How to determine apiGroups when creating roles

On the exercise for CKS for rolebinding, the answer is to create the role with apiGroups “apps” and “extensions”, my question is how to know the apiGroups needed, “apps” is on the documentation, but what about “extensions”?
Thanks

Hello @marioaxel.luna,

the extensions was an old version of the Deployment. So, it is not mentioned the latest version of the documentation.

Thanks,
KodeKloud Support