A.SYNC or ASYNC to identify the network transmission mode. 
B.LGWR or ARCH to identify the primary database process responsible for sending redo information to the standby. 
C.AFFIRM or NOAFFIRM to control whether log archiving disk write operations are to be performed synchronously or asynchronously. 
D.PROTECTED or UNPROTECTED to control the degree of divergence and data loss at the standby database.

A.You cannot create global range partitioned indexes on the table. 
B.The optimizer will not execute partition wise joins on the table’s partitions. 
C.You must include at least one element in the value list of each partition of the table, even if that element is the keyword NULL. 
D.Partition pruning will not occur during query optimizer if a range of values is included in the query predicate.