Why is the root file system mounted read-only during boot and remounted with write permission later on?

• A.To avoid writing to the disk, unless the root password is known.
• B.Because this way crackers cannot collect information about root with boot sniffers.
• C.Because if problems with the root file system are detected during the boot, fsck can be run, without risk of damage.
• D.Because the disk has its own write protection that cannot be changed by the operating system.
• E.To avoid other operating systems overwriting the Linux root partition.

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What action should be performed after increasing the size of a logical volume?

• A.Run 1vresize
• B.Increase the size of the filesystem used for the logical volume
• C.Remount the logical volume
• D.Run vgresize

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What should be done to ensure a client machine uses the recursive nameserver running on the IP address 192.168.0.1? (Choose TWO correct answers.)

• A.Run route add nameserver 192.168.0.1.
• B.Ensure that the dns service is listed in the hosts entry in the /etc/nsswitch.conf file.
• C.Add nameserver 192.168.0.1 to /etc/resolv.conf.
• D.Run bind add nameserver 192.168.0.1.
• E.Run ifconfig eth0 nameserver 192.168.0.1.

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When configuring a new kernel, what file under /usr/src/linux/ contains the configuration?

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Which of the following commands will erase the contents of the /dev/sdb3 partition?

• A.dd if=/dev/zero of=/dev/sdb3
• B.dd of=/dev/zero if=/dev/sdb3
• C.rm /dev/sdb3
• D.umount /dev/sdb3

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