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質問 1：
Bob accidentally created the subdirectory \bobsdir in his home directory. He tried to remove the subdirectory with the command rmdir \bobsdir only to receive the error, "No such file or directory." . Which command will remove the directory?
A. rmdir ~bob/\bobsdir
B. rmdir '~bob/\bobsdir'
C. rmdir "~bob/\bobsdir"
D. rmdir ~bob/'bobsdir'
E. rmdir ~bob/\\bobsdir
正解：E
質問 2：
Which command will convert all tab characters in a file to spaces and print that to standard out?
A. expand
B. retab
C. convert
D. untab
正解：A
質問 3：
Which of the following commands enables the setuid (suid) permission on the executable called /bin/foo?
A. chmod 755+s /bin/foo
B. chmod 1755 /bin/foo
C. chown u-s /bin/foo
D. chmod 4755 /bin/foo
正解：D
質問 4：
What does the command mount -a do?
A. It mounts all file systems listed in /etc/fstab.
B. It shows all mounted file systems.
C. It opens /etc/fstab to edit.
D. It mounts the floppy disk for all users.
正解：A
質問 5：
What does the command mount -a do?
A. It ensures that all file systems listed with the option auto in /etc/fstab are mounted.
B. It opens an editor with root privileges and loads /etc/fstab for editing.
C. It ensures that all file systems listed in /etc/fstab are mounted regardless of their options.
D. It shows all mounted file systems that have been automatically mounted.
E. It ensures that all file systems listed with the option noauto in /etc/fstab are mounted.
正解：A
Bob accidentally created the subdirectory \bobsdir in his home directory. He tried to remove the subdirectory with the command rmdir \bobsdir only to receive the error, "No such file or directory." . Which command will remove the directory?
A. rmdir ~bob/\bobsdir
B. rmdir '~bob/\bobsdir'
C. rmdir "~bob/\bobsdir"
D. rmdir ~bob/'bobsdir'
E. rmdir ~bob/\\bobsdir
正解：E
質問 2：
Which command will convert all tab characters in a file to spaces and print that to standard out?
A. expand
B. retab
C. convert
D. untab
正解：A
質問 3：
Which of the following commands enables the setuid (suid) permission on the executable called /bin/foo?
A. chmod 755+s /bin/foo
B. chmod 1755 /bin/foo
C. chown u-s /bin/foo
D. chmod 4755 /bin/foo
正解：D
質問 4：
What does the command mount -a do?
A. It mounts all file systems listed in /etc/fstab.
B. It shows all mounted file systems.
C. It opens /etc/fstab to edit.
D. It mounts the floppy disk for all users.
正解：A
質問 5：
What does the command mount -a do?
A. It ensures that all file systems listed with the option auto in /etc/fstab are mounted.
B. It opens an editor with root privileges and loads /etc/fstab for editing.
C. It ensures that all file systems listed in /etc/fstab are mounted regardless of their options.
D. It shows all mounted file systems that have been automatically mounted.
E. It ensures that all file systems listed with the option noauto in /etc/fstab are mounted.
正解：A
Nakagawa -
こちらの問題集から、9割以上出ました。大変助かりました。やはり信頼できる商品です。