Parvin Etibarli Java

 1. 403 : Forbidden. When password and username are correct but do not have access. 2. 200 : OK 3. 401 : Unauthorized. When either password or username are incorrect. 4. 405 : Method not allowed. This means there is no such URL. 5. 

 1. mongod: to start mongo db on port 27017 2. show dbs: shows databases 3.