operating systems Online Quiz - 70

Description: operating systems Online Quiz - 70
Number of Questions: 20
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Tags: operating systems
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If the device file for your CD-ROM is missing, (the "ioscan -fn" command shows the H/W path exists but there are no device files) what command could you run, without rebooting the system, to create the device files?

  1. mkcd -a

  2. insf -e

  3. lssf -e

  4. cdfs -a

Correct Option: B
  1. create a physical volume

  2. extend the logical volume

  3. create a filesystem

  4. extend the filesystem

Correct Option: A

Which of the following will come under the types of files ?

  1. Regular Files

  2. Directory Files

  3. Mode Files

  4. Special Files

Correct Option: A,B,D

Job Control is one of the feature of the UNIX ?

  1. True

  2. False

Correct Option: A
  1. C shell

  2. Bourne Shell

  3. Bash Shell

  4. B Shell

Correct Option: B

Which command is used to find the default permission ?

  1. chmode

  2. Umask

  3. chmode -r

  4. chmode -l

Correct Option: B
  1. This is an invalid command

  2. The editor goes in to insert mode and start inserting text after the current cursor location

  3. The editor searches for charater "a" in the open file

  4. The editor gives a beep sound

Correct Option: B

You have made changes to a file and want to quit vi without saving these changes. what command will you use?

  1. :wq

  2. x

  3. q!

  4. w!

Correct Option: C

You want to repalce "lion" with "tiger" in your field at all location in the vi editor.You use

  1. /s/lion/tiger

  2. s/lion/tiger

  3. s/lion/tiger/g

  4. s/tiger/lion/g

Correct Option: A
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