Online XK0-005 Exam Dumps Help You Build Confidence

1. A Linux administrator is scheduling a system job that runs a script to check available disk space every hour. The Linux administrator does not want users to be able to start the job.

Given the following:





The Linux administrator attempts to start the timer service but receives the following error message:





Which of the following is MOST likely the reason the timer will not start?

2. 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.)

3. A Linux engineer needs to block an incoming connection from the IP address 2.2.2.2 to a secure shell server and ensure the originating IP address receives a response that a firewall is blocking the connection.

Which of the following commands can be used to accomplish this task?

4. Application code is stored in Git. Due to security concerns, the DevOps engineer does not want to keep a sensitive configuration file, app. conf, in the repository.

Which of the following should the engineer do to prevent the file from being uploaded to the repository?

A. Run git exclude app. conf.

B. Run git stash app. conf.

C. Add app. conf to. exclude.

D. Add app. conf to. gitignore.

5. An administrator recently updated the BIND software package and would like to review the default configuration that shipped with this version.

Which of the following files should the administrator review?

6. A Linux administrator needs to obtain a list of all volumes that are part of a volume group.

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

7. While inspecting a recently compromised Linux system, the administrator identified a number of processes that should not have been running:





Which of the following commands should the administrator use to terminate all of the identified processes?

8. 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?

9. Which of the following is the main purpose of SSO?

10. 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?

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





Which of the following is causing the issue?

12. 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?

13. 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?

14. 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?

15. A systems engineer deploys a new application server, but the server cannot communicate with the back-end database hostname. The engineer confirms that the application server can ping the database server's IP address.

Which of the following is the most likely cause of the issue?

16. A Linux administrator is implementing a stateful firewall on the Linux server.

Which of the following iptables options will be required to build the stateful rules? (Select two).

17. A systems administrator is receiving complaints about slow performance and system crashes. The administrator suspects memory and CPU issues.

Which of the following is the first action the administrator should take to troubleshoot and resolve these issues?

18. 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?

19. A Linux engineer needs to download a ZIP file and wants to set the nice of value to -10 for this new process.

Which of the following commands will help to accomplish the task?

20. 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?

21. A Linux administrator has installed a web server, a database server, and a web application on a server. The web application should be active in order to render the web pages. After the administrator restarts the server, the website displays the following message in the browser: Error establishing a database connection.

The Linux administrator reviews the following relevant output from the systemd init files:





The administrator needs to ensure that the database is available before the web application is started.

Which of the following should the administrator add to the HTTP server .service file to accomplish this task?

22. Using AD Query, the security gateway connections to the Active Directory Domain Controllers using what protocol?

23. A Linux administrator logs in to a system and identifies that an important backup has been started. The backup process is consuming a considerable amount of CPU time but needs to continue.

Which of the following should the administrator use to reduce the impact this process has on other services?

24. Which of the following commands can be used to manage RPM software packages? (Choose two.

25. A systems administrator is deploying three identical, cloud-based servers.

The administrator is using the following code to complete the task:





Which of the following technologies is the administrator using?

26. An administrator needs to increase the system priority of a process with PID 2274.

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

27. Joe, a user, is unable to log in to the Linux system Given the following output:





Which of the following command would resolve the issue?

28. 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?

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





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

30. A Linux administrator needs to check the content of a log file that is appending data as the file grows.

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

31. A Linux administrator is working with a CPU-intensive program called data-analysis1. The administrator needs to prevent the program from monopolizing CPU resources and ensure that other critical processes are not impacted when the program starts.

Which of the following commands would start the program with a reduced level of impact to the system?

32. A user is asking the systems administrator for assistance with writing a script to verify whether a file exists.

Given the following:





Which of the following commands should replace the string?

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

34. 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?

35. A Linux administrator is creating a directory called CompTIA_doc and needs to switch to another location to perform some system-related tasks.

Which of the following commands should the administrator use for this task?

36. Users in the human resources department are trying to access files in a newly created directory.

Which of the following commands will allow the users access to the files?

37. 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?

38. 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).

39. A Linux administrator is tasked with creating resources using containerization. When deciding how to create this type of deployment, the administrator identifies some key features, including portability, high availability, and scalability in production.

Which of the following should the Linux administrator choose for the new design?

