You would do well to purchase a book of case interviews because How gain access to the Top Consulting Firms: A Surefire Case Interview Method by T. Darling or Case in Point: Complete Case Interview preparation by Marc. P Cosentino and work through their example cases. These books will also give you additional tools to to be able to work through the cases.
With competition for many jobs to be able to at a superior level, the top candidates tend to be very near the coast skills level and certification. So the winning approach that will put you ahead of the competition is proper job Interview preparation.
On page two you now get targeted. Place a heading every need of this employer along with perhaps a general category produced by a company initiative