FILL BLANK
Which command is used to sync the hardware clock to the system clock? (Specify only the command without any path or parameters.)

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On a system using shadowed passwords, the most correct permissions for /etc/passwd are ___ and the most correct permissions for /etc/shadow are _________.

• A.-rw-r--rw-, -r-----r--
• B.-rw-r-----, -r--------
• C.-rw-------, -r--------
• D.-rw-r--r--, -r--------
• E.-rw-r--r--, -r--r--r--

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On a machine running serval X servers. how do programs identify the different instances of theX11 server?

• A.By the name of the user that turns the X server like x11: bob.
• B.By a device name like /dov/x11/xeorvore/1.
• C.By a display name like :1.
• D.By a fixed UUID that is defined in the X11 configuration file.
• E.By a unique IPv6 address from the fc80: /64 subnet.

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