A Linux systems administrator installed a new web server, which failed while attempting to start. The
administrator suspects that SELinux is causing an issue and wants to temporarily put the system into
permissive mode. Which of the following would allow the administrator to accomplish this?

• A.setenforce 0
• B.echo SELINUX=PERMISSIVE >> /etc/sysconfig/selinux
• C.chcon httpd_sys_content_t /var/
• D.sestatus 0

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A Linux administrator needs to switch from text mode to GUI. Which of the following runlevels will start the GUI by default?

• A.Runlevel 3
• B.Runlevel 4
• C.Runlevel 5
• D.Runlevel 6

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Joe, a user, reports there is data missing after a reboot of the system he is using. The data he was working on was located in /opt/data/user1. A Linux administrator runs the following commands and receives the resulting output.

Which of the following should the administrator perform to resolve the issue?

• A.The administrator can conclude Joe no longer has permissions to his data and needs to change the data
  ownership to Joe.
• B.The administrator can conclude the drive is not mounted properly and should be remounted.
• C.The administrator can conclude Joe has been using the wrong folder and should be using /opt/data/
  user2.
• D.The administrator can conclude the data is gone from the system and needs to be restored from a backup.

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An administrator is troubleshooting an application that has failed to start after the server was rebooted. Noticing the data volume is not mounted, the administrator attempts to mount it and receives this error:

Upon checking the logical volume status, the administrator receives this information:

Which of the following can be said about the data logical volume, and how can this problem be resolved?

• A.The logical volume file system has become corrupted. The administrator should repair it with xfs_repair/dev/datavg/datalv and then mount it.
• B.The logical volume is OK but the /dev special files are missing. The administrator should recreate them by running /dev/MAKEDEV.
• C.The file system is read-only. The administrator should remount it as read-write with the command mount - o remount.rw /data.
• D.The logical volume is not active. The administrator should make it active with lvchange -ay /dev/
  datavg/datalv and then mount it.

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Joe, a user, is unable to log in to the server and contracts the systems administrator to look into the issue. The administrator examines the /etc/passwd file and discovers the following entry:
joe:x:505:505::/home/joe:/bin/false
Which of the following commands should the administrator execute to resolve the problem?

• A.usermod -s /bin/bash joe
• B.passwd -u joe
• C.useradd -s /bin/bash joe
• D.chage -E -1 joe

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