You can gain a lot of information and help you prepare for your sales job interview by printing and reviewing the actual job description/posting. A job listing usually gives a brief description of the job and more importantly, what the company is looking for. By using the job description, you can gather some great intel and help you prepare some questions for the sales job interview.
The first thing you need to do is to match up the requirements of the job and your experience. Find the gaps as well as where you match up. The best thing to do, is to customize your resume based upon the information provided on the job description to meet the expectations of the hiring company and having this on your resume will give those viewing your resume, a candidate that qualifies to move forward in the sales hiring process.
You can also prepare great questions based upon the information on the job posting as well, by asking clarifying questions to dig deeper in understanding what the hiring company and sales manager is looking for. In doing your homework prior to the sales job interview, you will already have prepared for some questions that might come your way, as you are asked some qualifying questions. Use this as a key to help you develop an answer that helps position you as the best possible candidate. By reviewing the job posting, you can prepare yourself to meet the possible questions with your best foot forward, as well as customize your sales resume to match the needs.