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operating systems Online Quiz - 77

Description: operating systems Online Quiz - 77
Number of Questions: 20
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Tags: operating systems
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Windows Firewall

technology operating systems

  1. firewall.cpl

  2. winfirewall.cpl

  3. winfwall

  4. firewall

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Correct Option: B

WindowsFirewall

technology operating systems

  1. firewall

  2. firewall.cpl

  3. winfirewall.cpl

  4. winfwall

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Correct Option: A

Command to display all running process

technology operating systems

  1. ps -aux

  2. ps -u

  3. ps -e

  4. ps

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Correct Option: A

How do you open My Computer?

technology operating systems

  1. Windows Logo + E

  2. Windows Logo + D

  3. Windows Logo + Z

  4. None

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Correct Option: A

How do you display the desktop?

technology operating systems

  1. Windows Logo + E

  2. Windows Logo + D

  3. Windows Logo + M

  4. None

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Correct Option: B

How can you display the start menu?

technology operating systems

  1. Ctrl + S

  2. Windows Logo + D

  3. Windows Logo

  4. None

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Correct Option: C

What is the shortcut to redo the last command?

technology operating systems

  1. Ctrl + R

  2. Ctrl + Y

  3. Ctrl + Z

  4. None

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Correct Option: B

What is the shortcut to rename a file?

technology operating systems

  1. F8

  2. Ctrl + W

  3. F2

  4. None

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Correct Option: C

What is the shortcut to search for a file or folder?

technology operating systems

  1. Ctrl + S

  2. F3

  3. Shift + F8

  4. None

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Correct Option: B

What is the shortcut to expand the current selection?

technology operating systems

  1. Ctrl + E

  2. right arrow

  3. left arrow

  4. None

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Correct Option: B

What is the shortcut to activate the menu bar in a program?

technology operating systems

  1. F1

  2. F10

  3. F3

  4. None

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Correct Option: B

AI Explanation

To answer this question, you need to know the shortcut key to activate the menu bar in a program.

Let's go through each option to understand why it is correct or incorrect:

Option A) F1 - This option is incorrect because the F1 key is typically used for accessing Help files or documentation in a program, not for activating the menu bar.

Option B) F10 - This option is correct. Pressing the F10 key on your keyboard usually activates the menu bar in a program. This allows you to navigate through the different menus and access various options.

Option C) F3 - This option is incorrect. The F3 key is commonly used for searching or finding text within a program, not for activating the menu bar.

Option D) None - This option is incorrect. There is a shortcut key to activate the menu bar in a program, which is the F10 key.

The correct answer is B) F10. This option is correct because pressing the F10 key usually activates the menu bar in a program, allowing you to navigate through the menus and access different options.

Disk partition manager

technology operating systems

  1. diskpartition

  2. diskpart

  3. diskpartition.msc

  4. diskpartition.cpl

Show answer
Correct Option: B

How could you check if two strings are equal?
technology operating systems

  1. test $a -eq $b

  2. test $a -equal $b

  3. test $a = $b

  4. sh -c test $a == $b

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Correct Option: C

Which of the following would return the process ID of the sleep command?
technology operating systems

  1. test sleep 1

  2. sleep 1 && echo $0

  3. sleep 1 & echo $!

  4. sleep 1 & echo $$

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Correct Option: C

Which of the following will always output "maple"?
technology operating systems

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

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

  3. $tree=maple; echo $tree

  4. export tree = maple; echo $tree

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Correct Option: A

What will be the output of "echo this || echo that && echo other"?
technology operating systems

  1. this

  2. that

  3. this other

  4. other

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Correct Option: C

To change access modes on files you can use the chmod command ?
technology operating systems

  1. True

  2. False

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Correct Option: A

What is the difference between for i in "$@" and for i in "$*" ?
technology operating systems

  1. "$@" takes the entire list and seperates it into special arguments whereas "$*" takes the entire list as one argument with spaces between them

  2. "$*" takes the entire list and seperates it into special arguments whereas "$@" takes the entire list as one argument with spaces between them

  3. Both statements will behave in the same way

  4. None of the above

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Correct Option: A

while getopts a:bc arg ; docase $arg ina ) echo "$OPTIND" ;;b ) echo "$OPTIND" ;;c ) echo "$OPTIND";;esacdoneWhat does the colon(':') after 'a' in the first line signify ?"
technology operating systems

  1. The getopts command ensures that a parameter is passed for -b option

  2. It signifies that u have to either specify -a option or you have to specify both -b and -c options

  3. The ":" has no effect in the command

  4. The getopts command ensures that a parameter is passed for -a option

Show answer
Correct Option: D

How will you search for the character '\' in a file ?
technology operating systems

  1. grep '\' filename

  2. grep \\ filename

  3. grep '\\' filename

  4. grep "\\" filename

Show answer
Correct Option: A,B,D
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