101-400 試験問題を無料オンラインアクセス

Which of the following commands moves and resumes in the background the last stopped shell job?

• A.bg
• B.back
• C.run
• D.fg

What is the purpose of the Bash built-in export command?

• A.It runs a command as a process in a subshell.
• B.It allows disks to be mounted remotely.
• C.It sets up environment variables for applications.
• D.It shares NFS partitions for use by other systems on the network.
• E.It makes the command history available to subshells.

Which of the following apt-get commands will install the newest versions of all currently installed packages?

• A.full-upgrade
• B.dist-upgrade
• C.auto-update
• D.update
• E.install

Which Bash environment variable defines in which file the user history is stored when exiting a Bash process? (Specify ONLY the variable name.)

CORRECT TEXT
Which command reads and displays the current contents of the Kernel Ring Buffer on the command line? (Specify ONLY the command without any path or parameters.)