When you are performing media recover， and an archived log is lost or corrupt， which type of recover must you perform？（）

A.CREATE USER
B.CREATE SESSION
C.CREATE ANY TABLE
D.IMP_FULL_DATABASE
E.EXP_FULL_DATABASE

A.Every three minutes.
B.When a log switch occurs.
C.When forces by an administrator.
D.When a tablespace is taken offline normal.
E.When the redo buffer is one-third full.

A.A direct-load insert can be invoked by suing the APPEND hint.
B.Inserting using the NOLOGGING option is the default for direct-load inserts.
C.All data loaded using direct-load insert is loaded below the high-water mark.
D.An object that is modifies using parallel direct-load can be queried within the same Transaction.