1) groups=1011 (user1), 101 (www-data), 1120 (webadmin) [ root@server ] # cat /etc/sudoers.d/custom.conf

user1 ALL=/usr/sbin/systemctl start httpd, /usr/sbin/systemctl stop httpd

webadmin ALL=NOPASSWD: /etc/init.d.httpd restart, /sbin/service httpd restart,

/usr/sbin/apache2ctl restart

#%wheel ALL=(ALL) NOPASSWD: ALL

Which of the following would most likely resolve the issue while maintaining a least privilege security model?

8. A diagnostic tool reports a "host seems down" event for a server with an IP address of 192.168.47.44.

Which of the following commands should the administrator use to confirm the host down event?

9. A Linux system is failing to boot with the following error:





Which of the following actions will resolve this issue? (Choose two.)

10. A DevOps engineer wants to work on a snapshot of the infrastructure as code configuration.

Which of the following commands should the engineer use to accomplish this task?

11. A Linux administrator is configuring crontab and needs to schedule a task to run only on Saturday and Sunday at 9:00 a.m. every week of the year.

Which of the following should the administrator use?

12. A systems administrator is tasked with configuring a repository on an RPM-based Linux system.

Which of the following need to be reviewed and modified? (Select two).

13. A systems administrator needs to check if the service systemd-resolved.service is running without any errors.

Which of the following commands will show this information?

14. A Linux administrator is reviewing changes to a configuration file that includes the following section:





The Linux administrator is trying to select the appropriate syntax formatter to correct any issues with the configuration file.

Which of the following should the syntax formatter support to meet this goal?

15. A systems administrator is troubleshooting connectivity issues and trying to find out why a Linux server is not able to reach other servers on the same subnet it is connected to.

When listing link parameters, the following is presented:





Based on the output above, which of following is the MOST probable cause of the issue?

16. A Linux administrator modified the SSH configuration file.

Which of the following commands should be used to apply the configuration changes?

17. A systems administrator receives reports that several virtual machines in a host are responding slower than expected.

Upon further investigation, the administrator obtains the following output from one of the affected systems:





Which of the following best explains the reported issue?

18. A Linux administrator has physically added a new RAID adapter to a system.

Which of the following commands should the Linux administrator run to confirm that the device has been recognized? (Select TWO).

19. A user is unable to log on to a Linux workstation.

The systems administrator executes the following command:

cat /etc/shadow | grep user1

The command results in the following output:

user1 :! $6$QERgAsdvojadv4asdvaarC/9dj34GdafGVaregmkdsfa:18875:0:99999:7 :::

Which of the following should the systems administrator execute to fix the issue?

20. When trying to log in remotely to a server, a user receives the following message:





The server administrator is investigating the issue on the server and receives the following outputs:





Which of the following is causing the issue?

21. Which of the following directories is the mount point in a UEFI system?

22. SIMULATION

A senior administrator has placed a private key for user admin in your home directory.

The server you need to remotely access is server1 and SSH is listening on port 2222.



INSTRUCTIONS

Part 1

Review the command output and build the correct command to place the private key into your SSH folder.

Part 2

Review the command output and build the correct command to set the file permissions.

Part 3

Review the command output and build the correct command to set the correct ownership.

In each part, click on objects to build a complete command. Command objects may be used more than once, but not all will be used. Use _ as the spacebar. Click the arrow to remove any unwanted objects from your command.

Part 4

Select the proper file to edit for remote server access. Then, build the correct configuration output based on the server name, ports, and files.

23. An administrator deployed a Linux server that is running a web application on port 6379/tcp.

SELinux is in enforcing mode based on organization policies.

The port is open on the firewall.

Users who are trying to connect to a local instance of the web application receive Error 13, Permission denied.

The administrator ran some commands that resulted in the following output:





Which of the following commands should be used to resolve the issue?

24. A systems administrator received a report about issues with a Linux system

Given the following output:





Which of the following is the best command to use to fix this issue?

