101-400 무료 덤프문제 온라인 액세스

Which of the following commands will NOT update the modify timestamp on the file
/tmp/myfile.txt?

• A.echo "Hello" >/tmp/myfile.txt
• B.sed -ie "s/1/2/" /tmp/myfile.txt
• C.touch/tmp/myfile.txt
• D.echo -n "Hello" >>/tmp/myfile.txt
• E.file /tmp/myfile.txt

Which of the following commands creates an ext3 filesystem on /dev/sdb1? (Choose TWO correct answers.)

• A./sbin/mke3fs -j /dev/sdb1
• B./sbin/mkfs -t ext3 /dev/sdb1
• C./sbin/mke2fs -j /dev/sdb1
• D./sbin/mkfs -c ext3 /dev/sdb1

Creating a hard link to an ordinary file returns an error. What could be the reason for this?

• A.The source file is hidden.
• B.The source file is already a hard link.
• C.The source file is a shell script.
• D.The source and the target are on different filesystems.
• E.The source file is read-only.

Which file should be edited to select the network locations from which Debian installation package files are loaded?

• A./etc/dpkg/dpkg.cfg
• B./etc/apt/apt.conf.d
• C./etc/dpkg/dselect.cfg
• D./etc/apt/sources.list
• E./etc/apt/apt.conf

What is the purpose of the xargs command?

• A.It asks a question, graphically, and returns the answer to the shell.
• B.It passes arguments to an X server.
• C.It allows users to specify long options for commands that normally only accept short options.
• D.It helps shellscripts take variable argument lists.
• E.It reads standard input (STDIN) and builds up command lines to execute.