2023年06月16日に更新された最新のFast2test XK0-004試験問題リアルXK0-004問題集で
XK0-004別格な問題集で最上級の成績にさせるXK0-004問題
CompTIA XK0-004：CompTIA Linux+認定試験は、ITプロフェッショナルがLinux管理の知識とスキルを証明する優れた方法です。この試験は、Linuxに関連する広範なトピックをカバーしており、合格することで、より良い就職機会、高い給与、Linuxテクノロジーとベストプラクティスに関するより深い理解を得ることができます。
CompTIA XK0-004試験に備えるために、候補者はオンラインで利用可能な様々なトレーニングコース、学習ガイド、および練習問題を受講することができます。これらのリソースは、Linuxの概念や技術を包括的に理解し、試験に合格するために必要なスキルを開発するための支援を提供します。さらに、候補者はラボ環境でLinuxシステムを操作することで、実践的な経験を積むことができます。
質問 # 169
A technician reviews me following output:
Which of the following commands should the technician execute to ensure the system has the appropriate paging? (Select TWO).
- A. swapon./dev/sda5
- B. free -m /dev/sda
- C. mkfs.ext3 /dev/sda5
- D. mksvap /dev/sda5
- E. iostat/dev/sda5
- F. dd if-/dev/sda5 of-/otp bs-512
正解：A、D
質問 # 170
A Linux administrator must identify a user with high disk usage. The administrator runs the # du -s /home/* command and gets the following output:
Based on the output, User3 has the largest amount of disk space used. To clean up the file space, the administrator needs to find out more information about the specific files that are using the most disk space.
Which of the following commands will accomplish this task?
- A. df -k /home/User3/files.txt
- B. du -sh /home/User/
- C. du -a /home/User3/*
- D. find . -name /home/User3 -print
正解：B
解説：
Explanation/Reference: https://unix.stackexchange.com/questions/37221/finding-files-that-use-the-most-disk-space
質問 # 171
A user needs to modify the IP address of a laptop. Which of the following files can be used to configure the network interface named eth0?
- A. /etc/sysconfig/network/interfaces.cnf
- B. /etc/interfaces/eth0.conf
- C. /system/config/interfaces
- D. /etc/sysconfig/network-scripts/ifcfg-eth0
- E. /system/networking/ifconfig
正解：D
解説：
Explanation/Reference: https://opensource.com/life/16/6/how-configure-networking-linux
質問 # 172
A systems administrator a retting an HTTPO server on a Lnux server and configuring as a proxy server The administrator runs the following commands to venfy that the service is running:
However, the arjminrstraior is getting a 503 error when browsing to portal.company. internal. After reviewing the logs, the following error information is discovered:
Which of the following commands BEST resolves the issue?
- A. susearch -m USER_LOGIN -sv no
- B. grep http /var/log/audit/audit,log| audit2why
- C. sentforce 0
- D. setsebool -p httpd_can_network_connect 1
正解：C
質問 # 173
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.
正解：
解説：
質問 # 174
A Linux administrator installed a new network adapter and temporarily disabled the network service from starting on boot. The partial output of chkconfigis as follows:
Which of the following commands BEST describes how the administrator should re-enable the network service?
- A. chkconfig --level 0-6 network on
- B. chkconfig --level 0 network on
- C. chkconfig --level 12 network on
- D. cchkconfig --level 345 network on
- E. chkconfig --level 6 network on
正解：D
解説：
Explanation
Explanation/Reference: https://www.thegeekdiary.com/how-to-enable-or-disable-service-on-boot-with-chkconfig/
質問 # 175
The following represents a partial listing of a user's .bashrc file:
HISTSIZE=800
HISTFILESIZE=1000
umask 2002
HISTCONTROL=ignoreboth
When the user opens a terminal, an error message appears:
Octal number out of range
Which of the following lines in the partial .bashrc should be modified to prevent the error from occurring?
- A. HISTCONTROL=ignoreboth
- B. umask 2002
- C. HISTSIZE=800
- D. HISTFILESIZE=1000
正解：B
質問 # 176
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 hide httpd
- B. systemctl disable httpd && systemctl mask httpd
- C. systemctl disable httpd && systemctl hide httpd
- D. systemctl stop httpd && systemctl mask httpd
正解：D
質問 # 177
A virtual machine logs al limes using UTC The systems administrator would like to have one script that outputs times that are in the Amenca/Chicago time zone. Which of the following would the administrator MOST likely use in the script to accounts.
