A.man 1 command

B.man command(1)

C.man command@1

D.man 1.command

E.man -s 1 command

A.All changes to files in /proc/ are immediately recognized by the kernel.

B.All files within /proc/ are read-only and their contents cannot be changed.

C.All changes to files in /proc/ are stored in /etc/proc.d/ and restored on reboot.

D.All files within /proc/ are only readable by the root user.

A.8e

B.7

C.82

D.fd

E.83

A.S02apache2is run when runlevel 2 is entered.

B.S02apache2is run when runlevel 2 is left.

C.K01apache2is never run because K indicates a deactivated service.

D.Both S02apache2and K01apache2are run during a system shutdown.

E.K01apache2is run when runlevel 1 is entered.

A.fsck binaries

B.systemd target and service units

C.Linux kernel images

D.Initial ramdisk images

E.Bash shell binaries