Perl MCQs with answers Page - 7

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πŸ“Š Perl
Q. What is a number in Perl?
  • (A) Mathematical object for counting, measuring, and performing mathematical operations
  • (B) math module
  • (C) Non string type
  • (D) All of these
πŸ’¬ Discuss
βœ… Correct Answer: (A) Mathematical object for counting, measuring, and performing mathematical operations

Explanation: Number in Perl is a mathematical object for counting, measuring, and performing mathematical operations.

πŸ“Š Perl
Q. Scalar is denoted by_______in Perl.
  • (A) #
  • (B) %
  • (C) $
  • (D) ^
πŸ’¬ Discuss
βœ… Correct Answer: (C) $
πŸ“Š Perl
Q. In Perl, the words function and subroutines are used interchangeably
  • (A) True
  • (B) False
  • (C) All the above
  • (D) None
πŸ’¬ Discuss
βœ… Correct Answer: (A) True
πŸ“Š Perl
Q. How do you perform a forward declaration of a subroutine performed?
  • (A) forward sub name
  • (B) sub name
  • (C) forward name
  • (D) sub name {
πŸ’¬ Discuss
βœ… Correct Answer: (A) forward sub name
πŸ“Š Perl
Q. What will display the list of warning messages regarding the code?
  • (A) Strict pragma
  • (B) The -w Command-line argument
  • (C) Using the built-in debugger
  • (D) None
πŸ’¬ Discuss
βœ… Correct Answer: (C) Using the built-in debugger
πŸ“Š Perl
Q. Which of these is NOT available for Perl
  • (A) Perl, legally, for free
  • (B) Individual and site licenses
  • (C) Full documentation of the language which you can print out yourself
  • (D) A Caribbean cruise in 2006 on which you can meet some of the Perl gurus
πŸ’¬ Discuss
βœ… Correct Answer: (C) Full documentation of the language which you can print out yourself
πŸ“Š Perl
Q. The "+= is which type of operator?
  • (A) comparison operators
  • (B) Arithmetic operators
  • (C) Increment/ decrements operators
  • (D) Assignment operators
πŸ’¬ Discuss
βœ… Correct Answer: (D) Assignment operators
πŸ“Š Perl
Q. The getdir command
  • (A) Reads a single file name from an open directory handle
  • (B) Reads the rest of the file names from an open directory handle
  • (C) Only works after anopendir command
  • (D) Is not a perl command
πŸ’¬ Discuss
βœ… Correct Answer: (D) Is not a perl command
πŸ“Š Perl
Q. '%b' in the Perl output statement used to?
  • (A) Print backspace character
  • (B) Print binary of a number
  • (C) Print the statement in bold in web
  • (D) None of these
πŸ’¬ Discuss
βœ… Correct Answer: (B) Print binary of a number

Explanation: The "%b" character sequence is used to print the number's hexadecimal conversion.

πŸ“Š Perl
Q. Which escape sequence is used to print hexadecimal of a number in Perl?
  • (A) %h
  • (B) %b
  • (C) %hex
  • (D) %x
πŸ’¬ Discuss
βœ… Correct Answer: (D) %x

Explanation: The "%x" character sequence is used to print the number's hexadecimal conversion.

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