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試験の準備方法-100％合格率のXK0-005日本語受験教科書試験-実用的なXK0-005試験対策

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Comptia Linux+認定試験（XK0-005）は、Linux管理者のスキルと知識を検証するグローバルに認められた認定です。この試験は、ユーザーの管理、ソフトウェアのインストールと構成、ファイルシステムの管理、Linuxシステムのセキュリティなどの重要なタスクの実行における候補者の習熟度をテストするように設計されています。 XK0-005試験では、以前のバージョン（XK0-004）に置き換えられ、更新されたコンテンツと新しいテクノロジーが含まれています。

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我々社のCompTIA　XK0-005問題集を購入するかどうかと疑問があると、弊社GoShikenのXK0-005問題集のサンプルをしてみるのもいいことです。試用した後、我々のXK0-005問題集はあなたを試験に順調に合格させると信じられます。なぜと言うのは、我々社の専門家は改革に応じて問題の更新と改善を続けていくのは出発点から勝つからです。

CompTIA Linuxの認定資格は、Linuxの特定のディストリビューションに限定されていません。基本的な概念とスキルを網羅しており、どのLinuxベースのシステムでも作業するために必要なスキルをカバーしています。これにより、Red Hat、Ubuntu、SUSE、およびCentOSなどのさまざまなLinuxディストリビューションに適用されるため、広く認知されています。また、ベンダー中立であるため、特定のハードウェアまたはソフトウェアベンダーに関係しない貴重な資格で、異なる環境で働くITプロフェッショナルにとって重要な認定資格です。

試験は90の多肢選択とパフォーマンスベースの質問からなり、受験者は90分で完了する必要があります。試験料は329ドルであり、認定は3年間有効です。認定には、試験に合格し、特定の経験と教育要件を満たす必要があります。

CompTIA Linux+ Certification Exam 認定 XK0-005 試験問題 (Q32-Q37):

質問 # 32
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?

A. ssh-copy-id user@server
B. rsync ~ /.ssh/ user@server:~/
C. ssh-add user server
D. scp ~/.ssh/id_rsa user@server:~/

正解：A

解説：
The command ssh-copy-id user@server will allow the user to upload the public key to a remote server and enable passwordless login. The ssh-copy-id command is a tool for copying the public key to a remote server and appending it to the authorized_keys file, which is used for public key authentication. The command will also set the appropriate permissions on the remote server to ensure the security of the key. The command ssh-copy-id user@server will copy the public key of the user to the server and allow the user to log in without a password. This is the correct command to use for this task. The other options are incorrect because they either do not copy the public key (scp, rsync, or ssh-add) or do not use the correct syntax (scp ~/.ssh/id_rsa user@server:~/ instead of scp ~/.ssh/id_rsa.pub user@server:~/ or rsync ~ /.ssh/ user@server:~/ instead of rsync ~/.ssh/id_rsa.pub user@server:~/). Reference: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 13: Managing Network Services, page 410.

質問 # 33
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?

A. systemctl status systemd-resolved.service
B. systemctl show systemd-resolved.service
C. systemctl enable systemd-resolved.service
D. systemctl mask systemd-resolved.service

正解：A

解説：
The command systemctl status systemd-resolved.service will show the information about the service systemd-resolved.service. The systemctl command is a tool for managing system services and units. The status option displays the current status of a unit, such as active, inactive, or failed. The output also shows the unit description, loaded configuration, process ID, memory usage, and recent log messages. This command will show if the service systemd-resolved.service is running without any errors. This is the correct command to use to accomplish the task. The other options are incorrect because they either perform different actions (enable, mask, or show) or do not show the status of the service (systemctl show systemd-resolved.service only shows the properties of the service, not the status). Reference: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 14: Managing Processes and Scheduling Tasks, page 427.

質問 # 34
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?

A. docker image save test test:v1
B. docker image build test:vl
C. docker image tag test test:vl
D. docker image version test:v1

正解：C

解説：
The docker image tag test test:v1 command can be used to assign the v1 version to the image called test. This command creates a new tag for the existing image, without changing the original image. The docker image save test test:v1 command would save the image to a file, not assign a version. The docker image build test:vl command is invalid, as vl is not a valid version number. The docker image version test:v1 command does not exist. Reference: [CompTIA Linux+ (XK0-005) Certification Study Guide], Chapter 16: Virtualization and Cloud Technologies, page 500.

質問 # 35
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?

A. su
B. ed
C. fg
D. bg

正解：C

解説：
Ctrl+Z suspended the process, and "fg" will bring it back into the foreground of the shell A Comprehensive and Detailed Explanation: To go back to a program that was suspended by pressing Ctrl+Z in the command line, the command that can be used is fg. The fg command stands for foreground, and it resumes the job that is next in the queue and brings it to the foreground. Alternatively, if there are more than one suspended jobs, fg can be followed by a job number to resume a specific job. The other commands are incorrect because they either do not resume a suspended job, or they have different functions such as switching user (su), pushing a job to the background (bg), or editing a file (ed). References: CompTIA Linux+ Study Guide, Fourth Edition, page 181-182.

質問 # 36
A systems administrator detected corruption in the /data filesystem. Given the following output:

Which of the following commands can the administrator use to best address this issue?

A. umount /data
fsck /dev/ sdcl
mount / data
B. umount /data
mkfs . xfs /dev/sclcl
mount /data
C. umount /data
xfs repair /dev/ sdcl
mount /data
D. umount /data
pvs /dev/sdcl
mount /data

正解：C

解説：
Explanation
The xfs repair command is used to check and repair an XFS filesystem, which is the type of filesystem used for the /data partition, as shown in the output. The administrator needs to unmount the /data partition before running the xfs repair command on it, and then mount it back after the repair is done. For example: umount
/data; xfs_repair /dev/sdcl; mount /data. The mkfs.xfs command is used to create a new XFS filesystem, which would erase all the data on the partition. The fsck command is used to check and repair other types of filesystems, such as ext4, but not XFS. The pvs command is used to display information about physical volumes in a logical volume manager (LVM) setup, which is not relevant for this issue.

質問 # 37
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