010-160全真問題集 & 010-160日本語版参考書

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Lpi 010-160 認定試験の出題範囲：

トピック出題範囲
トピック 1
  • The Linux Operating System: Targeted at the IT Support Technician, this domain covers the selection of operating systems and their life cycles, differences between major OS types, and essential hardware components including storage and drivers. It further explores how data is stored and logged in a Linux system, and mandates competence in querying network configurations, understanding TCP
  • IP concepts, and verifying connectivity using basic networking tools.
トピック 2
  • The Power of the Command Line: This section measures the abilities of a Linux Script Developer and focuses on archive management using tools like tar and gzip, as well as data searching and filtering via utilities such as grep and cut. It also assesses the capacity to transform repetitive commands into simple shell scripts, employing constructs such as shebang lines, loops, variables, and error handling to automate tasks.
トピック 3
  • Finding Your Way on a Linux System: Aimed at the Junior Linux System Administrator, this domain evaluates competence using the Linux command line. Candidates must demonstrate an understanding of shell syntax, environment variables, and quoting conventions. They are expected to navigate help systems such as man and info pages, manipulate directories and files through absolute and relative paths, and perform basic file operations including creation, movement, and deletion.
トピック 4
  • The Linux Community and a Career in Open Source: This section of the exam measures skills of an Aspiring Open Source Developer and covers the history and growth of Linux along with its major distributions, embedded uses like Raspberry Pi, and its role in cloud computing. It also requires familiarity with prominent open source applications across desktop, server, and development contexts, including package management tools. Additionally, it addresses open source philosophy and licensing principles, and evaluates basic ICT skills relevant to working within Linux environments.
トピック 5
  • Security and File Permissions: This section evaluates the expertise of a Linux Security Administrator in user and group management, permission structures, and directory security. It addresses root and system user distinctions, account creation and modification processes, and manipulation of file ownership and permission settings. Knowledge of special directories, symbolic links, and the behaviour of sticky bits completes the required security skill set.

Lpi 010-160: Linux Essentials Certificate Exam、バージョン1.6は、Linuxに興味を持つ個人にとって優れた認定資格です。この試験はアクセスしやすく、手頃な価格であり、さらなる学習の堅実な基礎を提供します。この認定は世界的に認知され、産業界では高く評価されています。Linuxについて学びたい場合は、Linux Essentials Certificateを出発点として取り組むことをお勧めします。

>> 010-160全真問題集 <<

Lpi 010-160日本語版参考書 & 010-160復習攻略問題

お客様が問題を解決できるように、当社は常に問題を最優先し、価値あるサービスを提供することを強く求めています。 010-160質問トレントは、短時間で試験に合格し、認定資格を取得するのに役立つと確信しています。 010-160ガイドの質問を理解するのが待ち遠しいかもしれません。他の教材と比較した場合、当社の製品の品質がより高いことをお約束します。現時点では、010-160ガイドトレントのデモを無料でダウンロードできます。010-160試験問題をご存知の場合は、ぜひお試しください。

LPI 010-160 試験は、世界的に認められており、Linux管理における知識とスキルを証明する素晴らしい方法です。この認定は、特にIT業界でのキャリアを目指す人々にとって非常に価値があります。多くの企業がLinux管理に熟練した専門家を求めており、この認定はキャリアアップや異なるキャリアパスへの転換を目指す個人にとっても役立ちます。

Lpi Linux Essentials Certificate Exam - version 1.6 認定 010-160 試験問題 (Q23-Q28):

質問 # 23
The file script.sh in the current directory contains the following content:
#!/bin/bash echo $MYVAR
The following commands are used to execute this script:
MYVAR=value
./script.sh
The result is an empty line instead of the content of the variable MYVAR. How should MYVAR be set in order to make script.sh display the content of MYVAR?

