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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 is correct about Perl?
A - Perl stands for Practical Extraction and Report Language.
C - Perl supports both procedural and object-oriented programming.
Answer : D
Explanation
All of the above options are correct.
Q 2 - Which of the following special variable represents current line number?
Answer : C
Explanation
_LINE_ -represents current line number.
Q 3 - Which of the following is correct about $[ Special Variable?
A - This special variable is a scalar containing the first index of all arrays.
B - Because Perl arrays have zero-based indexing, $[ will almost always be 0.
Answer : D
Explanation
All of the above options are correct.
Q 4 - How will you add a new key/value pair to a hash?
Answer : A
Explanation
Adding a new key/value pair can be done with one line of code using simple assignment operator.
Q 5 - Which of the following statement executes a sequence of statements multiple times and abbreviates the code that manages the loop variable?
Answer : C
Explanation
for loop − Executes a sequence of statements multiple times and abbreviates the code that manages the loop variable.
Q 6 - Which of the following operator checks if the value of two operands are equal or not, and returns -1, 0, or 1?
Answer : C
Explanation
<=> − Checks if the value of two operands are equal or not, and returns -1, 0, or 1 depending on whether the left argument is numerically less than, equal to, or greater than 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 - Which of the following is true about my operator?
B - Outside confined region , my variable cannot be used or accessed.
Answer : C
Explanation
The my operator confines a variable to a particular region of code in which it can be used and accessed. Outside that region, this variable cannot be used or accessed.
Q 9 - Which of the following function deletes a file?
Answer : B
Explanation
unlink − used to delete a file.
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.