Identify two prerequisites for configuring Enterprise Manager Database Express (EM Express).
A.
Grant the APEX_PUBLIC_USER role to the SYSMAN user.
B.
Use the DBMS_XDB_CONFIG.SETHTTPPORT procedure to configure a port number for Oracle HTTP
Server.
C.
Install Oracle HTTP Server.
D.
Configure at least one dispatcher for the TCP/IP protocol.
E.
Create a SYSMAN user with the SYSDBA privilege as an administrator for EM Express.
I think BD
https://community.oracle.com/community/support/support-blogs/database-support-blog/blog/2016/06/24/em-express-in-12c
should be BE
http://www.oracle.com/technetwork/tutorials/chapter3obe-1903510.html
https://docs.oracle.com/database/121/ADMQS/GUID-EB851101-07BE-4038-BB9D-06E01CC7F5D5.htm#ADMQS032