The Application Process

Team,
I am interested in Cornell's Exec MBA program and plan to apply by March 2013.

As per the process, i have to submit my resume for pre-assessment. Can some one please advice on -
1. Tips on preparing resume
2. What type of questions can i expect during pre-assessment.

Any other inputs/suggestion that may be helpful. After i clear the pre-assessment, i plan to take professional help for my essays.

Many Thanks !