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Perl Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Perl. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - Which of the following data types are preceded by a dollar sign ($) in Perl?
Answer : A
Explanation
Scalars are preceded by a dollar sign ($).
Q 2 - In which of the following variable context, assignment to an array or a hash evaluates the right-hand side in a list context?
Answer : B
Explanation
List − Assignment to an array or a hash evaluates the right-hand side in a list context.
Q 3 - Which of the following method shifts the first value of the array off and returns it, shortening the array by 1 and moving everything down?
Answer : C
Explanation
shift @ARRAY − Shifts the first value of the array off and returns it, shortening the array by 1 and moving everything down.
Q 4 - Which of the following statement restarts the loop block without evaluating the conditional again?
Answer : D
Explanation
redo statement − The redo command restarts the loop block without evaluating the conditional again. The continue block, if any, is not executed.
Q 5 - Which of the following operator checks if the value of two operands are equal or not, if values are not equal then condition becomes true?
Answer : B
Explanation
!= − Checks if the value of two operands are equal or not, if values are not equal then condition becomes true.
Q 6 - Which of the following operator returns true if the left argument is stringwise greater than or equal to the right argument?
Answer : D
Explanation
ge − Returns true if the left argument is stringwise greater than or equal to the right argument.
Q 7 - Which of the following operator encloses a string with-in invert quotes?
Answer : C
Explanation
qx{ } − Encloses a string with-in invert quotes.
Q 8 - Parameters of a function can be acessed inside the function using the special array @_?
Answer : A
Explanation
Parameters can be acessed inside the function using the special array @_. Thus the first argument to the function is in $_[0], the second is in $_[1], and so on.
Q 9 - Which of the following function opens a file in writing mode without truncating the file?
Answer : C
Explanation
open(DATA, "+<file.txt"); − opens a file in writing mode without truncating the file.
Q 10 - Which of the following function returns a single character from the specified FILEHANDLE, or STDIN if none is specified?
Answer : B
Explanation
The getc function returns a single character from the specified FILEHANDLE, or STDIN if none is specified.
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