25. A systems administrator is receiving tickets from users who cannot reach the application app that should be listening on port 9443/tcp on a Linux server.

To troubleshoot the issue, the systems administrator runs netstat and receives the following output:





Based on the information above, which of the following is causing the issue?

26. A systems administrator wants to leverage their password-protected SSH key to connect to multiple servers without entering their password every time.

Which of the following commands should the administrator use?

27. A Linux administrator wants to display a list of all containers, including ones that are stopped.

Which of the following commands should the administrator run?

28. A systems administrator needs to create a new service unit file. This new unit file is required to start when all services are running with the command-line interface only.

Which of the following options should the administrator use to accomplish this task?

29. A systems administrator needs to remove a disk from a Linux server. The disk size is 500G, and it is the only one that size on that machine.

Which of the following commands can the administrator use to find the corresponding device name?

30. A Linux administrator needs to create a new cloud.cpio archive containing all the files from the current directory.

Which of the following commands can help to accomplish this task?

31. Joe, a user, is unable to log in to the system.

The Linux administrator checks the /etc/passwd file and reviews the following output:

Joe:x:1002:1002::/home/Joe:/sbin/nologin

Which of the following should the administrator do to fix this issue?

32. A Linux administrator has defined a systemd script docker-repository.mount to mount a volume for use by the Docker service. The administrator wants to ensure that the Docker service does not start until the volume is mounted.

Which of the following configurations needs to be added to the Docker service definition to best accomplish this task?

33. A Linux administrator is working on a system and notices that some of the packages are not at the latest version.

Which of the following commands should the administrator use to correct this issue?

34. Which of the following can be used as a secure way to access a remote termi-nal?

35. An administrator thinks that a package was installed using a snap.

Which of the following commands can the administrator use to verify this information?

36. An administrator accidentally installed the httpd RPM package along with several dependencies.

Which of the following options is the best way for the administrator to revert the package installation?

37. A network administrator issues the dig www.foo.com command and receives an NXDOMAIN response.

Which of the following files should the administrator check first?

38. Following the migration from a disaster recovery site, a systems administrator wants a server to require a user to change credentials at initial login.

Which of the following commands should be used to ensure the aging attribute?

39. A network administrator issues the dig www.comptia.org command and receives an NXDOMAIN response.

Which of the following files should the administrator check first?

40. A Linux systems administrator needs to persistently enable IPv4 forwarding in one of the Linux systems.

Which of the following commands can be used together to accomplish this task? (Choose two.)

41. Which of the following best describes JSON?

42. An administrator is running a web server in a container named WEB, but none of the error output is showing.

Which of the following should the administrator use to generate the errors on the container?

43. A systems administrator needs to validate that the dm_multipath driver was loaded in a Linux system.

Which of the following commands should the administrator use?

44. An administrator needs to allow remote administrative access to a Linux server only to employees who are using the authorized private key.

Which of the following options should the administrator set in the SSHD configuration file to achieve the goal?

45. A Linux user is trying to execute commands with sudo but is receiving the following error:

$ sudo visudo

>>> /etc/sudoers: syntax error near line 28 <<<

sudo: parse error in /etc/sudoers near line 28

sudo: no valid sudoers sources found, quitting The following output is provided:

# grep root /etc/shadow root :* LOCK *: 14600 ::::::

Which of the following actions will resolve this issue?

46. A Linux administrator was tasked with deleting all files and directories with names that are contained in the sobelete.txt file.

Which of the following commands will accomplish this task?

47. A Linux administrator needs to list the packages that are currently installed on a server.

Which of the following commands should the administrator use?

48. A file called testfile has both uppercase and lowercase letters:

$ cat testfile

ABCDEfgH

IJKLmnoPQ

abcdefgH

ijklLMNopq

A Linux administrator is tasked with converting testfile into all uppercase and writing it to a new file with the name uppercase.