- A. timedatect1 set-timezone "America/Chicago" $$ date >> mylog.txt
- B. date -d 'Tz="America/Chicago" now' >> mylog.txt
- C. hwclock --localtime >> -mylog.txt
- D. echo 'env TZ=America/Chicago date' >> mylog.-xt
正解：A
質問 # 178
A junior systems administrator is creating a cron job. The cron job requirements are as follows:
Run the hello.sh script every hour (24 times in one day).
Run it on Monday only.
Given this scenario, which of the following crontab options should be configured to meet these requirements?
- A. 0 24 ** Monday hello.sh
- B. 1 *** 0 hello.sh
- C. 0 *** 1 hello.sh
- D. 24 *** Monday hello.sh
正解：D
質問 # 179
A Linux administrator needs to configure a new firewall without an existing ACL to allow incoming web traffic.
The firewall must log the allowed network traffic. Which of the following command sequences would
accomplish this task when they are executed in order?
- A. iptables -A INPUT -p tcp --dport 80 -J LOG
iptables -A INPUT -p tcp --dport 443 -J LOG
iptables -I INPUT -p tcp --dport 80 -J ACCEPT
iptables -I INPUT -p tcp --dport 443 -J ACCEPT - B. iptables -A INPUT -m multiport -p tcp --dports 80,443 -J LOG
iptables -A INPUT -m multiport -p tcp --dports 80,443 -J ACCEPT - C. iptables -I INPUT -m multiport -p tcp --dports 80,443 -J LOG
iptables -I INPUT -m multiport -p tcp --dports 80,443 -J ACCEPT - D. iptables -A INPUT -p tcp --dport 80 -J ACCEPT
iptables -A INPUT -p tcp --dport 443 -J ACCEPT
iptables -A INPUT -p tcp --dport 80 -J LOG
iptables -A INPUT -p tcp --dport 443 -J LOG
正解：A
質問 # 180
As a Systems Administrator, to reduce disk space, you were tasked to create a shell script that does the following:
Add relevant content to /tmp/script.sh, so that it finds and compresses rotated files in /var/log without recursion.
INSTRUCTIONS
Fill the blanks to build a script that performs the actual compression of rotated log files.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
正解：
解説：
質問 # 181
A systems administrator must clean up all application files in the directory /var/log/app.
However, the company's security policy requires the files to be kept on the backup server for one year.
The Linux server has only the tar and bzip2 packages installed.
Which of the following commands will package and compress the files?
- A. tar -cvf applicationfiles.tar.bz2 /var/log/app/*
- B. tar -zcvf applicationfiles.tar.bz2 /var/log/app/*
- C. tar -xvf applicationfiles.tar.bz2 /var/log/app/*
- D. tar -jcvf applicationfiles.tar.bz2 /var/log/app/*
正解：A
質問 # 182
A systems administration team has decided to treat their systems as immutable instances. They keep the desired state of each of their systems in version control and apply automation whenever they provision a new instance. If there is an issue with one of their servers, instead of troubleshooting the issue, they terminate the instance and rebuild it using automation.
Which of the following is this an example of?
- A. Infrastructure as code
- B. Orchestration
- C. Inventory
- D. Agentless deployment
正解：A
質問 # 183
A systems administrator notices a large number of autoloaded device modules are no longer needed and decides to do a cleanup of them. Which of the following commands will accomplish this task?
- A. depmod -r
- B. insmod -c
- C. modprobe -r
- D. rmmod -c
正解：C
解説：
Reference:
http://ccrma.stanford.edu/planetccrma/man/man8/modprobe.8.html
質問 # 184
Which of the following configuration management tools is considered agentless?
- A. Chef
- B. Ansible
- C. Salt
- D. Ouppet
正解：B
解説：
Explanation/Reference: https://www.intigua.com/blog/puppet-vs.-chef-vs.-ansible-vs.-saltstack
質問 # 185
A user issues the following command:
ls -l /var/log | egrep -e '^d[rwx]{3}.*[rw-]{3}.*'
The list of files in the system is shown below:
Which of the following results matches the command issued?
