I am confused whether creating a php5-fpm.conf file at /etc/apache2/conf-available/php5-fpm.conf is really required to run php-fpm with Apache on Ubuntu 14.04

This answer on D.O and this article on Vultr.com say this is required.

However, this article for Debian 8 and this article for Debian 7 on Linode both instruct to add the <IfModule mod_fastcgi.c> code only to /etc/apache2/mods-enabled/fastcgi.conf

Can someone here running Apache on Ubuntu 14.04 clarify which of these methods is correct? I doubt Linode would have those tutorials running on their site if the instructions are incorrect.