Which of the following commands will achieve this task?

49. An administrator is provisioning an Apache web server. When the administrator visits the server website, the browser displays a message indicating the website cannot be reached.

Which of the following commands should the administrator use to verify whether the service Is running?

50. A Linux administrator intends to start using KVM on a Linux server.

Which of the following commands will allow the administrator to load the KVM module as well as any related dependencies?

51. A systems administrator has been unable to terminate a process.

Which of the following should the administrator use to forcibly stop the process?

52. During a security scan, the password of an SSH key file appeared to be too weak and was cracked.

Which of the following commands would allow a user to choose a stronger password and set it on the existing SSH key file?

53. The users of a Linux system are unable to use one of the application filesystems.

The following outputs have been provided:

bash

$ cd /app

$ touch file

touch: cannot touch 'file': Readonly file system

Output 2

/dev/sdcl on /app type ext4 (ro,relatime,seclabel,data=ordered)

Output 3

/dev/sdcl /app ext4 defaults 0 0

Output 4

[302.048075] Buffer I/O error on dev sdcl, logical block 0, async page read

[302.048490] EXT4-fs (sdcl): Attempt to read block from filesystem resulted in short read while trying to re-open /dev/sdcl

Which of the following actions will resolve this issue?

54. A Linux administrator needs to harden a system and guarantee that the Postfix service will not run, even after a restart or system upgrade.

Which of the following commands allows the administrator to fulfill the requirement?

55. A systems administrator is investigating why one of the servers has stopped connecting to the internet.





Which of the following is causing the issue?

56. User1 is a member of the accounting group. Members of this group need to be able to execute but not make changes to a script maintained by User2. The script should not be accessible to other users or groups.

Which of the following will give proper access to the script?

57. 30 0.01 0.29 50.38 4.00 19.01

Device: tps MB_read/s MB_wrtn/s MB_read MB_wrtn

sdd 15.65 0.48 0.83 4936250 8513501

# df -h

Filesystem Size Used Avail Use% Mounted on

devtmpfs 16G 0 16G 0% /dev

tmpfs 16G 64K 16G 1% /dev/shm

/dev/mapper/root 35G 8.8G 26G 26% /

/dev/sda2 497M 144M 354M 29% /boot

/dev/mapper/tmp 10G 38M 10G 1% /tmp

/dev/mapper/var 15G 13G 2.2G 86% /var

/dev/mapper/varlib 650G 397G 254G 62% /var/lib

/dev/mapper/varlog 15G 9.5G 5.5G 64% /var/log

/dev/mapper/varaudit 15G 72M 15G 1% /var/log/audit

Which of the following is most likely the issue?

58. Which of the following tools is commonly used for creating CI/CD pipelines?

59. A systems administrator needs to compress log files using the .tar.bz2 format.

Which of the following commands should the administrator use?

60. A systems administrator needs to know the mail exchange (MX) record for the foo.com domain.

Which of the following commands will accomplish this task?

61. Users report issues when trying to securely connect to a web server.

The systems administrator receives the following outputs:

bash

firewall-cmd --list-all

(Only ports for ssh, cockpit, dhcp-client are listed.)

netstat -an | grep LISTEN

tcp 0 0 0.0.0.0:443 ... LISTEN

Which of the following actions will fix this issue?

62. A Linux administrator wants a permission bit on a shared folder that allows only the owner of the file within that directory or the root user to delete or rename the file.

Which of the following commands will help achieve this goal?

63. Based on an organization’s new cybersecurity policies, an administrator has been instructed to ensure that, by default, all new users and groups that are created fall within the specified values below.





To which of the following configuration files will the required changes need to be made?

64. A systems administrator created a user cron to run a scheduled database backup cronjob on the server at 1 a.m. every day.

The following is the cronjob syntax:

0 1 * * * /bin/sh backup.sh

The backups, however, are not being created.

