최신Linux Foundation Certified System Administrator - LFCS무료샘플문제
문제1
CORRECT TEXT
With IPv6, how many bits have been used for the interface identifier of an unicast address? (Specify the number using digits only.)
CORRECT TEXT
With IPv6, how many bits have been used for the interface identifier of an unicast address? (Specify the number using digits only.)
정답:
64
문제2
Which approach will provide a listing of the contents in a tar archive?
Which approach will provide a listing of the contents in a tar archive?
정답: E
문제3
CORRECT TEXT
Which command is used in a Linux environment to create a new directory? (Specify ONLY the command without any path or parameters.)
CORRECT TEXT
Which command is used in a Linux environment to create a new directory? (Specify ONLY the command without any path or parameters.)
정답:
mkdir, /usr/bin/mkdir
문제4
Which of the following commands set the sticky bit for the directory /tmp? (Choose TWO correct answers.)
Which of the following commands set the sticky bit for the directory /tmp? (Choose TWO correct answers.)
정답: B,D
문제5
Which of the following signals is sent to a process when the key combination CTRL+C is pressed on the keyboard?
Which of the following signals is sent to a process when the key combination CTRL+C is pressed on the keyboard?
정답: D
문제6
Each entry in a crontab must end with what character?
Each entry in a crontab must end with what character?
정답: A
문제7
Immediately after deleting 3 lines of text in vi and moving the cursor to a different line, which single character command will insert the deleted content below the current line?
Immediately after deleting 3 lines of text in vi and moving the cursor to a different line, which single character command will insert the deleted content below the current line?
정답: B
문제8
CORRECT TEXT
Which command can be used to investigate the properties for a particular window in X by clicking that window? (Specify ONLY the command without any path or parameters.)
CORRECT TEXT
Which command can be used to investigate the properties for a particular window in X by clicking that window? (Specify ONLY the command without any path or parameters.)
정답:
/usr/bin/xwininfo, xwininfo
문제9
Which of the following commands redirects the output of cmd to the file foo.txt, in which an existing file is overwritten?
Which of the following commands redirects the output of cmd to the file foo.txt, in which an existing file is overwritten?
정답: C
문제10
What output will the command seq 10 produce?
What output will the command seq 10 produce?
정답: C
문제11
CORRECT TEXT
Which command, available with all MTAs, is used to list the contents of the MTA's mail queue? (Specify ONLY the command without any path or parameters.)
CORRECT TEXT
Which command, available with all MTAs, is used to list the contents of the MTA's mail queue? (Specify ONLY the command without any path or parameters.)
정답:
mailq, /usr/bin/mailq, sendmail -bp, /usr/sbin/sendmail -bp, /usr/lib/sendmail -bp, sendmail, /usr/sbin/sendmail, /usr/lib/sendmail
문제12
Which of the following commands will create an archive file, named backup.tar, containing all the files from the directory /home?
Which of the following commands will create an archive file, named backup.tar, containing all the files from the directory /home?
정답: C
문제13
Which of the following fields are available in both the global /etc/crontab file as well as in user-specific crontab files? (Select TWO correct answers)
Which of the following fields are available in both the global /etc/crontab file as well as in user-specific crontab files? (Select TWO correct answers)
정답: C,D
문제14
CORRECT TEXT
Which command is used to add an empty group to the system? (Specify ONLY the command without any path or parameters.)
CORRECT TEXT
Which command is used to add an empty group to the system? (Specify ONLY the command without any path or parameters.)
정답:
groupadd, /usr/sbin/groupadd
문제15
CORRECT TEXT
On a Linux system with shadow passwords enabled, which file in the file system contains the password hashes of all local users? (Specify the full name of the file, including path.)
CORRECT TEXT
On a Linux system with shadow passwords enabled, which file in the file system contains the password hashes of all local users? (Specify the full name of the file, including path.)
정답:
/etc/shadow