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質問 14
Which of the following outputs comes from the command free?
- A.
- B.
- C.
- D.
- E.
正解: A
質問 15
A directory contains the following three files:
texts 1.txt
texts 2.txt
texts 3.csv
Which command copies the two files ending in .txtto the /tmp/directory?
- A. cp $?.txt /tmp/
- B. cp. \.txt /tmp/
- C. cp ??.txt /tmp/
- D. cp *.txt /tmp/
- E. cp ?.txt /tmp/
正解: D
解説:
Explanation/Reference:
質問 16
Which of the following commands will search for the filefoo.txtunder the directory/home?
- A. search/home foo. txt
- B. find /home foo.txt
- C. find /home -name foo.txt
- D. search /home -file foo.txt
- E. find /home - file foo.txt
正解: C
質問 17
What is true about thedmesgcommand? (Choose two correct answers.)
- A. It sends messages to the command lines of all current user sessions.
- B. It displays the content of the Linux kernel's ring buffer.
- C. It might not display older information because it was overwritten by newer information.
- D. It immediately outputs all new messages written to the system journal.
- E. It traces the execution of a command and shows each step the program carries out.
正解: B,C
質問 18
Which of the following directories contains information, documentation and example configuration files for
installed software packages?
- A. /doc/
- B. /usr/share/doc/
- C. /var/info/
- D. /etc/defaults/
- E. /usr/examples/
正解: B
質問 19
What information can be displayed bytop?
- A. Existing files, ordered by their size.
- B. User accounts, ordered by the number of files.
- C. User groups, ordered by the number of members.
- D. Running processes, ordered by CPU orRAM consumption.
- E. User accounts, ordered by the number of logins.
正解: D
質問 20
Where is the operating system of a Raspberry Pi stored?
- A. On the master device attached to the Raspberry Pi's IDE bus.
- B. On rewritable flash storage which is built into the Raspberry Pi.
- C. On a removable SD cardwhich is put into the Raspberry Pi.
- D. On a Linux extension module connected to the Raspberry Pi's GPIO pins.
- E. On a read only partition on the Raspberry Pi's firmware, next to the BIOS.
正解: C
質問 21
What is true about the owner of a file?
- A. The owner of a file cannot be changed once it is assigned to an owner.
- B. Each file is owned by exactly one user and one group.
- C. The user owning a file must be a member of the file's group.
- D. The owner of a file always has full permissions when accessing the file.
- E. When a user is deleted, all files owned by the user disappear.
正解: B
質問 22
Which of the following commands shows the absolute path to the current working directory?
- A. cd ..
- B. ls -l
- C. pwd
- D. who
- E. cd ~/home
正解: C
質問 23
Which command displays file names only and no additional information?
- A. ls -l
- B. ls -lh
- C. ls -nl
- D. ls -a
- E. ls -alh
正解: D
質問 24
Running the command rm Downloadsleads to the following error:
rm: cannot remove 'Downloads/': Is a directory
Which of the following commands can be used instead to remove Downloads, assuming Downloadsis empty? (Choose two.)
- A. dir -r Downloads
- B. undir Downloads
- C. rm -r Downloads
- D. rem Downloads
- E. rmdir Downloads
正解: C,E
質問 25
Which of the following commands creates an archive file work.tarfrom the contents of the directory ./
work/?
- A. tar work.tar < ./work/
- B. tar -create work.tgz -content ./work/
- C. tar -cf work.tar ./work/
- D. tar work > work.tar
- E. tar --new work.tar ./work/
正解: C
質問 26
Which of the following commands are used to get information on the proper use of ls? (Choose two.)
- A. manual ls
- B. usage ls
- C. info ls
- D. option ls
- E. man ls
正解: C,E
質問 27
What is defined by a Free Softwarelicense?
- A. Details of the technical documentation each contributor has to provide.
- B. Conditions for modifying and distributing the licensed software.
- C. A complete list of libraries required to compile the licensed software.
- D. Limits on the purposes for which the licensed software may be used.
- E. The programming languages which may be used to extend the licensed program.
正解: B
質問 28
Which of the following DNS record types hold an IP address? (Choose two.)
- A. AAAA
- B. NS
- C. A
- D. CNAME
- E. MX
正解: C,E
質問 29
Which of the following commands creates the ZIP archive poems.zip containing all files in the current directory whose names end in .txt?
- A. zip cfz poems.zip *.txt
- B. zip poems.zip *.txt
- C. zcat *.txt poems.zip
- D. zip *.txt > poems.zip
- E. cat *.txt | zip poems.zip
正解: B
質問 30
The ownership of the file doku.odt should be changed. The new owner is named tux. Which command accomplishes this change?
- A. chown tux doku.odt
- B. transfer tux: doku.odt
- C. chmod u=tux doku.odt
- D. passwd doku.odt:tux
- E. newuser doku.odt tux
正解: A
質問 31
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