Free LFCS – Linux Foundation Certified System Administrator Practice Test Question

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  New name servers may be added to the resolver configuration.

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  Network interfaces may become active or inactive.

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  The routing table may change.

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  IP addresses may change.

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  The system's host name may change.
  

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  Synchronize the hardware and system clocks.

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  Output date and time in different formats.

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  Set the system clock.

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  Set the hardware clock.

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  Update the time via NTP.
  

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  The user bob is removed from the system's user database.

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  The user bob's home directory is removed.

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  The locate database is updated to drop files owned by bob.

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  All files owned by bob are remove from all mounted filesystems.

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  In case bob was the last member of a group, that group is deleted.
  

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  text=olaf\ is\ home

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  text=$olaf is home

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  $text='olaf is home'

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  text=='olaf is home'

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  text="olaf is home"
  

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  ssh --port 2222 example.com

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  ssh -p 2222 example.com

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  ssh -o Port=2222 example.com

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  ssh -o GatewayPort=2222 example.com

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  ssh example.com:2222
  

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  usermod

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  passwd

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  chattr

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  chage

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  chsh
  

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  Postfix

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  Procmail

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  Sendmail

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  Exim

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  SMTPd
  

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  result: 3 4 5 6 2 1

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  result: 1 2 3 4 5 6

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  result: 6 5 4

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  result: 6 5 4 3 2 1

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  result: 3 2 1
  

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  /etc/gshadow

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  /etc/passwd

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  /etc/pwdlog

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  /etc/shadow

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  /var/log/shadow
  

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  CASE

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  FROM

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  WHERE

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  IF
  

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  -dirmax

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  -maxdepth

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  -maxlevels

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  -n

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  -s
  

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  The bootloader

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  The inetd program

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  The init program

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  The kernel
  

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  c

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  cc

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  1c

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  yy

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  1y
  

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  Every existing directory can be used as a mount point.

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  Only empty directories can be used as a mount point.

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  Directories need to have the SetUID flag set to be used as a mount point.

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  Files within a directory are deleted when the directory is used as a mount point.
  

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  standard error to standard input.

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  standard input to standard error.

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  standard output to standard error.

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  standard error to standard output.

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  standard output to standard input.