When checking the crontab file, the administrator sees the following error:

/var/spool/cron/crontab/cron: Permission denied

Which of the following will permit the cronjob to execute?

65. Users have been unable to save documents to /home/tmp/temp and have been receiving the following error:

Path not found

A junior technician checks the locations and sees that /home/tmp/tempa was accidentally created instead of /home/tmp/temp.

Which of the following commands should the technician use to fix this issue?

66. Which of the following is the best tool for dynamic tuning of kernel parameters?

67. A Linux administrator would like to measure possible packet loss between a workstation and a remote web application that is running on port 443.

Which of the following would be the best command for the administrator to use to display this information?

68. A Linux engineer finds multiple failed login entries in the security log file for application users. The Linux engineer performs a security audit and discovers a security issue.

Given the following:

# grep -iE '*www*|db' /etc/passwd

www-data:x:502:502:www-data:/var/www:/bin/bash

db:x: 505:505:db: /opt/db:/bin/bash

Which of the following commands would resolve the security issue?

69. A Linux administrator is troubleshooting SSH connection issues from one of the workstations.

When users attempt to log in from the workstation to a server with the IP address 104.21.75.76, they receive the following message:





The administrator reviews the information below:









Which of the following is causing the connectivity issue?

70. Due to low disk space, a Linux administrator finding and removing all log files that were modified more than 180 days ago.

Which of the following commands will accomplish this task?

71. A systems administrator created a new directory with specific permissions.

Given the following output:

# file: comptia

# owner: root

# group: root user: : rwx group :: r-x other: :---

default:user :: rwx

default:group :: r-x

default:group:wheel: rwx

default:mask :: rwx

default:other ::-

Which of the following permissions are enforced on /comptia?

72. A systems administrator is configuring a Linux system so the network traffic from the internal network 172.17.0.0/16 going out through the eth0 interface would appear as if it was sent directly from this interface.

Which of the following commands will accomplish this task?

73. A systems administrator receives reports of issues in one of the Linux systems.

The following output has been provided:

$ dig node.mycomptia.org

; <<>> DiG 9.11.36.x.x <<>> node.mycomptia.org ;; global options: +cmd

;; connection timed out; no servers could be reached

$ cat /etc/resolv.conf

search mycomptia.org

Which of the following actions will best resolve this issue? (Select two.)

74. A user generated a pair of private-public keys on a workstation.

Which of the following commands will allow the user to upload the public key to a remote server and enable passwordless login?

75. SIMULATION

Junior system administrator had trouble installing and running an Apache web server on a Linux server. You have been tasked with installing the Apache web server on the Linux server and resolving the issue that prevented the junior administrator from running Apache.



INSTRUCTIONS

Install Apache and start the service. Verify that the Apache service is running with the defaults.

Typing “help” in the terminal will show a list of relevant event commands.

If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

76. A systems administrator is creating new user accounts on several Linux machines and wants to automate the process from a Linux system used for operations. In this operations system, the list of servers is located in the /home/user/serverslist file and the list of user accounts is located in the /home/user/userslist file.

Which of the following scripts will help accomplish this task?

77. A Linux administrator needs to forward port 8000 on a remote server to port 8000 on a local server.

Which of the following commands should the administrator run on the local server to achieve this goal?

78. A systems administrator wants to check for running containers.

Which of the following commands can be used to show this information?

79. 0.6.5 IP address.

Which of the following commands should the administrator run on the server to achieve the goal?

80. A new disk was presented to a server as /dev/ sdd. The systems administrator needs to check if a

partition table is on that disk.

Which of the following commands can show this information?

81. A systems administrator is tasked with installing GRUB on the legacy MBR of the SATA hard drive.

Which of the following commands will help the administrator accomplish this task?

82. A Linux system is failing to boot. The following error is displayed in the serial console:

[[1;33mDEPEND[Om] Dependency failed for /data.

[[1;33mDEPEND[Om] Dependency failed for Local File Systems

...

