Michael J. Moore wrote:
> Okay, but why would CKPT be any more true than SMON? Does not SMON also
> perform I/O?
>
>
> "Ana C. Dent" <anacedent_at_hotmail.com> wrote in message
> news:ZK6Fb.32237$BQ5.9627_at_fed1read03...
>
>>Michael J. Moore wrote:
>>
>>>From 9i Self Test ...
>>>
>>>Which 4 background processes perform I/O? (Choose 4)
>>>
>>>* DBWn
>>>* ARCn
>>>* PMON
>>>* SMON
>>>* CKPT
>>>* LGWR
>>>-----------------
>>>I thought they all did, except CKPT which tells DBWn to do it, and PMON
>>>which only works with memory structures.
>>>
>>>Their answer was all except SMON and PMON. In reality, none of them do
>
> I/O
>
>>>because they call OS library routines to do the actual I/O. This is why
>
> I
>
>>>don't have a chance in hell of passing this test, because too many
>
> answers
>
>>>depend on how you consider the question. ;-)
>>>
>>>Any comments?
>>
>>I agree with "their" answer.
>>Which process writes to the control files?
Top posting is rude!
DBW - does I/O to datafiles
ARC - Does I/O when archiving redo logfiles
CKPT- Updates control files.
LGWR- Writes redo logfiles.
To which file(s) does SMON read & write?
Received on Sat Dec 20 2003 - 21:30:12 CST
