Which two statements about Juniper NextGen Web Filtering are correct?

Juniper NextGen Web Filtering provides URL category and reputation-based control for HTTP and HTTPS traffic. Juniper documentation states that URL categories are available in the Juniper NGWF cloud and that NGWF supports categorization and recategorization functions. The recategorization process is performed using operational mode commands such as request security utm web-filtering recategorize url and related status commands, not by editing normal Junos configuration statements. Therefore, option B is correct. Option C is also correct because NGWF uses predefined Juniper NextGen URL categories. Option A is incorrect because recategorization is not performed as a standard configuration object change. Option D is incorrect because Juniper also supports custom URL category mechanisms for local web filtering use cases.