If a sub-element is included in an element in your RSS feed - which attribute must be set to 'true' to consider guid as a url that points to the full item described by the element?

Practice this Upwork Skill Test. Freelancers take skill tests on Upwork to show their skills to potential clients and to make themselves more marketable. Upwork suggests you take as many tests as you want -  your skills are shown on your Upwork profile page.