Welcome to emergency mode! After logging in, type "journalctl -xb" to viewsystem logs, "systemct1 reboot" to reboot, "systemct1 default" to try again to boot into default mode. Give root password for maintenance (or type Control-D to continue}

Which of the following files will need to be modified for this server to be able to boot again?

83. What is the main objective when using Application Control?

84. A Linux administrator is configuring a two-node cluster and needs to be able to connect the nodes to each other using SSH keys from the root account.

Which of the following commands will accomplish this task?

85. Users report that they cannot access some files located in the /opt/finapp directory after a power outage caused an unexpected server restart.

A Linux administrator examines the following filesystem details and system logs:

# mount | grep finapp

/dev/mapper/rhel-opt_finapp on /opt/finapp type xfs

(rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)

# lsblk

NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT

sda 8:0 0 931.5G 0 disk

├─sda1 8:1 0 1G 0 part /boot

└─sda2 8:2 0 930.5G 0 part

├─rhel-root 253:0 0 30.5G 0 lvm /

└─rhel-opt_finapp 253:1 0 900G 0 lvm /opt/finapp

# grep opt_finapp /var/log/messages

XFS (opt_finapp): Corruption detected in inode 3645, extent tree

Which of the following commands should the administrator run in an attempt to fix the filesystem?

86. 1.An administrator accidentally deleted the /boot/vmlinuz file and must resolve the issue before the server is rebooted.

Which of the following commands should the administrator use to identify the correct version of this file?

87. Which of the following command sequences is used to install Linux software directly from source code?

88. A Linux administrator needs to create a symlink for /usr/local/bin/app-a, which was installed in /usr/local/share/app-a.

Which of the following commands should the administrator use?

89. An administrator has generated an RSA SSH key pair to log in to a remote server. After copying the public key and attempting to log in, the administrator sees the following message: [email protected]: Permission denied (publickey,password)

After seeing the message, the administrator attempts to connect using ssh -v [email protected] and notices the following debug output:

debug1: send_pubkey_test: no mutual signature algorithm

Which of the following actions should the administrator take first to remediate this issue?

90. A Linux administrator needs to correct the permissions of a log file on the server.

Which of the following commands should be used to set filename.log permissions to -rwxr―r--. ?

91. An organization's business office needs to collaborate on quarterly reports and asks the systems administrator to create a finance group. The administrator creates the following directory: drwxrwxr-x business business 4096 Oct 15 16:40 q1

Which of the following commands will allow all members of the finance group to have group ownership of all files created in the q1 directory while ensuring that members of the business group preserve access? (Select two)

92. A systems administrator made some unapproved changes prior to leaving the company. The newly hired administrator has been tasked with revealing the system to a compliant state.

Which of the following commands will list and remove the correspondent packages?

93. A Linux engineer wants to give read-write-execute permissions for the cloud_users directory to user Oliver.

Which of the following commands should the engineer use?

94. A Linux system is getting an error indicating the root filesystem is full.

Which of the following commands should be used by the systems administrator to resolve this issue? (Choose three.)

95. A Linux engineer needs to create a custom script, cleanup.sh, to run at boot as part of the system services.

Which of the following processes would accomplish this task?

96. Which of the following would significantly help to reduce data loss if more than one drive fails at the same time?

97. A Linux administrator created the directory /project/access2all. By creating this directory, the administrator is trying to avoid the deletion or modification of files from non-owners.

Which of the following will accomplish this goal?

98. A systems administrator wants to ensure all the latest patches and updates are automatically synced to the local repository every two hours on Sundays through Tuesdays in the month of May.

Which of the following cron entries can the administrator use to achieve this goal? (Select two)

99. A systems technician needs to install a third-party software package.

Which of the following commands would allow the technician to download this software package from a remote server?

100. A systems administrator made some changes in the ~/.bashrc file and added an alias command. When the administrator tried to use the alias command, it did not work.

