Which background process is responsible for writing the dirty buffers from the write list to the data files during a checkpoint？（）

A.It detects corrupt blocks.
B.It performs only offline database backups.
C.It omits empty blocks during backups.
D.It performs tablespace point-in-time recovery （TSPITR）.

A.INIT.ORA
B.SQLNET.ORA
C.TNSNAMES.ORA
D.SERVICES.ORA
E.LISTENER.ORA

A.Oracle names
B.Local Naming
C.Host Naming
D.Names Server