| Topic | Details |
| System Architecture | |
| Determine and configure hardware settings | Weight:2 Description:Candidates should be able to determine and configure fundamental system hardware Key Knowledge Areas: -Enable and disable integrated peripherals. - Differentiate between the various types of mass storage devices. - Determine hardware resources for devices. -Tools and utilities to list various hardware information (e.g. lsusb, lspci, etc.). -Tools and utilities to manipulate USB devices. -Conceptual understanding of sysfs, udev and dbus. The following is a partial list of the used files, terms and utilities: -/sys/ -/proc/ -/dev/ -modprobe -lsmod -lspci -lsusb |
| Boot the system | Weight:3 Description:Candidates should be able to guide the system through the booting process. Key Knowledge Areas: -Provide common commands to the boot loader and options to the kernel at boot time. -Demonstrate knowledge of the boot sequence from BIOS/UEFI to boot completion. -Understanding of SysVinit and systemd. -Awareness of Upstart. -Check boot events in the log files. The following is a partial list of the used files,terms and utilities: -dmesg - journalctl -BIOS - UEFI -bootloader -kernel -initramfs -init -SysVinit -systemd |
| Change runlevels / boot targets and shutdown or reboot system | Weight:3 Description:Candidates should be able to manage the SysVinit runlevel or systemd boot target of the system. This objective includes changing to single user mode, shutdown or rebooting the system. Candidates should be able to alert users before switching runlevels / boot targets and properly terminate processes. This objective also includes setting the default SysVinit runlevel or systemd boot target. It also includes awareness of Upstart as an alternative to SysVinit or systemd. Key Knowledge Areas: -Set the default runlevel or boot target. -Change between runlevels / boot targets including single user mode. -Shutdown and reboot from the command line. -Alert users before switching runlevels / boot targets or other major system events. -Properly terminate processes. -Awareness of acpid. The following is a partial list of the used files,terms and utilities: -/etc/inittab -shutdown -init -/etc/init.d/ -telinit -systemd -systemctl -/etc/systemd/ -/usr/lib/systemd/ -wall |
| Linux Installation and Package Management | |
| Design hard disk layout | Weight:2 Description:Candidates should be able to design a disk partitioning scheme for a Linux system. Key Knowledge Areas: - Allocate filesystems and swap space to separate partitions or disks. -Tailor the design to the intended use of the system. -Ensure the /boot partition conforms to the hardware architecture requirements for booting. -Knowledge of basic features of LVM. The following is a partial list of the used files,terms and utilities: -/ (root) filesystem -/var filesystem -/home filesystem -/boot filesystem -EFI System Partition (ESP) -swap space -mount points -partitions |
| Install a boot manager | Weight:2 Description:Candidates should be able to select, install and configure a boot manager. Key Knowledge Areas: -Providing alternative boot locations and backup boot options. -Install and configure a boot loader such as GRUB Legacy. -Perform basic configuration changes for GRUB 2. -Interact with the boot loader. The following is a partial list of the used files, terms and utilities: -menu.lst, grub.cfg and grub.conf -grub-install -grub-mkconfig -MBR |
| Manage shared libraries | Weight:1 Description:Candidates should be able to determine the shared libraries that executable programs depend on and install them when necessary. Key Knowledge Areas: -Identify shared libraries. -Identify the typical locations of system libraries. -Load shared libraries. The following is a partial list of the used files,terms and utilities: -ldd -ldconfig -/etc/ld.so.conf -LD_LIBRARY_PATH |
| Use Debian package management | Weight:3 Description:Candidates should be able to perform package management using the Debian package tools. Key Knowledge Areas: -Install, upgrade and uninstall Debian binary packages. -Find packages containing specific files or libraries which may or may not be installed. -Obtain package information like version, content, dependencies, package integrity and installation status (whether or not the package is installed). - Awareness of apt. The following is a partial list of the used files,terms and utilities: -/etc/apt/sources.list -dpkg -dpkg-reconfigure -apt-get -apt-cache |
| Use RPM and YUM package management | Weight:3 Description:Candidates should be able to perform package management usingRPM, YUM and Zypper. Key Knowledge Areas: -Install, re-install, upgrade and remove packages using RPM, YUM and Zypper. -Obtain information on RPM packages such as version, status, dependencies, integrity and signatures. -Determine what files a package provides, as well as find which package a specific file comes from. -Awareness of dnf. The following is a partial list of the used files,terms and utilities: -rpm -rpm2cpio -/etc/yum.conf -/etc/yum.repos.d/ -yum -zypper |
| Linux as a virtualization guest | Weight: 1 Description: Candidates should understand the implications of virtualization and cloud computing on a Linux guest system. Key Knowledge Areas: -Understand the general concept of virtual machines and containers. -Understand common elements virtual machines in an IaaS cloud, such as computing instances, block storage and networking. -Understand unique properties of a Linux system which have to changed when a system is cloned or used as a template. -Understand how system images are used to deploy virtual machines, cloud instances and containers. -Understand Linux extensions which integrate Linux with a virtualization product. -Awareness of cloud-init. The following is a partial list of the used files, terms and utilities: -Virtual machine -Linux container -Application container -Guest drivers -SSH host keys -D-Bus machine id |
| GNU and Unix Commands | |
| Work on the command line | Weight:4 Description:Candidates should be able to interact with shells and commands using the command line. The objective assumes the Bash shell. Key Knowledge Areas: -Use single shell commands and one line command sequences to perform basic tasks on the command line. -Use and modify the shell environment including defining, referencing and exporting environment variables. -Use and edit command history. -Invoke commands inside and outside the defined path. The following is a partial list of the used files,terms and utilities: -bash -echo -env -export -pwd -set -unset -type -which -man -uname -history -.bash_history -Quoting |
| Process text streams using filters | Weight:2 Description:Candidates should be able to apply filters to text streams. Key Knowledge Areas: -Send text files and output streams through text utility filters to modify the output using standard UNIX commands found in the GNU textutils package. The following is a partial list of the used files, terms and utilities: -bzcat -cat -cut -head -less -md5sum -nl -od -paste -sed -sha256sum -sha512sum -sort -split -tail -tr -uniq -wc -xzcat -zcat |
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