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

41. A systems administrator receives the following errors via email from the system log:

go

XFS (loop0): Metadata CRC error detected at xfs_agi_read_verify+0xcb/0xfe

XFS (loop0): First 128 bytes of corrupted metadata buffer

XFS (loop0): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x2 len 1 error 74

A few minutes later, the administrator starts receiving reports that some of the images in the company's website are not loading properly.

The systems administrator runs some commands and receives the following outputs:

css

Output 1

NAME FSTYPE UUID MOUNTPOINT

sda ext4 02ae47-fe457-45bc /

sdb xfs 347c7056 /var/www/html

Output 2

DocumentRoot "/var/www/html"

Output 3

httpd.service - The Apache HTTP Server

Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)

Active: active (running) since Sun 1991-05-24 16:12:43 UTC; 30y ago

Main PID: 252 (httpd)

Which of the following would be the appropriate steps to take to solve this issue?

42. 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?

43. An administrator is unable to sync servers to the new NTP server IP address given by the service provider despite several attempts.

Looking at the below output





Which of the following commands will help resolve the issue?

A)





B)





C)





D)

44. Which of the following commands is used to configure the default permissions for new files?

45. An administrator wants to copy files from /opt/tools to the home directory at /home/admin.

Which of the following should the administrator run?

46. Which of the following options represents disk mirroring?

47. A Linux administrator is troubleshooting a systemd mount unit file that is not working correctly.

The file contains:

[root@system] # cat mydocs.mount

[Unit]

Description=Mount point for My Documents drive

[Mount]

What=/dev/drv/disk/by-uuid/94afc9b2-ac34-ccff-88ae-297ab3c7ff34

Where=/home/user1/My Documents

Options=defaults

Type=xfs

[Install]

WantedBy=multi-user.target

The administrator verifies the drive UUID correct, and user1 confirms the drive should be mounted as My Documents in the home directory.

Which of the following can the administrator do to fix the issues with mounting the drive? (Select two).

48. 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.)

49. The systemd logs are disappearing after a restart, even though the free disk space is adequate.

Which of the following is the cause of this behavior?

50. A systems administrator is gathering information about a file type and the contents of a file.

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

51. In order to copy data from another VLAN, a systems administrator wants to temporarily assign IP address 10.0.6 5/24 to the newly added network interface enp1s0f1.

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

52. Linux system users report that over the past few months, a server has stopped responding at least twice each day. Every time this happens, the users have to restart the server to recover it.

A systems administrator diagnosing the issue collects the following outputs:

csharp

Output 1

[Tue Aug 31 16:36:42 2021] oom-killer invoked by java: gfp_mask=0x280da2 order=0, oom_score_adj=0

[Tue Aug 31 16:36:42 2021] java cpuset=/ mems_allowed=0

Output 2

[root@server]# free -m

total used free shared buff/cache available

Mem: 15819 15026 174 92 619 134

Swap: 0 0 0

Which of the following is the best permanent resolution for the system?

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

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

54. A Linux administrator is testing a web application on a laboratory service and needs to temporarily allow DNS and HTTP/HTTPS traffic from the internal network.

Which of the following commands will accomplish this task?

55. A DevOps engineer is working on a local copy of a Git repository. The engineer would like to switch from the main branch to the staging branch but notices the staging branch does not exist.

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

56. How would you add a new user account in Linux?

57. The journald entries have filled a Linux machine's /var volume.

Which of the following is the best command for a systems administrator to use to free up the disk space occupied by these entries?

58. 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?

59. A developer is trying to install an application remotely that requires a graphical interface for installation. The developer requested assistance to set up the necessary environment variables along with X11 forwarding in SSH.

Which of the following environment variables must be set in remote shell in order to launch the graphical interface?

60. A Linux administrator is configuring a new internal web server fleet. The web servers are up and running but can only be reached by users directly via IP address. The administrator is attempting to fix this inconvenience by requesting appropriate records from the DNS team.

The details are:

Hostname: devel.comptia.org

IP address: 5.5.5.1, 5.5.5.2, 5.5.5.3, 5.5.5.4

Name server: 5.5.5.254

Additional names: dev.comptia.org, development.comptia.org

Which of the following types of DNS records should the Linux administrator request from the DNS team? (Select three).

61. 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?

62. 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?

63. 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?

