Hi I was searching for some RAC interview question on the net and came across this interesting question. http://forums.oracle.com/forums/thread.jspa?threadID=359799 Question: Configure your client TNS so that it connects to PROD3 first then PROD2 and both fails then to prod1. (There will be lot of glitches on the network). I must say i am stumped by this question does anybody know how to go about doing this ? regards Hrishy