WordPress allows access to a portable core. This implies

Where can you find plugins for combating comment spam?

Who can see password protected posts without knowing the password?

WordPress can import from which blogging platforms?

An AJAX action registered within WordPress can be accessed directly without performing a JavaScript-driven AJAX call.

By adding define('WP_POST_REVISIONS', 3); to your wp-config.php file, you are effectively:

Which filter would you use to allow users to enter Twitter accounts into their profiles?

What function should you use to clear post cache for a specific post?

In what table is category meta stored?

Which function should be called to verify a nonce value in the WordPress admin?

On a legacy host, what term indicates your host is limiting the ability of viewers to easily modify wp-config.php?