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operating systems Online Quiz - 49

Description: operating systems Online Quiz - 49
Number of Questions: 20
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Tags: operating systems
Attempted 0/20 Correct 0 Score 0
  1. a. test $a –eq $b

  2. b. test $a –equal $b

  3. c. test $a = $b

  4. d. sh –c test $a == $b


Correct Option: C
  1. a. sleep 1 & echo $

  2. b. sleep 1 & echo $#

  3. c. sleep 1 & echo $$

  4. d. sleep 1 & echo $!

  5. e. sleep 1 && echo $0


Correct Option: D
  1. a. $tree = maple;echo $tree

  2. b. tree = maple; echo $tree

  3. c. tree=maple; export $tree; sh –c “echo $tree”

  4. tree=maple; export tree; sh -c "echo $tree"


Correct Option: D
  1. a. case “dog” in *) echo cat;; esac

  2. b. case “cat” in cat) echo$1 exit

  3. c. case cat dog rabbit; echo $1

  4. d. echo cat | case $1 in cat) echo $1 ;; esac

  5. e. case (cat dog rabbit) {echo $2}


Correct Option: A
  1. a. for n in one two three ; do echo –n $n ; done

  2. b. for val ; do echo –n $val ; done

  3. for n in one two three ; do echo -n $n ; done

  4. d. foreach n in one two three; do echo –n $n ; done

  5. e. foreach n in one two three { echo –n $n }


Correct Option: C
  1. Gnome not Unix

  2. GNU not unix.

  3. gnome

  4. gnometrics


Correct Option: B
  1. killer

  2. knome

  3. K (just k, alphabet before L)

  4. kick


Correct Option: C
  1. dir

  2. show contents

  3. show dir contents

  4. ls


Correct Option: D

command for listing file contents normally

  1. cat

  2. dog

  3. mouse

  4. lion


Correct Option: A

what is the name of Linux boot loader

  1. lilo

  2. grub

  3. ntloader

  4. booter


Correct Option: B
  1. 4 times to RAM

  2. 3 Times to RAM

  3. 2 times to RAM

  4. RAM size


Correct Option: C

using root user in a GUI environment is a security issue ??

  1. yes

  2. no

  3. cant say

  4. dont know


Correct Option: A
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