troubleshooting Question

Data guard and RAC

Avatar of jung1975
jung1975 asked on
Oracle Database
5 Comments5 Solutions1207 ViewsLast Modified:
what is Data guard?
what is RAC?

Can someone explain to me the difference between data guard and RAC?  
I am running both 9i and 10g on window 2003 server? Does window server support both Data guard and RAC?  Are these the best options for the disaster recovery ?
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