In relation to Perl security mechanism, select, which of the following 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();

In Perl, a comment starts with which option?

Output of the Perl code snippet? 'PPQS' =~ /P+Q?(?{print 'Count=$count\n'; '>

What will be the output of the following Perl code snippet?

print @exps = (1) x 5; print @exps, '\n'; @var = (3) x @exps; print @var;

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:

What is closure referencing?

What does $! show?

What does append do in FTP?