64. A security analyst is monitoring the network to identify latency or slowdowns during a vulnerability scan.

Which of the following functions will best achieve this?

bash

function x() {

info=$(ping -c 1 $1 | awk -F "/" 'END {print $5}')

echo "$1 | $info"

}

65. A systems administrator is reconfiguring existing user accounts in a Linux system.

Which of the following commands should the administrator use to include "myuser" in the finance group?

66. An administrator is reviewing the boot logs on a system that is having intermittent issues when trying to access certain directories and files.

The following errors appear in dmesg:

mathematica

CopyEdit

I/O error, dev sda1, sector 456788

Buffer I/O error on device sda1, logical block 378994

Which of the following actions should the administrator take to resolve the issue?

67. A Linux administrator modified the SSH configuration file.

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

68. A Linux administrator needs to run a web application on a server that requires the use of a desktop web browser to enter the final configuration information. The administrator determines the server is running in multi-user mode. The administrator verifies that a web browser is installed on the server and that it has a display manager installed.

Which of the following commands will best allow the administrator to temporarily use the web browser on the server?

69. A systems administrator is configuring a Linux system so that 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?

70. A Linux administrator has logged in to a server for the first time and needs to know which services are allowed through the firewall.

Which of the following options will return the results for which the administrator is looking?

71. A systems administrator identifies multiple processes in a zombie state.

Which of the following signals would be best for the administrator to send to the PPID?

72. After installing a new version of a package, a systems administrator notices a new version of the corresponding, service file was Installed In order to use the new version of the, service file, which of the following commands must be Issued FIRST?

73. A junior systems administrator recently installed an HBA card in one of the servers that is deployed for a production environment.

Which of the following commands can the administrator use to confirm on which server the card was installed?

74. 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?

75. A cloud engineer is asked to copy the file deployment.yaml from a container to the host where the container is running.

Which of the following commands can accomplish this task?

76. A Linux administrator needs to replace the content of the test1.sh file with the content of the test2.sh file.

Which of the following commands will help accomplish this task?

77. A Linux engineer receives reports that files created within a certain group are being modified by users who are not group members. The engineer wants to reconfigure the server so that only file owners and group members can modify new files by default.

Which of the following commands would accomplish this task?

78. A systems administrator is tasked with creating a cloud-based server with a public IP address.





Which of the following technologies did the systems administrator use to complete this task?

79. 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?

80. 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?

81. As part of the requirements for installing a new application, the swappiness parameter needs to be changed to O. This change needs to persist across re-boots and be applied immediately. A Linux systems administrator is performing this change.

Which of the following steps should the administrator complete to accomplish this task?

82. Users are reporting that writes on a system configured with SSD drives have been taking longer than expected, but reads do not seem to be affected. A Linux systems administrator is investigating this issue and working on a solution.

Which of the following should the administrator do to help solve the issue?

83. A Linux administrator is creating a new sudo profile for the accounting user.

Which of the following should be added by the administrator to the sudo configuration file so that the accounting user can run / opt/ acc/ report as root?

A. accounting localhost=/opt/acc/report

B. accounting ALL=/opt/acc/report

C. %accounting ALL=(ALL) NOPASSWD: /opt/acc/report

D. accounting /opt/acc/report= (ALL) NOPASSWD: ALL

84. A Linux administrator needs to connect securely to a remote server in order to install application software.

Which of the following commands would allow this connection?

85. 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?

86. 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?

87. A systems administrator is encountering performance issues.

The administrator runs 3 commands with the following output





The Linux server has the following system properties

CPU: 4 vCPU

Memory: 50GB

Which of the following accurately describes this situation?

88. 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?

89. A systems administrator wants to be sure the sudo rules just added to /etc/sudoers are valid.

Which of the following commands can be used for this task?

90. 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.

91. A systems administrator configured firewall rules using firewalld.

However, after the system is rebooted, the firewall rules are not present:





The systems administrator makes additional checks:





Which of the following is the reason the firewall rules are not active?

92. An application developer received a file with the following content:

##This is a sample Image ##

FROM ubuntu:18.04

MAINTAINER [email protected]

COPY. /app

RUN make /app

CMD python /app/app.py

RUN apt-get update

RUN apt-get install -y nginx

CMD ["echo","Image created"]

The developer must use this information to create a test bed environment and identify the image (myimage) as the first version for testing a new application before moving it to production.

Which of the following commands will accomplish this task?

93. A systems administrator wants to upgrade /bin/ someapp to a new version, but the administrator

does not know the package name.

Which of the following will show the RPM package name that provides that binary file?