Which of the following should be executed FIRST?

101. A systems administrator is tasked with changing the default shell of a system account in order to disable iterative logins.

Which of the following is the best option for the administrator to use as the new shell?

102. A systems administrator created a new Docker image called test. After building the image, the administrator forgot to version the release.

Which of the following will allow the administrator to assign the v1 version to the image?

103. A cloud engineer needs to block the IP address 192.168.10.50 from accessing a Linux server.

Which of the following commands will achieve this goal?

104. A systems administrator installed a new software program on a Linux server.

When the systems administrator tries to run the program, the following message appears on the screen.





Which of the following commands will allow the systems administrator to check whether the system supports virtualization?

105. The administrator comptia is not able to perform privileged functions on a newly deployed system.

Given the following command outputs:





Which of the following is the reason that the administrator is unable to perform the assigned duties?

A. The administrator needs a password reset.

B. The administrator is not a part of the correct group.

C. The administrator did not update the sudo database.

D. The administrator's credentials need to be more complex.

106. A systems administrator is reviewing the following output on the text editor that is being used to update the company's internal database records:





Which of the following extensions should the systems administrator use when saving the file?

107. A systems administrator is compressing old log files in order to save space.

Which of the following commands will allow the administrator to save the most space?

108. A Linux administrator needs to determine whether a hostname is in the DNS.

Which of the following would supply the information that is needed?

109. A Linux administrator was asked to run a container with the httpd server inside. This container should be exposed at port 443 of a Linux host machine while it internally listens on port 8443.

Which of the following commands will accomplish this task?

110. A systems administrator pressed Ctrl+Z after starting a program using the command line, and the shell prompt was presented.

In order to go back to the program, which of the following commands can the administrator use?

111. A systems administrator frequently connects to a remote host via SSH and a non-standard port. The systems administrator would like to avoid passing the port parameter on the command line every time.

Which of the following files can be used to set a different port value for that host?

112. An administrator completes maintenance on a server but cannot remount the logical volume.

Given the following output:

# mount /dev/data/files /opt/data/

mount: /opt/data: special device /dev/data/files does not exist.

# lvs

LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert

files data -wi-a------ 600.00m

# vgs

VG #PV #LV #SN Attr VSize VFree

data 1 1 0 wz―n- 1020.00m 420.00m

Which of the following commands should the administrator execute to resolve the issue?

113. A Linux engineer set up two local DNS servers (10.10.10.10 and 10.10.10.20) and was testing email connectivity to the local mail server using the mail command on a local machine when the following error appeared:





The local machine DNS settings are:





Which of the following commands could the engineer use to query the DNS server to get mail server information?

114. A cloud engineer is installing packages during VM provisioning.

Which of the following should the engineer use to accomplish this task?

115. A developer reported an incident involving the application configuration file /etc/httpd/conf/httpd.conf that is missing from the server.

Which of the following identifies the RPM package that installed the configuration file?

116. A user is attempting to log in to a Linux server that has Kerberos SSO ena-bled.

Which of the following commands should the user run to authenticate and then show the ticket grants? (Select TWO).

117. After system startup, the X Window System GUI login interface is not displaying.

Which of the following commands ensures that the GUI is started during the system startup process?

118. A Linux administrator deployed a large-scale application service as a containerized pod. The Linux administrator needs to continually send the application's log file to the company’s central log store.

Which of the following should the Linux administrator do to efficiently perform this task?

119. A Linux engineer needs to get information from the foo.com domain mail servers.

Which of the following network tools should the engineer use?

A. arp mx foo.com

B. nc mx foo.com

C. dig mx foo.com

D. route mx foo.com

120. A systems administrator receives the following message after running an ip link command to verify the status of a network interface named enp0s3:

state DOWN

Which of the following commands should the administrator use to resolve this issue?

121. A cloud engineer wants to delete all unused networks that are not referenced by any container.

Which of the following commands will achieve this goal?

