Does assetbundle works like DLC or is it just streaming?

Does assetbundle works like DLC or is it just streaming?

I have not used an assetbundle but I have watched conference and tutorials about asset bundle.
But I don’t know if the downloaded asset bundles merged into the game. Like you will be downloading it once just like downloadable contents ?

Hope you get what I mean.

Your thinking is correct. You will download the assetbundle only once and it will be merged with your project files. You will not be streaming so you will even be able to use the package offline.
Hope this helps