Tag: perl

Questions Related to perl

In Perl, a/n ________ is a special character or a sequence that will define the number of times the previous character or sequence appears.
perl

  1. character class

  2. metacharacter

  3. assertion

  4. quantifier

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Correct Option: D

In Perl, the following will result in which of the following, if the prize is currently "5 dollars" print 'You won $prize';
perl

  1. You won $5.00

  2. You won 5 dollars

  3. You won $prize

  4. You won $5

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Correct Option: C

In Perl, the words function and subroutines are used interchangeably.
perl

  1. True

  2. False

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Correct Option: A

In Perl, which of the following are file handles?
perl

  1. stdquit

  2. stdend

  3. stdin

  4. stdout

  5. C&D

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Correct Option: E

In Perl, which switch is used for printing out warnings about typographical errors in your script?
perl

  1. -P

  2. -W

  3. -p

  4. -w

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Correct Option: D

In Perl, "stat" returns a thirteen element array with which of the following values?

perl

  1. Perl version ID

  2. Web server ID

  3. Last access

  4. Inode number

  5. C&E

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Correct Option: E

AI Explanation

To answer this question, we need to understand the functionality of the "stat" function in Perl. The "stat" function in Perl is used to retrieve information about a file or a filehandle. It returns a thirteen-element array that contains various attributes of the file.

Let's go through each option to understand which values are returned by the "stat" function:

Option A) Perl version ID - This option is incorrect. The "stat" function does not return the Perl version ID. It provides information about the file, not the Perl version.

Option B) Web server ID - This option is incorrect. The "stat" function does not return the Web server ID. It provides information about the file, not the web server.

Option C) Last access - This option is correct. The "stat" function returns the last access time of the file as one of the elements in the array.

Option D) Inode number - This option is correct. The "stat" function returns the inode number of the file as one of the elements in the array.

So, options C and D are correct. Therefore, the correct answer is E) C&E, as both options C and D are returned by the "stat" function in Perl.

CGI is a programming language.
perl

  1. True

  2. False

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Correct Option: B

In Perl, scalar variables always begin with a ________ sign.
perl

  1. #

  2. @

  3. %

  4. $

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Correct Option: D

PERL is

perl

  1. Procedural

  2. OOPs

  3. Both

  4. None

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Correct Option: C

Pick the odd one out

perl

  1. ord

  2. sort

  3. reverse

  4. foreach

Show answer
Correct Option: D

AI Explanation

To answer this question, we need to identify the option that does not fit with the others.

Option A) ord - The ord function is used to return the ASCII value of a character. It is a valid function.

Option B) sort - The sort function is used to sort an array or a list in ascending order. It is a valid function.

Option C) reverse - The reverse function is used to reverse the order of elements in an array or a list. It is a valid function.

Option D) foreach - The foreach loop is used to iterate over elements in an array or a list. It is different from the other options, which are functions or methods. It is the odd one out in this context.

Therefore, the correct answer is D) foreach.