Which is the default percentage of reserved space for the root user on new ext4 filesystems?

• A.3%
• B.0%
• C.10%
• D.5%
• E.15%

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

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

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Which file defines the network locations from where the Debian package manager downloads software packages?
/etc/dpkg/dpkg.cfg

• A./etc/apt/apt.conf.d
• B./etc/dpkg/dselect.cfg
• C./etc/apt/apt.conf
• D./etc/apt/sources.list
• E.

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Which file should be edited to select the network locations from which Debian installation package files are loaded?

• A./etc/dpkg/dpkg.cfg
• B./etc/apt/apt.conf
• C./etc/apt/apt.conf.d
• D./etc/apt/sources.list
• E./etc/dpkg/dselect.cfg

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Which of the following commands installs GRUB 2 into the master boot record on the third hard disk?
grub2 install /dev/sdc

• A.grub-install /dev/sdc
• B.grub-mkrescue /dev/sdc
• C.
• D.grub-mbrinstall /dev/sdc
• E.grub-setup /dev/sdc

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