Lpi 102-500 問題集

質問 1：
After issuing:
function myfunction { echo $1 $2 ; }
in Bash, which output does:
myfunction A B C
Produce?
A. A C
B. C B A
C. A B
D. A B C
E. B C
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 2：
Which command makes the shell variable named VARIABLE visible to subshells?
A. set VARIABLE
B. export $VARIABLE
C. env VARIABLE
D. export VARIABLE
E. set $VARIABLE
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 3：
Which command will set the local machine's timezone to UTC?
A. mv /usr/timezone/UTC /etc
B. ln -s /usr/share/zoneinfo/UTC /etc/localtime
C. cat UTC > /etc/timezone
D. date --timezone=UTC
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 4：
What is the difference between the commands test -e path and test -f path?
A. The -f option tests for a regular file. The -e option tests for an executable file.
B. The -f option tests for a regular file. The -e option tests for an empty file.
C. They are equivalent options with the same behaviour.
D. Both options check the existence of the path. The -f option also confirms that it is a regular file.
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 5：
The correct crontab entry to execute the script chklog three times per month between 3 p.m. and 5 p.m.:
A. 0 15,16,17 1 * * chklog
B. * 3,4,5 1 * * chklog
C. 3 15,16,17 * * * chklog
D. 3 3,4,5 1 * * chklog
E. * 15,16,17 1 * * chklog
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 6：
What is the conventional purpose of Linux UIDs that are lower than 100?
A. They are used to match with GIDs in grouping users.
B. They are reserved for system accounts.
C. They are unused, aside from 0, because they are targets of exploits.
D. They are reserved for the system admin accounts.
E. They are reserved for super user accounts.
正解：B
解説: (Topexam メンバーにのみ表示されます)