A junior systems administrator has generated a PKI certificate for SSH sessions. The administrator would like to configure authentication without passwords to remote systems. Which of the following should the administrator perform?

• A.Add the content of id_rsa.pub file to the remote system ~/.ssh/authorized_keys location.
• B.Add the content of id_rsa file to the remote system ~/.ssh/authorized_keys location.
• C.Add the content of id_rsa file to the remote system ~/.ssh/known_hosts location.
• D.Add the content of id_rsa.pub file to the remote system ~/.ssh/known_hosts location.

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Which of the following commands would show the default printer on a Linux system?

• A.lpr
• B.lpq
• C.lpstat
• D.lspci

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Which of the following configuration files should be modified to disable Ctrl+Alt+Del in Linux?
/etc/inittab

• A.~/.bash_profile
• B./etc/securetty
• C./etc/security/limits.conf

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A junior systems administrator is upgrading a package that was installed on a Red Hat-based system. The administrator is tasked with the following:
* Update and install the new package.
* Verify the new package version is installed.
Which of the following should be done to BEST accomplish these task? (Choose two.)

• A.yum install <package name>
• B.yum upgrade
• C.rpm -e <package name>
• D.rpm -qa
• E.apt-get <package name>
• F.apt-get upgrade

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An administrator receives a warning about a file system filling up, and then identifies a large file located at /tmp/largelogfile. The administrator deletes the file, but no space is recovered on the file system.
Which of the following commands would BEST assists the administrator in identifying the problem?

• A.pkill /tmp/largelogfile
• B.lsof | grep largelogfile
• C.ps -ef | grep largelogfile
• D.pgrep largelogfile

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