Which of the following options is less secure than the other, and should not be used for authentication?

Which statement is/are correct about the command paragraph of perlpod? i) The '=item' command should be used outside of the '=over'... '=back' region. ii) An '=item' should be the first thing after an '=over' command unless there are not going to be any items at all. iii) The '=headn' command cannot be put inside an '=over'... '=back' region.

In relation to identifier parsing in Perl, which of the following options is invalid?

In relation to use strict; in Perl, a variable must be declared with which of the following keywords in order to use it for the first time?

Which Perl debugging commands is used for displaying all the loaded modules and their versions?

Which command is used to confirm the installation of Perl on the Windows operating system?

To execute blocks of code depending on whether a condition is met, you use:

Which would declare a global variable?

What does Perl -e on the command line do?

What's is DBI and DBD?

How would you remove an element from hash?