NextGen

You want to install a test environment to practice for the RHCSA/RHCE exams. Which of the following distributions should you avoid?

• The most recent Fedora version

• CentOS 7

• Scientific Linux 7

• RHEL 7

Which of the following features is not just available in RHEL but also in CentOS?

• Hardware certification

• Software certification

• 
  The right to make support calls

• Software updates

Why should you install the server with a GUI installation pattern?

• To prepare for RHCSA/RHCE, you need some tools that run in a GUI only.

• The minimal installation is incomplete.

• If you do not install a GUI immediately, it is very hard to add it later.

• • The Server with GUI is the default installation that is recommended by Red Hat.

  • 
    

Which is the default file system that is used in RHEL 7?

• Ext3

• Ext4

• XFS

• • Btrfs

  • 
    

Answer explanation

XFS is used as the default file system. When Red Hat decided which file system to use as the default file system, Btrfs was not stable enough yet.

Which feature is supported in Ext4 but not in XFS?

• Shrinking the file system

• 
  Snapshots

• ile system quota

• • A maximum size that goes beyond 2TB

  • 
    

Answer explanation

The size of an XFS file system cannot be reduced.

Which of the following enables you to redirect standard output as well as errors to a file?

• 
  1&2> file

• 2>&1 file

• >1&2 file

• • 1>2& file

  • 
    

Answer explanation

Answer B shows the correct syntax. The 2 redirects error messages, and &1 makes sure that the same is done for STDOUT.

You are looking for a variable that is set in a bash login shell for all users. Which of the following files is the most likely location where this variable is set? (Choose two.)

• 
  /etc/profile

• 
  /etc/bashrc

• ~/.bash_profile

• ~/.bashrc

Answer explanation

/etc/profile is the file that is processed for all users who are starting a login shell.

A user has created a script with the name myscript. He tries to run it using the command myscript , but it is not started. The user has verified that the script permissions are set as executable. Which of the following is the most likely explanation?

• An internal command is preventing the startup of the script.

• Users are not allowed to run scripts

• 
  The directory that contains the script is not in the PATH.

• The script does not have appropriate permissions.

Answer explanation

On Linux, the current directory is not set in the PATH variable.

You need the output of the command ls to be used as input for the less command. Which of the following examples will do that for you?

• ls > less

• 
  ls >> less

• 
  ls >| less

• 
  ls | less

Answer explanation

A pipe is used to process the output of the first command and use it as input of the second command.

A user wants to remove his complete history. Which of the following approaches would do that?

• Remove the ~/.bash_history file and type history -c

• Type history -c

• Remove the ~/.bash_history file.

• 
  Type history -c and close the current shell.

Answer explanation

The command history -c removes the in-memory state from the history file of current history. Remove ~/.bash_history also to make sure that all history is removed.