102-500 試験問題と解答 - 模擬練習 - 練習問題・模擬試験

Question No : 1
Which of the following commands can be used to convert text files in one character encoding to another character encoding?

A.cat
B.convert
C.dd
D.iconv
E.utf2utf

正解:

Question No : 2
Which of the following commands should be added to /etc/bash_profile in order to change the language of messages for an internationalized program to Portuguese (pt)?

A.export LANGUAGE="pt"
B.export MESSAGE="pt"
C.export UI_MESSAGES="pt"
D.export LC_MESSAGES="pt"
E.export ALL_MESSAGES="pt"

正解:

Question No : 3
What is the conventional purpose of Linux UIDs that are lower than 100?

A.They are reserved for super user accounts.
B.They are reserved for the system admin accounts.
C.They are reserved for system accounts.
D.They are unused, aside from 0, because they are targets of exploits.
E.They are used to match with GIDs in grouping users.

正解:

Question No : 4
Which character in the password field of /etc/passwd is used to indicate that the encrypted password is stored in /etc/shadow?

A.*
B.-
C.s
D.x

正解:

Question No : 5
How is the file format of /etc/crontab different from a normal crontab file? (Select TWO correct answers)

A.The /etc/crontab file can specify a year field.
B.A normal crontab file must be installed with the crontab command.
C.A normal crontab file allows for environment variable substitution.
D.The /etc/crontab file has a user field for commands.

正解:

Question No : 6
Which TWO statements about crontab are true?

A.Every user may have their own crontab.
B.Changing a crontab requires a reload/restart of the cron daemon.
C.The cron daemon reloads crontab files automatically when necessary.
D.hourly is the same as "0 * * * *".
E.A cron daemon must run for each existing crontab.

正解:

Question No : 7
What is the purpose of the iconv command?

A.It converts bitmap images from one format to another such as PNG to JPE
B.It verifies that the root directory tree complies to all conventions from the Filesystem Hierarchy Standard (FHS).
C.It displays additional meta information from icon files ending in .ico.
D.It changes the mode of an inode in the ext4 file system.
E.It converts files from one character encoding to another.

正解:

Question No : 8
Which command can be used to delete a group from a Linux system?

A.groupdel
B.groupmod
C.groups
D.groupedit

正解:

Question No : 9
Which commands can be used to change a user's account aging information? (Choose THREE correct answers.)

A.usermod
B.passwd
C.chattr
D.chage
E.chsh

正解:

Question No : 10
Which commands can you use to change a user's account aging information? (Choose THREE correct answers.)

A.usermod
B.passwd
C.chattr
D.chage
E.chsh

正解:

Question No : 11
Which command will set the local machine's timezone to UTC?

A.cat UTC > /etc/timezone
B.ln -s /usr/share/zoneinfo/UTC /etc/localtime
C.date --timezone=UTC
D.mv /usr/timezone/UTC /etc

正解:

Question No : 12
What is true regarding the command userdel --force --remove bob? (Choose TWO correct answers.)

A.The user bob is removed from the system's user database.
B.The user bob's home directory is removed.
C.The locate database is updated to drop files owned by bob.
D.All files owned by bob are remove from all mounted filesystems.
E.In case bob was the last member of a group, that group is deleted.

正解:

Question No : 13
CORRECT TEXT - (Topic 3)
Which file specifies the user accounts that can NOT submit jobs via at or batch? (Provide the full path and filename)

正解: /etc/at.deny

Question No : 14
CORRECT TEXT - (Topic 3)
The ________ command is used to add a group to the system.

正解: groupadd, /usr/sbin/groupadd

Question No : 15
Which file contains the date of the last change of a user's password?

A./etc/gshadow
B./etc/passwd
C./etc/pwdlog
D./etc/shadow
E./var/log/shadow

正解:

LPI 102-500 問題練習