It is possible to delete a bucket and recreate another bucket with the same name. The new bucket is a different bucket (a different ID) with the same name.
All objects in a bucket are inaccessible after deletion, even if another bucket with the same name is subsequently created.
Best practice
For best results, wait at least twice the value of the cache.realmStaleTimeout parameter before recreating a bucket with the same name as a bucket deleted.
Wait 20 minutes after deleting a bucket with the cache.realmStaleTimeout value of 10 minutes (600 seconds) before creating the new bucket.