Apparently it is:
[root@ip-10-0-4-10 wordpress]# cat .htaccess | grep -i rewrite
RewriteEngine on
RewriteRule wp-content/.*/[^/]*(loader|fonts|\.css|\.js)\.php – [E=cache-control:max-age=3600]
RewriteRule favicon\.ico$ – [E=cache-control:max-age=86400]
<IfModule mod_rewrite.c>
RewriteEngine On
Thanks for the terse response t-p.
Just some more history, our previous hosting provider were the ones to set up the website including Permalinks.
We are just trying to deal with fall out now that we have moved hosts and the previous host is not helping in terms of advising us how/why the permalinks were set the way they were.