In relation to Perl arrays, which of the following is a special variable that is used for determining the index of the last element in an array?

The correct output of the Perl code snippet? package Exp1; our $exp2; $exp2 = 45; package Exp2; our $exp2 = 85; print $exp2; our $exp2; print $exp2;

Output of the Perl code snippet. $var = 'First Example'; $y = 48; $output = 12 + $y; print For variable $var' . ' we have, $var.\n';

In relation to Perl security mechanism, select, which of the statement is/are correct? i) Arguments to print are always checked for taintedness. ii) Hash keys are never tainted

In relation to tying arrays in Perl, which options are used for providing $#array and equivalent scalar(@array) access?

Output of the subroutine in Perl 5.26.1? BEGIN { my $var = 86605; *RT_86606 = sub () { return $var }; $var++; } print RT_86606();

What function is used to check the length of a string?

our @ISA (person); What does @ISA mean?

How do I dereference a hash reference?

What option do I use to check the existence of a file?

To dereference $arrayref and then find the second element of that array, you use: