Are CA Datacom/DB DBSC and DBSX transactions needed? I found them in my existing Datacom CICS CSD.
No. The DBSC and DBSX CICS transactions are obsolete. They related to an internal security feature that was dropped with CA Datacom/DB Version 10.0 when only "external" security became available.
Refer to TEC1390158 "What are CA Datacom/DB SECPNL files, and are they still needed?"