122. Which of the following Git commands would send committed changes to a remote repository?

123. A Linux administrator is troubleshooting a memory-related issue.

Based on the output of the commands:





Which of the following commands would address the issue?

124. Which of the following specifications is used to perform disk encryption in a Linux system?

125. A User on a Linux workstation needs to remotely start an application on a Linux server and then forward the graphical display of that application back to the Linux workstation.

Which of the following would enable the user to perform this action?

126. Which of the following commands will display the operating system?

127. A Linux engineer receives the following notification from a system:

cp: cannot create regular file '/app/appdata.tar*': No space left on device

The engineer obtains the following output:

Which of the following describes the state of the filesystem based on this output?

128. A Linux systems administrator receives a report that a user is unable to start an application.

The administrator reviews the following error:

yaml

CopyEdit

Killed process 1141 (application) ... total-vm:5622584kB ... oom_score_adj:0 oom_reaper: reaped process 1141 ...

Which of the following describes the situation?

129. Which of the following paths stores the configuration files in a Linux filesystem?

130. Users are reporting that a production application has slow performance. A systems administrator logs in to the server and performs some basic checks.

Given the following:

yaml

[root@comptia]# ps -o pcpu; pidstat 1

Average: UID PID %usr %system %wait %CPU Command

Average: 0 937242 32.39 0 63.21 32.39 app_prd

Average: 0 937245 44.97 0.31 51.57 45.28 app_prd

Average: 0 937244 23.62 0 63.55 28.62 app_prd

[root@comptia]# vmstat 1

procs memory swap io system cpu

r b swpd free buff cache si so bi bo in cs us sy id wa st

16 0 978912 376320 50804 10296312 0 0 0 44 5503 2962 98 2 0 0 0

[root@comptia]# free -m

total used free shared buff/cache available

Mem: 15533 5063 365 164 10104 9975

Swap: 7931 955 6976

Which of the following is causing the performance issue?

131. An administrator runs ping comptia.org.

The result of the command is:

ping: comptia.org: Name or service not known

Which of the following files should the administrator verify?

132. An administrator made a change to a system’s network configuration.

Which of the following best represents what the administrator should do to have the new configuration take effect?

133. A Linux administrator cloned an existing Linux server and built a new server from that clone.

The administrator encountered the following error after booting the cloned server:





The administrator performed the commands listed below to further troubleshoot and mount the missing filesystem:





Which of the following should administrator use to resolve the device mismatch issue and mount the disk?

134. A Linux administrator is troubleshooting the root cause of a high CPU load and average.





Which of the following commands will permanently resolve the issue?

135. Which of the following options describes the purpose of YAML?

136. A systems administrator needs to install the file installer_0.17-41.2_amd64.deb.

Which of the following commands should the administrator use?

137. A Linux system fails to start and delivers the following error message:





Which of the following commands can be used to address this issue?

138. A systems administrator is implementing a new service task with systems at startup and needs to execute a script entitled test.sh with the following content:





The administrator tries to run the script after making it executable with chmod +x; however, the script will not run.

Which of the following should the administrator do to address this issue? (Choose two.)

139. A systems administrator has been tasked with disabling the nginx service from the environment to prevent it from being automatically and manually started.

Which of the following commands will accomplish this task?

140. A systems administrator is tasked with creating an Ansible playbook to automate the installation of patches on several Linux systems.

In which of the following languages should the playbook be written?

141. A user reported issues when trying to log in to a Linux server.

The following outputs were received: Given the outputs above.

Which of the following is the reason the user is unable to log in to the server?

142. A cloud engineer needs to change the secure remote login port from 22 to 49000.

Which of the following files should the engineer modify to change the port number to the desired value?

143. A junior administrator updated the PostgreSQL service unit file per the data-base administrator's recommendation. The service has been restarted, but changes have not been applied.

Which of the following should the administrator run for the changes to take effect?