Re: OCP Architecture question

A lot of those multiple choice question are best approached from a reverse standpoint, much like a lot of my recent election experiences. You look at the choices and cross out the ones which are definitely not it until you whittled it down to the number of supposedly correct choices you need. If you don't like any of the choices you have to use those that you least not like.

At 05:24 PM 8/14/2003 -0800, you wrote:
>Im using the self test software and here is a question... I dont like the
>answers. Please tell me if Im wrong.
>
>Which Three methods can be used to avoid snapshot too old errors. This is
>for the 8i test.
>
>1. User larger extents
>2. Increase MAXEXTENTS for existing rollback segments
>3. Create rollback segments with higher optimal values
>4. Create rollback segments iwth high minextents
>5. Run long queries when transaction processing is high.
>
>Ruling out 5 is obvious. The test says its.
>
>1,3,4
>
>How does using large extents help this? What about a higher minextents value?

Wolfgang Breitling
Oracle7, 8, 8i, 9i OCP DBA
Centrex Consulting Corporation
http://www.centrexcc.com

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