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programming languages Online Quiz - 331

Description: programming languages Online Quiz - 331
Number of Questions: 20
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Tags: programming languages
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Which of the following are syntax that can be used to declare a function?

  1. function_name() {command-list }

  2. function_name ( ) { }

  3. function name (command list ) {

  4. None


Correct Option: A

"Which of these commands redirects the output of cat testfile to redirfile without overwriting the contents of redirfile? "

  1. cat testfile >redirfile

  2. cat testfile >>redirfile

  3. cat testfile 1> redirfile

  4. cat testfile 2> redirfile


Correct Option: B

"What stream usually outputs error messages to the screen? "

  1. stdout

  2. stderr

  3. stderr2

  4. stdouterr


Correct Option: B

"The command is used within a function to exit the function with a given status. "

  1. "local

  2. " function

  3. "return

  4. "parameter


Correct Option: C

"Which directory is the standard for storing shell scripts created by systems adminstrators? "

  1. /etc

  2. /bin

  3. /dev

  4. /rc.d


Correct Option: B
  1. Tests for command-line arguments

  2. Shifts arguments to the left

  3. Exits the program

  4. Creates a pause in the program


Correct Option: D

"The ______ loop executes as long as the condition returns an exit status of zero, whereas the _______ loop executes unless the condition returns a zero exit status. "

  1. while,until

  2. until, while

  3. repeat, while

  4. None


Correct Option: A

"Which command do you use to make the /etc/inputrc file immutable? "

  1. chattr +i /etc/inputrc

  2. chmod 666 inputrc

  3. chmod g=rw inputrc

  4. None


Correct Option: A

What Linux file would you use when performing a rescue after a hard disk problem occurs?

  1. /dev/hda1

  2. /dev/null

  3. /dev/ram

  4. /dev/tty


Correct Option: A

"Which group of letters are the file permissions that apply to a group in the string r--r-xrwx? "

  1. r--

  2. r -x

  3. rwx

  4. None


Correct Option: B

"Which command will create a hard link named ""Link"" to the ""Test"" file? "

  1. ln -s Test Link

  2. ln Test Link

  3. ln / Link Test

  4. ln -h Link Test


Correct Option: B

What does the command umask 123 do?

  1. It sets file owner permissions to read and write

  2. It sets the permissions of other users to read

  3. It sets group permissions to read and execute

  4. All of them


Correct Option: D

User's with user id as 0 (Zero) are

  1. Printer users

  2. Not allowed to login using rlogin/ssh

  3. root users

  4. User id cannot be 0


Correct Option: C

User's passwords are generally stored in

  1. /etc/passwd

  2. /var/passwd

  3. /etc/password

  4. /var/password


Correct Option: A

What is the purpose of sync command?

  1. To synchronize user applications

  2. To synchronize keyboard and monitor

  3. To synchornize disk buffers

  4. To syschronize main memory and cache memory


Correct Option: C

How to mount a file system?

  1. fsck

  2. fsmount

  3. mount

  4. mountfs


Correct Option: C

The option not allowed in test command

  1. -d

  2. -l

  3. `-u

  4. -a


Correct Option: B

linux allows more than one root directory

  1. True

  2. False


Correct Option: B
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