Perl

In Perl, which symbol is used to indicate a scalar variable?

• @

• %

• $

• &

What is the correct way to declare an array in Perl?

• @array = (1, 2, 3, 4);

• array = [1, 2, 3, 4];

• $array = {1, 2, 3, 4};

• %array = (1, 2, 3, 4);

What is the default variable in Perl that stores the current topic or input?

• %_

• $_

• @ARGV

• $default

Which of the following is a valid Perl loop statement?

• for(condition) {}

• foreach my $item (@array) { print $item; }

• loop() {}

• do while() {}

What is the correct way to check if two scalar values are equal in Perl?

• if ($x = $y)

• if ($x == $y)

• if ($x eq $y)

• if ($x equals $y)

How are string values concatenated in Perl?

• Using the . operator

• Using the + operator

• Using the & operator

• Using the , operator

Which function is used to get user input from the keyboard in Perl?

• get()

• <STDIN>

• read()

• input()

How do you define a function in Perl?

• function myFunction() { }

• def myFunction() { }

• sub myFunction { }

• fn myFunction() { }

How do you pass parameters to a function in Perl?

• function(param1, param2)

• myFunction[param1, param2]

• sub myFunction { my ($param1, $param2) = @_; }

• def myFunction(param1, param2)

What is the purpose of the return statement in a Perl function?

• To exit the program

• To return a value from a function

• To declare a function

• To call another function