Syntax Quiz - Languages Perl

Free practice quiz: Syntax (Languages Perl). 45 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. In Perl, which symbol is used to terminate a statement?

   1. ;
   2. :
   3. .
   4. ,
   Show answer

   Answer: A. ;

   A semicolon (;) is the standard statement terminator in Perl, signifying the end of an instruction.

2. What is the correct way to access the first element of an array named 'my_array' in Perl?

   1. $my_array[0]
   2. @my_array[0]
   3. $my_array[1]
   4. @my_array[1]
   Show answer

   Answer: A. $my_array[0]

   Array elements are accessed using their index (starting from 0) and the '$' prefix for the scalar value.

3. What is the purpose of the 'qw' operator in Perl?

   1. Quote words
   2. Quote variables
   3. Quote strings
   4. Quote regex
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   Answer: A. Quote words

   'qw' is a quoting operator that creates a list of words separated by whitespace.

4. Which Perl operator is used for a 'defined-or' operation?

   1. ||
   2. &&
   3. //
   4. ?:
   Show answer

   Answer: C. //

   The '//' operator returns the left operand if it is defined, otherwise it returns the right operand.

5. What does the 'use strict;' pragma do in Perl?

   1. Disables warnings
   2. Enforces stricter coding practices and catches common errors
   3. Enables debugging features
   4. Optimizes script performance
   Show answer

   Answer: B. Enforces stricter coding practices and catches common errors

   'use strict;' is a pragma that helps prevent common programming errors by enforcing rules such as requiring variable declarations (my, our, local).

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