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programming languages Online Quiz - 225

Description: programming languages Online Quiz - 225
Number of Questions: 20
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Tags: programming languages
Attempted 0/20 Correct 0 Score 0

Which file test can be done to see if a file has the sticky bit set on it?

  1. -s

  2. -l

  3. -S

  4. -k


Correct Option: D

You want to close the directory handle EVAN. Which of the following should you use to accomplish this?

  1. close EVAN;

  2. closedir EVAN;

  3. close_directory EVAN;

  4. none of the above


Correct Option: B

Assume that $var has the value hello . What is the value of the following sting?q (It’s time to say $var);

  1. It’s time to say $var

  2. It’s time to say hello

  3. None

  4. Both


Correct Option: A

Which function can be used to print a message to standard error, but not quit the program?

  1. warn

  2. alert

  3. tell

  4. notifiy


Correct Option: A

Which file test can be done to see if a file is a symbolic link?

  1. -s

  2. -l

  3. -S

  4. -k


Correct Option: B

Which Perl function can be used to launch a child process to run a program?

  1. split

  2. spin

  3. fork

  4. system


Correct Option: D

Which file test can be done to see if a file exists and has a nonzero size?

  1. -s

  2. -l

  3. -S

  4. -k


Correct Option: A

Within Perl, which operator is used to change the working directory?

  1. cd

  2. chdir

  3. pwd

  4. wd


Correct Option: B

What is the value of @list at the end of the following program? #!/usr/local/bin/perl @list=(1,2.3); &testsub(*list); Sub testsub{ Local (*sublist)[email protected]_; $sublist[1] = 5; }

  1. (1,2.3)

  2. (1,5,3)

  3. Will produce error

  4. (1,4,3)


Correct Option: B
  1. The code will output the following: Masami 10 11 12 13

  2. The code will output the following: 10 Masami 10 11 12 13

  3. The code will output the following: 10 Masami 11 12 13 Niklas

  4. The code will output the following: Masami 10 11 12 13 Niklas


Correct Option: A
  1. The code will output the following: 11 12 13 14 15 16 17 18 19

  2. The code will output the following: 10 11 12 13 14 16 18 20 22

  3. The code will output the following: 10 11 12 13 14 16 18 20

  4. The code will output the following: 10 11 12 13 14 15 16 17 18 19 20


Correct Option: B
  1. The code will output the following:123

  2. The code will output the following: 3

  3. The code will output the following:23

  4. The code will output the following: 321


Correct Option: A

Which line of code represents the correct syntax to establish a reference to a database handle?

  1. $dbh = DBI::connect("dbi:mysql:myPhoneBook");

  2. $dbh = DBD:->connect("dbi::mysql::myPhoneBook");

  3. $dbh = DBD::connect("mysql:dbi:myPhoneBook");

  4. $dbh = DBI->connect("dbi:mysql:myPhoneBook");


Correct Option: D
  1. Page length of a particular output file

  2. The input end-of-line character

  3. The return code returned by a command called by the system function.

  4. The error code generated by a system library routine.


Correct Option: C
  1. Page length of a particular output file

  2. The input end-of-line character

  3. The return code returned by a command called by the system function.

  4. The error code generated by a system library routine.


Correct Option: D
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