Perl Quiz – Perl MCQ Online Test

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Aspirants can check their level of performance in Perl Quiz through this article. Here we are providing you with the complete information regarding the Perl MCQ Online Test, an overview of the quiz, benefits of taking the test, how to check your results, etc. Nowadays candidates are showing a lot of interest to practice quizzes to learn how to improve the time management skills. Keeping this point in mind, we are furnishing a Perl Online Test in the form of Multiple Choice Questions and Answers. Here contenders can attend the test from the beneath sections to improve their accuracy and speed. So, candidates who are interested in taking the test can go through this page thoroughly.

Perl Quiz Details

Candidates can check the above table to get an overview of the Perl Quiz. We are providing you with the number of questions asked in the online test, time limit allocation, type of the exam, and a lot more other details. So, contenders need to check the above table before anything else in this article. Also, candidates who are willing to practice the test can move to the next section, but before that try to check the instruction that is present in the next session.

You can also check: Perl Interview Questions

Perl MCQ Quiz Instructions

Here we are providing you with some instructions that you have to follow while taking the quiz.

• There is no time limit to complete the test.
• The total number questions are 25 questions.
• Each question carries one marks.
• Also, there are no negative marks.

Candidates have to click on Submit Test for submitting your answers. If you do not do so, the results will not be displayed on the screen. In addition to this, candidates should not refresh the page during the time of the test. Otherwise, there is a chance of losing answers that you have mentioned earlier.

Perl Online Test

Which one of the following operators is used to concatenate two strings in Perl?
a. ++
b. ||
c. &&
d. .
Answer: d.
The dot operator (.) is used for string concatenation in Perl.

In Perl, which one of the following symbols is used to denote the start of a comment line?
a. #
b. %
c. &
d. @
Answer: a.
The hash symbol (#) is used to denote the start of a comment line in Perl.

Which one of the following is the correct syntax to define a subroutine in Perl?
a. def subroutine_name { … }
b. subroutine subroutine_name { … }
c. sub subroutine_name { … }
d. function subroutine_name { … }
Answer: c. The correct syntax to define a subroutine in Perl is: sub subroutine_name { … }

What is the output of the following Perl code?
my $x = 5;
my $y = ++$x * 2;

a. $y = 10
b. $y = 12
c. $y = 11
d. $y = 5

Answer: b.
The output of the above Perl code is $y = 12. The prefix increment operator (++$x) increments the value of $x to 6, which is then multiplied by 2 to give $y = 12.

Which one of the following statements is true regarding Perl arrays?
a. Perl arrays can only store scalar values.
b. Perl arrays can only have a fixed size.
c. Perl arrays are always initialized with 0.
d. Perl arrays can store any type of value.
Answer: d. Perl arrays can store any type of value, including scalar values, arrays, and hashes.

What is the output of the following Perl code?
my $str = “hello world”;
$str =~ s/world/Perl/;
print $str;

a. hello Perl
b. Perl world
c. world Perl
d. hello world

Answer: a.
The output of the above Perl code is “hello Perl”. The =~ operator is used for pattern matching and substitution in Perl. Here, it replaces the substring “world” in $str with “Perl”.

Which one of the following is the correct syntax to access an element of a Perl array?
a. $array(index)
b. $array(index-1)
c. $array[index]
d. array[index]
Answer: c.
The correct syntax to access an element of a Perl array is: $array[index].

What is the output of the following Perl code?
my $str = “hello”;
print uc($str);

a. HELLO
b. hello
c. Hello
d. hElLo

Answer: a.
The output of the above Perl code is “HELLO”. The uc() function is used to convert a string to uppercase in Perl.

In Perl, which one of the following symbols is used to denote the end of a statement?
a. ;
b. :
c. ,
d. /
Answer: a.
The semicolon (;) is used to denote the end of a statement in Perl.

What is the output of the following Perl code?
my @arr = (1, 2, 3, 4, 5);
my $sum = 0;
foreach my $num (@arr) {
$sum += $num;
}
print $sum;

a. 15
b. 10
c. 5
d. 0

Answer: a.
The output of the above Perl code is 15. The code calculates the sum of all the elements in the @arr array using a foreach loop

Which one of the following functions is used to read input from the standard input in Perl?
a. read()
b. get()
c. input()
d. <>
Answer: d.
The <> operator is used to read input from the standard input in Perl.

What is the output of the following Perl code?
my $str = “hello”;
my $num = 123;
print “$str$num”;

a. hello123
b. 123hello
c. hello 123
d. syntax error

Answer: a.
The output of the above Perl code is “hello123”. The variables $str and $num are concatenated using the string interpolation syntax “$str$num”.

In Perl, which one of the following functions is used to remove leading and trailing whitespace from a string?
a. trim()
b. chomp()
c. chop()
d. s/^\s+|\s+$//g
Answer: d.
The regular expression s/^\s+|\s+$//g is used to remove leading and trailing whitespace from a string in Perl.

What is the output of the following Perl code?
my $x = 5;
my $y = 3;
print $x ** $y;

a. 125
b. 15
c. 8
d. 53

Answer: a.
The output of the above Perl code is 125. The ** operator is used for exponentiation in Perl.

Which one of the following is the correct syntax to declare a hash in Perl?
a. %hash = { key1 => value1, key2 => value2 };
b. %hash = [ key1 => value1, key2 => value2 ];
c. %hash = ( key1 => value1, key2 => value2 );
d. hash = { key1 => value1, key2 => value2 };
Answer: c.
The correct syntax to declare a hash in Perl is: %hash = ( key1 => value1, key2 => value2 );

What is the output of the following Perl code?
my @arr = (1, 2, 3);
my $size = @arr;
print $size;

a. 3
b. 6
c. 0
d. syntax error

Answer: a.
The output of the above Perl code is 3. The scalar context operator ($) is used to get the number of elements in the @arr array.

In Perl, which one of the following operators is used for string comparison?
a. <=>
b. ==
c. eq
d. ne
Answer: c.
The eq operator is used for string comparison in Perl.

What is the output of the following Perl code?
my $str = “hello world”;
my @arr = split(” “, $str);
print $arr[0];

a. hello
b. world
c. hello world
d. syntax error

Answer: a.
The output of the above Perl code is “hello”. The split() function is used to split a string into an array based on a delimiter. Here, the delimiter is a space character.

Which one of the following Perl functions is used to return the length of a string?
a. length()
b. size()
c. count()
d. len()
Answer: a.
The length() function is used to return the length of a string in Perl.

What is the output of the following Perl code?
my $str = “hello world”;
my $rev_str = reverse($str);
print $rev_str;

a. dlrow olleh
b. world hello
c. hello world
d. syntax error

Answer:a

The output of the above Perl code is “dlrow olleh”. The reverse() function is used to reverse the order of characters in a string.

About Perl Language

Perl start for Practical Extraction and Report Language. Also, it runs on various platforms like Windows, Mac OS, and multiple versions of UNIX. It is used for mission-critical projects in both public and private sectors. And, Perl is extensible, it supports Unicode, and is Y2K compliant. It also supports both procedural and object-oriented programming.

Benefits of Practicing Perl Quiz

• Improve Speed, Accuracy, and Versatility.
• Learn the skills to solve a problem.
• To Enhance Coding Skills.
• Maintain proper time management which is essential to qualify any campus interview.

How To Check Perl Programming Online Test Results

Results can be checked on the quiz page, as soon as you click on submit the test. Candidates have to know that, if you do not submit your test, then you cannot check your results.

Check a lot more details and relevant online tests on various other programming languages through our website Freshersnow.com