1. Explain Category and Tags in WordPress. How to convert a category into a tag?
Categorization and tags play a much greater role in content organization as well as SEO.
Categories: Essentially, categories are a general way to group content on a WordPress website. The idea of a category is to represent a topic or a group of topics that are somehow related to one another. A post can belong to several categories at once. Nevertheless, assigning more than two or three categories to one post is perhaps not the best idea.
Tags: Tags provide a good way to identify a piece of content by specific keywords. Just choose a few words that best describe a given post.