- A. drwxr-xr-x 2 root root 4096 Apr 24 08:36 apt
drwxr-xr-x 2 root root 4096 Apr 9 14:25 dist-upgrade
drwxr-x--- 2 root adm 4096 Apr 25 15:41 attended-upgrades - B. drwxr-xr-x 2 root root 4096 Apr 24 08:36 apt
drwxr-xr-x 2 root root 4096 Apr 9 14:25 dist-upgrade
drwxr-x--- 2 root adm 4096 Apr 25 14:41 unattended-upgrades - C. drwxr-x--- 2 root adm 4096 Apr 25 14:41 unattended-upgrades
drwxr-x--- 2 root adm 4096 Apr 25 15:41 attended-upgrades - D. -rw-r--r-- 1 root root 2877 Apr 24 14:14 alternatives.log
-rw-r--r-- 1 syslog adm 246139 Jun 12 15:21 cloud-init.log
-rw-r--r-- 1 root root 8872 Jun 12 15:21 cloud-init-output.log
正解：D
質問 # 186
A system administrator has deployed a Linux server based on an Anaconda process with all packages and custom configurations necessary to install a web server role.
Which of the following could be used to install more Linux servers with the same characteristics?
- A. /root/anaconda.auto
- B. /root/anaconda-ks.cfg
- C. /etc/sysconfig/installation.cfg
- D. /etc/sysconfig/anaconda/cfg
正解：B
質問 # 187
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. Pull the changes from the feature branch into the master branch.
- B. Save the changes to the master branch automatically with each Git commit.
- C. Merge the changes from the feature branch to the master branch.
- D. Clone the feature branch into the master branch.
正解：C
解説：
Explanation/Reference:
Reference: https://git-scm.com/book/en/v2/Git-Branching-Basic-Branching-and-Merging
質問 # 188
Which of the following files would a junior systems administrator check to verify DNS server settings?
- A. /etc/network
- B. /etc/rsolveconf
- C. /etc/nsswitch,conf
- D. /etc/hosts
正解：B
質問 # 189
A directory called /employee is shared with many employees in a company. New hardware was acquired, and the systems administrator needs to back up all files in /employee before the server is replaced.
Which of the following commands should be used to back up all the files and compress them to use little space in the filesystem?
- A. tar -zcvf backup.tar.gz /employee
- B. tar -Cvf backup.tar.gz /employee
- C. tar -zxvf backup.tar.gz /employee
- D. tar -Tpf backup.tar.gz /employee
正解：A
質問 # 190
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. 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. - B. 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. - 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. 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.
正解：A
質問 # 191
A file server is sharing a directory called /share between team members inside a company. The fileshare needs to be moved from serverA to /newshare located on serverB with all permissions and attributes preserved. Which of the following commands would BEST achieve this task?
- A. dd if=/share/* of=serverB:/newshare
- B. rsync -aHAX /share/* serverB:/newshare
- C. mirrorlv /share/* serverB:/newshare
- D. tar -cvf /share/* serverB:/newshare
正解：D
質問 # 192
Joe, a user, reports that he is no longer able to write files to his home directory. Upon inspection, the Linux administrator discovers that attempting to create a new file gives the following error: No space left on device. However, the disk and partition are not full. Which of the following commands would be BEST for the administrator to use to continue troubleshooting this problem?
- A. fdisk /dev/sda
- B. fsck -y /dev/sda1
- C. rm -Rf ~/.*
- D. df -i
正解：D
解説：
Reference:
https://www.linuxtechi.com/11-df-command-examples-in-linux/
質問 # 193
During the final step of staging new Linux hardware, GRUB2 is installed to the system drive. Which of the
following BEST describes the role of GRUB2 in a new Linux installation?
- A. It provides a method to pass parameters to the Linux kernel on startup.
- B. It provides a menu for running special shell scripts.
- C. It provides a method to partition a hard drive.
- D. It provides a menu for creating administrator task shortcuts.
正解：B
解説：
Reference:
configuration/Working_with_the_GRUB_2_Boot_Loader/
質問 # 194
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CompTIA XK0-004 試験は、IT プロフェッショナルが Linux オペレーティングシステムに関するスキルと知識をテストする包括的な認定試験です。広範囲にわたるトピックをカバーし、Linux 管理、スクリプト、開発に技術的な知識を持つ個人を対象としています。この認定を取得することは、IT 業界でキャリアを進めるために貴重な資産であり、Linux ベースのシステムで作業する専門知識を証明するものです。
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