101-500시험준비공부 & 101-500예상문제

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>> 101-500시험준비공부 <<

101-500예상문제, 101-500인증시험 덤프자료

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LPI 101-500 시험은 LPIC-1 Exam 101, Part 1 of 2, version 5.0으로도 알려져 있으며, Linux 관리에 대한 전문성을 입증하고자 하는 IT 전문가들을 위한 자격증 시험입니다. 이 시험은 LPIC-1 자격증 과정의 첫 번째 파트이며, 후보자의 Linux 시스템 관리 기초 지식과 기술을 테스트하기 위해 설계되었습니다. 이 시험에 합격하면 후보자가 Linux 시스템 관리의 기본을 이해하고, Linux 시스템을 설치하고 구성하며, 사용자 계정을 관리하고, Linux 명령어를 사용하는 등 필수적인 작업을 수행할 수 있는 능력을 갖춘 것임을 증명할 수 있습니다.

최신 LPIC Level1 101-500 무료샘플문제 (Q36-Q41):

질문 # 36
What is the default nice level when a process is started using the nice command?

A. 0
B. 1
C. 2
D. 3

정답：C

질문 # 37
Which of the following commands enables the setuid (suid) permission on the executable /bin/foo?

A. chmod 1755 /bin/foo
B. chmod u-s /bin/foo
C. chmod 755+s /bin/foo
D. chmod 4755 /bin/foo

정답：D

설명：
Explanation
The correct command to enable the setuid (suid) permission on the executable /bin/foo is:
B: chmod 4755 /bin/foo
The chmod command is used to change the permissions of files and directories in Linux. The chmod command can take either a symbolic or a numeric mode to specify the new permissions. The numeric mode is composed of four digits, each representing a different set of permissions: the first digit is for the special permissions, such as setuid, setgid, and sticky bit; the second digit is for the user permissions; the third digit is for the group permissions; and the fourth digit is for the others permissions. Each digit can range from 0 to 7, where 0 means no permissions, 1 means execute permission, 2 means write permission, 4 means read permission, and the sum of these values means a combination of permissions. For example, 5 means read and execute permissions, and
6 means read and write permissions.
The setuid permission is a special permission that allows an executable to run with the privileges of the owner of the file, instead of the user who launched it. The setuid permission is represented by the value 4 in the first digit of the numeric mode. For example, to enable the setuid permission on an executable file, use the following command:
chmod 4xxx file
where xxx is the combination of the user, group, and others permissions.
In this question, the executable file is /bin/foo, and the desired permissions are:
* setuid permission enabled
* user permissions: read, write, and execute
* group permissions: read and execute
* others permissions: read and execute
Therefore, the numeric mode for these permissions is 4755, where:
* 4 means setuid permission enabled
* 7 means user permissions: read, write, and execute
* 5 means group permissions: read and execute
* 5 means others permissions: read and execute
The correct command to enable the setuid permission on /bin/foo with these permissions is:
chmod 4755 /bin/foo
This command will change the permissions of /bin/foo to -rwsr-xr-x, where the s in the user section indicates the setuid permission.
The other options are not correct because:
* A: chmod 1755 /bin/foo: This command will enable the sticky bit, not the setuid permission, on /bin/foo.
The sticky bit is another special permission that prevents users from deleting or renaming files that they do not own in a shared directory. The sticky bit is represented by the value 1 in the first digit of the numeric mode. For example, to enable the sticky bit on a directory, use the following command:
chmod 1xxx directory
where xxx is the combination of the user, group, and others permissions.
* C: chmod u-s /bin/foo: This command will disable the setuid permission, not enable it, on /bin/foo. The u-s option is a symbolic mode that means remove the setuid permission from the user permissions. For example, to disable the setuid permission on an executable file, use the following command:
chmod u-s file
* D: chmod 755+s /bin/foo: This command is not valid because it mixes the numeric and the symbolic modes, which are not compatible. The 755 is a numeric mode that means user permissions: read, write, and execute; group permissions: read and execute; others permissions: read and execute. The +s is a symbolic mode that means add the setuid and setgid permissions to the user and group permissions, respectively. The chmod command does not accept both numeric and symbolic modes at the same time, and it will fail with an error message saying:
chmod: invalid mode: '755+s' Try 'chmod --help' for more information.
References:
* SetUID, SetGID, and Sticky Bits in Linux File Permissions - GeeksforGeeks
* How to use special permissions: the setuid, setgid and sticky bits - Linux Tutorials - Learn Linux Configuration
* chmod(1): change file mode bits - Linux man page

질문 # 38
Consider the following output from the command ls -i:

How would a new file named c.txt be created with the same inode number as a.txt(Inode 525385)?
ln -h a.txt c.txt

A. ln -i 525385 c.txt
B. ln c.txt a.txt
C. ln -f c.txt a.txt
D. ln a.txt c.txt

정답：C

질문 # 39
FILL BLANK
Which command displays the current disk space usage for all mounted file systems? (Specify ONLY the command without any path or parameters.)

정답：

설명：
df

질문 # 40
Which of the following properties of an existing file changes when a hard link pointing to that file is created?

A. Permissions
B. File size
C. Link count
D. Modify timestamp
E. Inode number

정답：C

질문 # 41
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Lpi인증101-500시험은 IT인증시험과목중 가장 인기있는 시험입니다. ExamPassdump에서는Lpi인증101-500시험에 대비한 공부가이드를 발췌하여 IT인사들의 시험공부 고민을 덜어드립니다. ExamPassdump에서 발췌한 Lpi인증101-500덤프는 실제시험의 모든 범위를 커버하고 있고 모든 시험유형이 포함되어 있어 시험준비 공부의 완벽한 선택입니다.

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