Explain what System?d is, and describe service units and target units.

What will be an ideal response?


Like the UNIX SysV init daemon, the Systemd init daemon is used to start daemons during system initialization as well as start and stop daemons after system initialization. However, Systemd can also be used to start, stop, and configure many other operating system compo- nents. To Systemd, each operating system component is called a unit. Daemons are called service units because they provide a system service, and runlevels are called target units (or targets). By default, each target maps to a UNIX SysV runlevel:poweroff.target is the same as Runlevel 0.rescue.target is the same as Runlevel 1 (Single User Mode).multi-user.target is the same as Runlevel 2, 3 and 4.graphical.target is the same as Runlevel 5.reboot.target is the same as Runlevel 6.

Computer Science & Information Technology

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Data is stored in Access in ________

A) multiple tables B) a flat table C) a chart D) formulas

Computer Science & Information Technology

What is a flat profile? What is a call graph?

What will be an ideal response?

Computer Science & Information Technology

________ dependency occurs when the value of one field is determined by the value of another field

Fill in the blank(s) with correct word

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The ________ is the area of the File Explorer interface which allows a user to interact with the operating system using tabs at the top of the screen instead of menus

A) Quick Access Toolbar B) Navigation pane C) title bar D) Ribbon

Computer Science & Information Technology