What is a primary characteristic of a wiki?

A primary characteristic of a wiki is that anyone can add, edit, or delete content. This collaborative model allows multiple users to contribute and share information, which is central to the concept of a wiki. It creates an environment where knowledge is built collectively and can be updated continuously, reflecting the most current understanding of a topic.

This open-editing feature distinguishes wikis from other types of online content, where typically, the website owner controls the information. In a wiki, the ability for any user to contribute ensures diversity of perspectives and collectively sourced information. The dynamic nature of wikis encourages user participation and learning, making them a valuable resource for collaboration and knowledge sharing.

Other options highlight characteristics typically not found in wikis. For instance, content being solely created by the website owner or requiring professional review before publication contradicts the fundamental idea of a wiki being community-driven. Additionally, the notion that content can only be viewed and not edited opposes the essence of what a wiki is, which promotes active contribution and user engagement.