Making alterations to WordPress core files is

Which function is use for create custom post type ?

Shortcode styles are retained when you switch to a theme that does not use shortcodes.

What function do you use to flush rewrite rules?

Which file do you need to change in order to modify the post template?

Which is NOT a WordPress-generated CSS Class?

What WordPress function allows you to check users capabilities?

How to retrieve current user ID?

The the_post() method in the WP_Query class sets up which global variable?

How do you register a WordPress custom nav menu?