Note the following functionalities of various background processes: 1:Record the checkpoint information in data file headers. CKPT 2:Perform recovery at instance startup. SMON 3:Cleanup unused temporary segments. SMON 4:Free the resources used by a user process when it fails. 5:Dynamically register database services with listeners. 6:Monitor sessions for idle session timeout. Which option has the correct functionalities listed for a background process()
A:Archiver Process (ARCn):1, 2,5
B:System Monitor Process (SMON):1,4,5
C:Process Monitor Process (PMON):4,5,6
D:Database Writer Process (DBWn):1,3,4
出自:Oracle认证