What is a true statement in regards to the benefits of Perl programming when using it in web based applications?

Which special variable represents current line number?

What value do variables have before they are first assigned?

Which Library Modules are available in Perl? Check all that apply.

What is the default scope of perl variables?

Which data types are supported in Perl?

Which parameter does the printf function take?

Which loop is usually used to process array?

Which begin or end a system command string in Perl?

Which meta character creates a single expression or atom?

Dereferencing refers to.