正解：A

解説：
Explanation
The reason why the script.sh does not display the content of the variable MYVAR is that the variable is not exported to the environment of the script. When a script is executed, it runs in a separate process that inherits the environment variables from the parent process, but not the shell variables. A shell variable is a variable that is defined and visible only in the current shell session, while an environment variable is a variable that is exported to the environment and visible to all processes that run in that environment1.
To make a shell variable an environment variable, we need to use the export command. The export command takes a shell variable name and adds it to the environment of the current shell and any subshells or processes that are created from it2. For example, to export the variable MYVAR with the value value, we can use:
export MYVAR=value
This will make the variable MYVAR available to the script.sh when it is executed, and the script will print the value of MYVAR as expected. Alternatively, we can also use the export command with the -n option to remove a variable from the environment, or with the -p option to list all the environment variables2.
The other options are not valid ways to set MYVAR as an environment variable. The !MYVAR=value option is not a valid syntax for setting a variable in bash. The env MYVAR=value option will run the env command with the MYVAR=value argument, which will print the environment variables with the addition of MYVAR=value, but it will not affect the current shell or the script.sh3. The MYVAR=value option will set MYVAR as a shell variable, but not as an environment variable, so it will not be visible to the script.sh1. The
$MYVAR=value option will try to set the variable whose name is the value of MYVAR to the value value, which is not what we want4. References:
* Linux Essentials Exam Objectives, Version 1.6, Topic 103.1, Weight 2
* Linux Essentials Certification Guide, Chapter 3, Page 51-52
* env(1) - Linux manual page
* Bash Variables - LinuxConfig.org


質問 # 24
Which one of the following statements concerning Linux passwords is true?

正解：B

解説：
Linux passwords are not stored in plain text, but in a scrambled or encrypted form known as a hash. A hash is a one-way function that transforms a string of characters into a fixed-length value. The same input always produces the same hash, but it is impossible to reverse the process and recover the original input from the hash. This way, the system can verify the user's password without exposing it to anyone who can read the file where the hashes are stored. The file that contains the password hashes is /etc/shadow, which is only readable by the root user or members of the shadow group. The passwd utility is used to change the user's password, which updates the hash in the /etc/shadow file. Reference: Linux Essentials 1.6 Topic 105: Security and File Permissions, How to Change Account Passwords on Linux, Where is my password stored on Linux?


質問 # 25
What can be found in the /proc/ directory?

正解：B

解説：
Explanation
The /proc/ directory is a virtual file system that contains information about the system and the processes running on it. It is not a conventional file system that stores files on a disk, but rather a dynamic view of the kernel's data structures. One of the features of the /proc/ directory is that it contains one subdirectory for each process running on the system, which is named after the process ID (PID). For example, the subdirectory
/proc/1/ contains information about the process with PID 1, which is usually the init process. The process subdirectories contain various files that provide information about the process, such as its status, memory usage, open files, environment variables, command line arguments, and more. The /proc/ directory also contains a symbolic link called 'self', whichpoints to the process that is accessing the /proc/ file system.
Therefore, the correct answer is D. One directory per running process.
The other options are incorrect because:
* A. One directory per installed program. This is not true, as the /proc/ directory does not contain information about installed programs, but only about running processes. Installed programs are usually stored in other directories, such as /bin/, /usr/bin/, /opt/, etc.
* B. One device file per hardware device. This is not true, as the /proc/ directory does not contain device files, but only virtual files that represent kernel data. Device files are usually stored in the /dev/
* directory, which is another special file system that provides access to hardware devices.
* C. One file per existing user account. This is not true, as the /proc/ directory does not contain information about user accounts, but only about processes. User accounts are usually stored in the /etc/ directory, which contains configuration files, such as /etc/passwd/ and /etc/shadow/, that define the users and their passwords.
* E. One log file per running service. This is not true, as the /proc/ directory does not contain log files, but only information files. Log files are usually stored in the /var/log/ directory, which contains various files that record the activities of the system and the services.
References:
* The /proc Filesystem - The Linux Kernel documentation
* A Beginner's Guide to the /proc File System in Linux - Tecmint
* Appendix E. The proc File System Red Hat Enterprise Linux 6 | Red Hat ...
* Chapter 5. The proc File System Red Hat Enterprise Linux 4 | Red Hat ...
* proc file system in Linux - GeeksforGeeks


質問 # 26
A directory contains the following three files:
texts 1.txt
texts 2.txt
texts 3.csv
Which command copies the two files ending in.txtto the/tmp/directory?

正解：C


質問 # 27
Which of the following commands finds all lines in the file operating-systems.txt which contain the term linux, regardless of the case?

正解：A


質問 # 28
......

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