Using the RMAN Recovery Catalog - OCP: Oracle Database 12c Administrator Certified Professional - page 188

10. Which is the correct way to connect to both the target database and the recovery cata-
log from the RMAN command line? Assume that the target database is called ORCL
and that the recovery catalog database is called RCAT . Also assume that the recovery
catalog owner is called RCAT_OWN . Assume the environment is configured for the ORCL
database. (Choose all that apply.)
A. RMAN TARGET=/ CATALOG=/@RCAT
B. RMAN TARGET=/ CATALOG=RCAT_OWN/RCAT_OWN
C. RMAN TARGET=/ CATALOG=RCAT_OWN/RCAT_OWN@RCAT
D. RMAN TARGET=SYS/ROBERT@ORCL CATALOG=RCAT_OWN/RCAT_OWN@RCAT
E. You cannot connect to the target database and the recovery catalog at the same time.