Tag: operating systems

Questions Related to operating systems

What character pair would you use to ensure the shell knows how to interpret a variable correctly?
technology operating systems

  1. [ ]

  2. $$

  3. {}

  4. ##

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Correct Option: C

Printer configuration information is stored in which directory?
technology operating systems

  1. /etc/lpd.conf

  2. /etc/default/printers

  3. /var/conf/lpd

  4. /usr/spool/lpd

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Correct Option: D

Pipes take up physical space on the hard disk.
technology operating systems

  1. True

  2. False

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Correct Option: A

what is the function of tee command in Unix?
technology operating systems

  1. “tee” command is used to direct the output to print as well as directs it to a file.

  2. “tee” command is used to direct the output to a file.

  3. “tee” command is used to direct the output to print

  4. “tee” command is used to direct output of a command as an input for another command.

  5. All of the above

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Correct Option: A

You attempt to remove a directory, but Linux won't allow you, what is the most likely problem?

technology operating systems

  1. The directory name contains illegal characters

  2. You are not logged in as root

  3. The hard disk is full

  4. The directory is not empty

  5. None are likely problems

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Correct Option: D

Which command creates a file system?
technology operating systems

  1. fdisk

  2. crfs

  3. mkfs

  4. fs

  5. None of the above

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Correct Option: C

To logout from your terminal you
technology operating systems

  1. Press Ctrl-Alt -Del

  2. switch off the terminal

  3. type exit

  4. Press Ctrl-u or type logout

  5. None of the above

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Correct Option: C

The command ls -l >> f1 would overwrite the contents of f1 with the output of the command ls -l .
technology operating systems

  1. True

  2. False

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Correct Option: B

what is the command to view the last 20 command issued?
technology operating systems

  1. View

  2. history -20

  3. Prev 20

  4. Last 20

  5. None of the above

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Correct Option: B

Users on your network cannot print to a Linux printer. You decide to restart the printer daemon, which command would achieve that?
technology operating systems

  1. topq printer-name

  2. enable printer-name

  3. restart printer-name

  4. up printer-name

  5. None of the above

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Correct Option: C