94. Users are reporting that a Linux server is responding slowly. A systems administrator troubleshooting the server issue sees the following iostat output, with %iowait at 50.38.

Which of the following is most likely the issue?

95. The applications team is reporting issues when trying to access the web service hosted in a Linux system.

The Linux systems administrator is reviewing the following outputs:

Output 1:

* httpd.service = The Apache HTTPD Server

Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled; vendor preset: disabled)

Active: inactive (dead)

Docs: man:httpd(8) man:apachectl(8)

Output 2:

16:51:16 up 28 min, 1 user, load average: 0.00, 0.00, 0.07

Which of the following statements best describe the root cause? (Select two).

96. A Linux engineer is removing a previously created firewall rule.

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

A. ufw delete 80/tcp

B. ufw delete deny 80/tcp

C. ufw delete 80/tcp deny

D. delete7!

97. 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?

98. 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?

99. A Linux system is having issues.

Given the following outputs:

# dig @192.168.2.2 mycomptiahost

; << >> DiG 9.9.4-RedHat-9.9.4-74.el7_6.1 << >> @192.168.2.2 mycomptiahost

; (1 server found)

;; global options: +cmd

;; connection timed out; no servers could be reached

# nc -v 192.168.2.2 53

Ncat: Version 7.70 ( https://nmap.org/ncat )

Ncat: Connection timed out.

# ping 192.168.2.2

PING 192.168.2.2 (192.168.2.2) 56(84) bytes of data.

64 bytes from 192.168.2.2: icmp_seq=1 ttl=117 time=4.94 ms

64 bytes from 192.168.2.2: icmp_seq=2 ttl=117 time=10.5 ms

Which of the following best describes this issue?

100. A Linux systems administrator is setting up a new web server and getting 404 - NOT FOUND errors while trying to access the web server pages from the browser.

While working on the diagnosis of this issue, the Linux systems administrator executes the following commands:





Which of the following commands will BEST resolve this issue?

101. A systems engineer has deployed a new application server, but the server cannot communicate with the backend database hostname. The engineer confirms that the application server can ping the database server's IP address.

Which of the following is the most likely cause of the issue?

102. A systems administrator is cloning a system partition /dev/sda1 to /dev/sdc1.

Which of the following commands would allow the administrator to accomplish this task most efficiently?

103. 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?

104. The application team is having issues accessing their data in their /app filesystem.

Given the following outputs:





Which of the following is the reason for this issue?

105. A systems administrator is working on an SFTP server configuration.

Which of the following commands will best enable the connectivity to that service from the 10.10.0.0/24 network?

106. A Linux administrator recently downloaded a software package that is currently in a compressed file.

Which of the following commands will extract the files?

107. A hardened physical Linux system allows regular, unprivileged users to remotely connect to the server using SSH only. No sudo tool has been installed.

Which of the following should the Linux administrator use to perform administrative tasks on this host? (Select two).

108. 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?

109. A systems administrator is adding a Linux-based server and removing a Windows-based server from a cloud-based environment. The changes need to be validated before they are applied to the cloud-based environment.

Which of the following tools should be used to meet this requirement?

110. One leg of an LVM-mirrored volume failed due to the underlying physical volume, and a systems administrator is troubleshooting the issue.

The following output has been provided:





Given this scenario, which of the following should the administrator do to recover this volume?

111. An administrator wants to execute a long-running script in the terminal while troubleshooting another issue.

Which of the following options will achieve this goal?

112. A systems administrator is checking the system logs. The administrator wants to look at the last 20 lines of a log.

Which of the following will execute the command?

113. Rugged appliances are small appliances with ruggedized hardware and like Quantum Spark appliance they use which operating system?

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

115. 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?

116. A Linux administrator wants to prevent the httpd web service from being started both manually and automatically on a server.

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

117. A Linux administrator needs to restart a server and wants to see if any users are currently connected to it.

Which of the following commands should the administrator run to find this information?

118. A user (userA) has reported issues while logging in to the system.

The following output has been provided:

bash

Could not chdir to home directory /home/userA: Permission denied

-bash: /home/userA/.bash_profile: Permission denied

# cat /etc/passwd | grep userA

userA:x:1234:3400:userA account:/home/userA/:/bin/bash

# passwd -S userA

userA PS 2022-10-17 1 99999 0 (Password set. SHA512 crypt.)

