well this question must have been done to death - in true ACN style here is the process because this is something you will need to learn when your there... telling clients what they already do
1)Locate search function its right at the top of the page and says "search thread for:"
2) type in yr question in the free text box- thats the white empty space ... examples include Accenture Salary, Accenture C1, etc etc
3) Hit the "search threads" button and as if my magic the search results appear
Now I know you know this... but because your at ACN your going to make out that this is really complex and will dumb it down even more to client ....
Good luck in yr interviews... remember the key is regurgitate what people tell you :)