q. 6 : which of the following is not a background server process in an oracle server
1. db writer 2. db reader 3. log writer 4. smon
2
q. 7 : which of the following is a valid background server processes in oracle
1. archiver 2. lgwr ( log writer ) 3. dbwr ( dbwriter ) 4. all of the above
4
q. 8 : the process that writes the modified blocks to the data files is
1. dbwr 2. lgwr 3. pmon 4. smon
1 : oracle does not modify the data in data file. once the server process makes a change in the memory, dbwr writes the modified blocks back to disk.
q. 9 : the process that records information about the changes made by all transactions that commit is
1. dbwr 2. smon 3. ckpt 4. none of the above
4 : lgwr process records the information about changes to database
q. 10 : oracle does not consider a transaction committed until
1. the data is written back to the disk by dbwr 2. the lgwr successfully writes the changes to redo 3. pmon process commits the process changes 4. smon process writes the data
