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 an "at" sign (@) in Perl?
Answer : B
Explanation
Arrays are preceded by an "at" sign (@).
Q 2 - Which of the following special variable represents current file name?
Answer : B
Explanation
_FILE_ -represents current file name.
Q 3 - Which of the following method sorts the LIST and returns the sorted array value?
Answer : D
Explanation
sort [ SUBROUTINE ] LIST − This function sorts the LIST and returns the sorted array value. If SUBROUTINE is specified then specified logic inside the SUBTROUTINE is applied while sorting the elements.
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 performs exponential (power) calculation on operators?
Answer : D
Explanation
** − Exponent − Performs exponential (power) calculation on operators.
Q 6 - Which of the following operator checks if the value of left operand is less than the value of right operand, if yes then condition becomes true?
Answer : A
Explanation
> − Checks if the value of left operand is less than the value of right operand, if yes then condition becomes true.
Q 7 - Which of the following operator returns true if the left argument is stringwise not equal to the right argument?
Answer : B
Explanation
ne − Returns true if the left argument is stringwise not equal to the right argument.
Q 8 - Which of the following is correct about lexical variables?
A - Lexical variables are private variables created using my operator.
Answer : A
Explanation
Lexical variables are private variables created using my operator.
Q 9 - Which of the following operator is used when the current value of a variable must be visible to called subroutines?
Answer : B
Explanation
The local is used when the current value of a variable must be visible to called subroutines.
Q 10 - Which of the following is true about dereferencing?
A - Dereferencing returns the value from a reference point to the location.
Answer : C
Explanation
Both of the above options are correct.
