Cloaking Vs doorway pages

[amcofab]

What is the difference between Cloaking and doorway pages.

[RHCalvin]

Cloaking is a search engine optimization technique in which the content or information presented to the user is different from that presented to search engine crawlers that are spiders or bots for better indexing.

Doorways are sites or pages created to rank highly for specific search queries. They are bad for users because they can lead to multiple similar pages in user search results, where each result ends up taking the user to essentially the same destination. They can also lead users to intermediate pages that are not as useful as the final destination.