# groups userA admin dev usergrp

# ls -lth /home/

drwx------ 7 root admin 9 Jan 17 2019 userA

drwxr-xr-x 4 userC app 9 Jan 23 2020 userC

Which of the following describes the issue userA is having?

119. A systems administrator received a notification that a system is performing slowly.

When running the top command, the systems administrator can see the following values:





Which of the following commands will the administrator most likely run NEXT?

120. A new file was added to a main Git repository. An administrator wants to synchronize a local copy with the contents of the main repository.

Which of the following commands should the administrator use for this task?

121. An administrator thinks that the user Joe may be running an unauthorized process on a Linux server.

Which of the following commands should the administrator run to confirm this idea?

122. A Linux administrator needs to deploy an Apache web server in a container. In addition, the container needs to run in the background, and the web server needs to be exposed on port 8080 of the host machine.

Which of the following commands will satisfy these requirements?

123. A DevOps engineer wants to allow the same Kubernetes container configurations to be deployed in development, testing, and production environments. A key requirement is that the containers should be configured so that developers do not have to statically configure custom, environment-specific locations.

Which of the following should the engineer use to meet this requirement?

124. 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?

125. Some servers in an organization have been compromised. Users are unable to access to the organization’s web page and other services.

While reviewing the system log, a systems administrator notices messages from the kernel regarding firewall rules:





Which of the following commands will remediate and help resolve the issue?

A)





B)





C)





D)

126. 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?

127. A Linux systems administrator is working to obtain the installed kernel version of several hundred systems.

Which of the following utilities should the administrator use for this task?

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

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

129. 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?

130. 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?

131. A systems administrator wants to delete app. conf from a Git repository.

Which of the following commands will delete the file?

132. A systems technician is configuring an application server to accept packets from a trusted source with the IP address 192.168.10.22.

Which of the following commands will allow communication between the two servers?

A. iptables -L -s 192.168.10.22 -j ACCEPT

B. iptables -D INPUT -s 192.168.10.22 -j ACCEPT

C. iptables -A INPUT -s 192.168.10.22 -j ACCEPT

D. iptables -A OUTPUT -S 192.168.10.22 -j ACCEPT

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

134. A Linux administrator needs to analyze a failing application that is running inside a container.

Which of the following commands allows the Linux administrator to enter the running container and analyze the logs that are stored inside?

135. An administrator added the port 2222 for the SSH server on myhost and restarted the SSH server. The administrator noticed issues during the startup of the service.

Given the following outputs:





Which of the following commands will fix the issue?

136. A Linux administrator is configuring Apache on a system and needs to allow the service to start after every startup.

Which of the following commands will allow the Linux administrator to accomplish this task while starting the service at the same time?

137. Employees in the finance department are having trouble accessing the file /opt/work/file. All IT employees can read and write the file.

Systems administrator reviews the following output:





Which of the following commands would permanently fix the access issue while limiting access to IT and finance department employees?

138. A systems administrator is troubleshooting a connectivity issue pertaining to access to a system named db.example.com. The system IP address should be 192.168.20.88.

The administrator issues the dig command and receives the following output:





The administrator runs grep db.example.com /etc/hosts and receives the following output:





Given this scenario, which of the following should the administrator do to address this issue?

139. A DevOps engineer pushed the updated configuration to an existing branch of a remote Git repository.

Which of the following commands should the Linux administrator use to obtain these configuration changes?

140. An average of one out of three users in a company cannot reach the company website. A Linux administrator determines that one of the three website servers is down.

The administrator inspects the DNS configuration for the website and notices the following entry:

nginx

WWW IN A 5.5.5.1 IN A 5.5.5.2 IN A 5.5.5.3

Which of the following accurately explains the issue?

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





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

142. Which of the following data structures is written in JSON?

A)





B)





C)





D)

143. A systems administrator checked out the code from the repository, created a new branch, made changes to the code, and then updated the main branch. The systems administrator wants to ensure that the Terraform state files do not appear in the main branch.

Which of following should the administrator use to meet this requirement?

144. 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?

145. A Linux administrator is changing the default system umask. The newly created files should have the -rw-r----- permission, and the newly created directories should have the drwxr----- permission.

Which of the following commands should the administrator use?

146. Which of the following commands is used to tune kernel parameters?

147. A cloud engineer needs to remove all dangling images and delete all the images that do not have an associated container.

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